CN104617354A - Metal-air battery and metal-air battery unit - Google Patents
Metal-air battery and metal-air battery unit Download PDFInfo
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- CN104617354A CN104617354A CN201410665137.9A CN201410665137A CN104617354A CN 104617354 A CN104617354 A CN 104617354A CN 201410665137 A CN201410665137 A CN 201410665137A CN 104617354 A CN104617354 A CN 104617354A
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- China
- Prior art keywords
- pole
- metal
- air
- exterior body
- sheet
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- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
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- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/138—Primary casings; Jackets or wrappings adapted for specific cells, e.g. electrochemical cells operating at high temperature
- H01M50/1385—Hybrid cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
- H01M12/065—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode with plate-like electrodes or stacks of plate-like electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Hybrid Cells (AREA)
Abstract
Provided are: a low-cost lightweight metal-air battery which is advantageous in terms of disposability; and a metal-air battery unit. An outer package (11), which has an air electrode (13) and contains a magnesium electrode (15) that constitutes a metal electrode facing the air electrode (13), is formed of a sheet material that contains paper. Paper complexed by lamination using a thermally adhesive resin is used for the sheet material.
Description
Technical field
The present invention relates to possess and not only there is air pole but also for the metal-air cell of the exterior body of accommodating metal pole and metal-air cell unit.
Background technology
There will be a known following a kind of metal-air cell: when natural disaster, geomantic omen disaster time and be difficult to obtain AC power supplies environment under, inject the electrolyte such as salt solution and just can generate electricity.The exterior body of metal-air cell uses metal can or resin container usually.But because this exterior body needs filler or seal for preventing electrolyte leakage, therefore production part increasing number, assembling man-hour or cost increase.Further, likely because of filler or seal bad or deteriorated and cause electrolyte leakage.In addition, metal can or the such exterior body of resin container can become heavy.
In addition, as package body (Li battery package part), the battery proposed beyond to metal-air cell has used stacked the stacked film of resin and aluminium foil (for example, see patent documentation 1).
Prior art document
Patent documentation
Patent documentation 1: Japan Patent No. 4296771 publication
Summary of the invention
In view of the above problems, the object of this invention is to provide low cost, lightweight and be easy to discarded metal-air cell and the metal-air cell unit for accommodating multiple metal-air cell.
All the elements of following invention are comprised: the Patent 2013-238628 of Japanese invention application, Patent 2014-009265, Patent 2014-01722, Patent 2014-017606, Patent 2014-185154 in this specification.
In order to solve the problem, metal-air cell of the present invention has exterior body, and this exterior body had not only had air pole but also for accommodating the metal pole opposed with described air pole, wherein, described exterior body is formed by the sheet material containing paper.Adopt this structure, low cost, lightweight and be easy to discarded metal-air cell can be provided.
Preferred described sheet material is the paper processed by heat sealability resin lamination.Adopt this structure, even if when using for a long time stop after battery discharge, discharge again etc., electrolyte also can be prevented to be seeped into outside.In addition, by making the ratio of paper more than 50%, be easy to carry out sorting by each communal regulation as waste paper etc., discard and easily obtain.
Preferred described sheet material across covering described metal pole with gap, and possesses the part that bends described sheet material integratedly and is horizontally through described gap and supports the supporting kink of described metal pole.Adopt this structure, the so simple structure of bending can be carried out by a part for the exterior body formed the sheet material containing paper and come bearing metal pole, amount and the weight reduction of electrolyte can be guaranteed again.
Preferred described supporting kink keeps described metal pole in the position leaving described air pole.Adopt this structure, due to reliably metal pole and air pole can be separated, so interpolar can be kept to have enough electrolyte.
In addition, described supporting kink also can have the first kink of bending towards described metal pole from the wall portion being positioned at the wall portion of described air pole side and the opposition side of described air pole relative to the described metal pole described sheet material and from the front end bending of described first kink and the second kink abutted with described metal pole.Adopt this structure, bearing metal pole can be come with simple bending structure.
In addition, also can like this: described first kink had both been located at the top more top than the liquid level of the electrolyte in described exterior body, was set as again and oliquely downward tilted towards described metal polar region.Adopt this structure, not only make electrolyte be difficult to externally leak by the first kink, and the electrolyte of the lower surface being attached to the first kink can be made effectively to return.
In addition, also can like this: described metal has the tab portion projected upwards, and described supporting kink is extended in the width of whole described metal pole, on the Width of described metal pole, described supporting kink with the boundary line between described tab portion and the non-tab portion that there is not described tab portion for benchmark is divided, the described metal pole of one of the cutting part of described tab portion side and the cutting part of described non-tab portion side restriction is to the movement of air pole side, and another cutting part limits the movement of described metal pole to the opposition side of air pole.Adopt this structure, can avoid tab portion again can with the movement of each cutting part restriction metal pole of supporting kink to air pole side and opposition side.
In addition, described exterior body also can have the base plate being bent into the downward protrusion shape that the lower end for described metal pole embeds.Adopt this structure, can position with the lower end of simple bending structure to metal pole and prevent dislocation.
In addition, also can like this: described supporting kink has return portion, its not only from the wall portion of the opposition side of the wall portion of described air pole side and described air pole along described metal pole to lateral buckling in exterior body but also to the opposition side bending inside this exterior body, and be also projected into outside exterior body than described metal pole, clamp described metal pole by a part for each return portion, and the part be projected into outside exterior body of remainder is bonded with each other with between shutoff return portion.Adopt this structure, can prevent electrolyte from evaporating or spilling and can prevent exterior body to be out of shape, and can also prevent metal pole from misplacing.
In addition, described exterior body also can have thin slice, and it is connected with the cap covered above described metal pole and engages with the sidewall portion covering side, described metal pole.Adopt this structure, electrolyte can be suppressed to evaporate or spill and can exterior body be prevented further to be out of shape by simple structure.
In addition, possess as the sheet material containing paper and be bent into the base piece portion of the downward protrusion shape that the lower end for described metal pole embeds, at least one party of the front and back pair of end portions in described base piece portion engages with the sheet material for the formation of described exterior body.Adopt this structure, can prevent metal pole from misplacing and can prevent again metal pole from scratching exterior body.
In addition, also can like this: the sheet material for the formation of described exterior body is bent into upwards uncovered concavity and forms the base plate of described exterior body, described base piece portion has a pair rising portion, the lower end of described metal pole is embedded between described a pair rising portion, wherein, under the state that the sheet material for the formation of described exterior body is plane expansion, when at least one party of the front and back pair of end portions in described base piece portion and this sheet material are bonded into, across the state of described base plate, this sheet material are bent into upwards uncovered concavity, described a pair rising portion with described bottom parts from mode hold up inside exterior body.Adopt this structure, can easily assembling plate sheet portion.
In addition, also can like this: the face of the opposition side of the described air pole in described metal pole arranges electrolyte host body, and it is for accommodating by injecting water in described exterior body as battery operated electrolyte.Adopt this structure, be not only the solvent only adding electrolyte and just can be used as battery, the corrosion of the metal pole of causing by electrolytical impact can also be prevented.
In addition, described electrolyte host body also can have as the sheet material containing paper and the pole plate installation sheet be arranged on the face of the opposition side of the described air pole of described metal pole and engage to accommodate described electrolytical bag with described pole plate installation sheet.Adopt this structure, can not only suppress with sheet material the corrosion of metal pole that causes by electrolytical impact, and without the need to being arranged on exterior body and the structure that is easy to simplify exterior body by being used for accommodating electrolytical bag, the installation exercise of bag also easily carries out in addition.
In addition, also can be that the crimping of described pole plate installation sheet is fixed on described metal and extremely goes up, described bag welding be on described pole plate installation sheet.Adopt this structure, the installation of pole plate installation sheet and bag becomes easy.
In addition, also can like this: described pole plate installation sheet has and a part for this sheet carried out bending to limit the limiting unit of described metal pole relative to this sheet movement, by described pole plate installation sheet is remained on described exterior body, described metal pole is remained on described exterior body.Adopt this structure, without the need to arranging the structure being used for directly keeping metal pole on exterior side, be easy to the structure simplifying exterior body.
In addition, described sheet material both across gap cover described metal pole and also at least inner surface side formed liquid-impermeable, described exterior body is provided with the peristome installing described air pole from outer surface side, and the end face of described peristome is implemented end face processing and soaks into prevent being injected into inner electrolyte.Adopt this structure, adopt and just can prevent electrolyte from soaking into from the end face of peristome by the structure of the sheet material formation exterior body containing paper, thus exterior body intensity can be avoided to decline or degraded appearance.
As described end face processing, the end face of described peristome can be turn back toward the outer side in the edge of described sheet material.Adopt this structure, can prevent by the straightforward procedure that bending sheet materials is such electrolyte from affecting peristome.
In addition, as described end face processing, the end face of described peristome can be covered by the liquid-impermeable material of sheet.Adopt this structure, the covering performance corresponding to film performance can be obtained.By using the film widely circulated, being easy to reduce costs, and selecting required covering performance by selected film.
In addition, also can, at liquid-impermeable material described in two surface mount of described sheet material, described liquid-impermeable material be made to be engaged with each other to cover described end face.Adopt this structure, this laminated film can be utilized to cover when two surface of laminate.
In addition, also described end face can be encased to cover described end face with described liquid-impermeable material.Adopt this structure, the coverage mode of the end face encasing peristome can be obtained, be easy to prevent electrolyte from soaking into from end face.
In addition, the end face of described peristome can be implemented the described end face processing of dipping hydrophobe medicament.Adopt this structure, can adopt and utilize the method for medicament to prevent electrolyte from soaking into from the end face of peristome.
In addition, as described end face processing, also from described sheet material to described air pole entirety coating hot solvent, the end face of described peristome can be covered by described hot solvent.Adopt this structure, the surface unevenness profile of air pole can be effectively utilized and improve the bond strength of the hot solvent playing covering effect.
In addition, as described end face processing, also from described sheet material to the liquid-impermeable material of the overall pasted sheet-shaped of described air pole, the end face of described peristome can be covered by described liquid-impermeable material.Adopt this structure, the surface unevenness profile of air pole can be effectively utilized and improve the bond strength of the film playing covering effect.
In addition, described liquid-impermeable material can be one-piece type frame-shaped extended in the edge of whole described peristome.Adopt this structure, compared with the situation of pasting liquid-impermeable material with the edge at each peristome, number of components can be reduced and disposablely can complete sticking operation again.
In addition, described liquid-impermeable material also can be formed in the mode of frame-shaped extended in the edge of whole described peristome and connect the liquid-impermeable material of multiple oblong-shaped.Adopt this structure, be easy to when cutting from the thin film raw material of liquid-impermeable material reduce clout, but also be easy to corresponding various shape.
In addition, described metal pole does not form passive state overlay film, the oxide that produced by the cell reaction after injecting electrolyte and be formed with the metal pole of passive state overlay film on surface on its surface injecting before electrolyte, there is described metal pole and the described metal-air cell of described air pole have in order under removing state that described passive state overlay film is not connected load, optionally form the closed circuit circuit comprising described metal pole and described air pole.Adopt this structure, formed and comprise the passive state overlay film that the closed circuit of negative pole and positive pole and removing are formed in negative pole (metal pole) surface of metal-air cell, negative pole (metal pole) surface can be regenerated, be easy to again start to carry out cell reaction.
Described circuit also can be the open and close type short circuit current be located between described negative pole and described positive pole.Adopt this structure, be easy to again start to carry out cell reaction by simple structure.
In addition, described circuit also can be the open and close type conductive discharge circuit be located between described negative pole and described positive pole.Adopt this structure, be easy to again start to carry out cell reaction by simple structure.
Now, the circuit brake switch of described conductive discharge circuit also can be the current value flowed in the circuit when exceeding setting be switch opens.Adopt this structure, being not only easy to protective circuit etc. can not also carry out switch opens operation.Discharged power loss can also be reduced.
In addition, also can like this: be connected in series with the multiple unit cells comprising described negative pole and described positive pole, between the described negative pole described circuit being located at the two ends of the battery pack be made up of described multiple unit cells and described positive pole.Adopt this structure, with arrange the situation of open and close type short circuit current in each unit cells compared with, can not only be easy to that big current is flowed can also reduce number of components.
In addition, the current detecting part for detecting the current value in described closed circuit middle flowing also can be set.Adopt this structure, the passive state overlay film that can judge whether to remove negative pole (metal pole) surface being formed in metal-air cell and the information that can regenerate negative pole (metal pole) surface can be obtained.
Now, described current detecting part also can be and makes described circuit in the circuit of open circuit according to the current value detected.Adopt this structure, not only operate without the need to the user carried out for switching to open circuit but also discharged power loss can also be reduced.
In addition, the integrating electric test section for detecting the integrating electric value in described closed circuit middle flowing also can be set.Adopt this structure, the passive state overlay film that can judge whether to remove negative pole (metal pole) surface being formed in metal-air cell and the information that can regenerate negative pole (metal pole) surface can be obtained.
Now, described integrating electric test section also can be and makes described circuit in the circuit of open circuit according to the integrating electric value detected.Adopting this structure, not only can also reduce discharged power loss without the need to the user's operation carried out for switching to open circuit.
Also can arrange for detect from described closed circuit the time detecting portion in elapsed time.Adopt this structure, the passive state overlay film that can judge whether to remove negative pole (metal pole) surface being formed in metal-air cell and the information that can regenerate negative pole (metal pole) surface can be obtained.
Now, described time detecting portion also can be and makes described circuit in the circuit of open circuit according to the elapsed time detected.Adopting this structure, not only can also reduce discharged power loss without the need to the user's operation carried out for switching to open circuit.
In addition, described negative pole can be formed by the magnesium alloy at least containing zinc.Adopt this structure, when being difficult to again start to carry out cell reaction after making in the impact because of zinc battery stop, being easy to again start to carry out cell reaction.
In addition, the feature of metal-air cell unit of the present invention is, multiple described metal-air cell separates makes the gap of air trapping be housed in outer container, and the side surface part of described outer container has and is projected in described gap to support the tab of described exterior body.Adopt this structure, the tab due to the side surface part being located at outer container is projected into support described exterior body in described gap, so the exterior body of metal-air cell can be suppressed to expand to prevent the output of battery from declining.
In addition, described tab also can be spaced apart and arrange multiple at above-below direction in the side surface part of described outer container.
In addition, also can dividing plate be set between described metal-air cell and described tab is locked on described dividing plate.
In addition, also can like this: described dividing plate is the dividing plate of stereo structure, and central portion has the delay portion making air trapping, the both sides in this delay portion have makes air pole opposed and pit part for arranging metal-air cell.
In addition, described dividing plate also can be that spatially shape is formed by a sheet corrugated board bending.
In addition, also members of frame can be set in the side of described exterior body, described air pole is set at the peristome of this members of frame, support described members of frame by described tab.This outer container can be made of paper, also can be resin-made.
In addition, also can like this: described tab cuts open reservations via a part and links with the side surface part of described outer container, described in cut open reservations and cut open and be projected in described gap to support described air pole.
Invention effect
In the present invention, it is characterized in that not only having there is air pole but also exterior body for accommodating the metal pole opposed with described air pole is formed by the sheet material containing paper.Adopt this structure, low cost, lightweight and be easy to discarded.
In addition; by being located at the open and close type short circuit current between metal pole and air pole, easily can removing and be formed in the extremely surperficial passive state overlay film of metal (sometimes claiming " protection overlay film " in aftermentioned explanation) and be restored to the state being easy to again start to carry out cell reaction.
Accompanying drawing explanation
Fig. 1 is the figure of the magnesium air cell of the first execution mode representing metal-air cell.
Fig. 2 is the figure of magnesium air cell, Fig. 2 (A) is rearview, and Fig. 2 (B) is vertical view, and Fig. 2 (C) is right view.
Fig. 3 is the figure of the exterior body of expansion first execution mode.
Fig. 4 is the IV-IV profile of Fig. 1.
Fig. 5 is the V-V profile of Fig. 1.
Fig. 6 is the profile of the first embodiment schematically showing peristome end face processing.
Fig. 7 is the figure of the second embodiment representing peristome end face processing, Fig. 7 (A) is the profile schematically showing the second embodiment, and Fig. 7 (B) is figure when representing that the outer surface of exterior body is laminated.
Fig. 8 is the profile of the 3rd embodiment schematically showing peristome end face processing.
Fig. 9 (A) ~ Fig. 9 (D) is that schematically order represents the profile of the 4th embodiment of peristome end face processing chronologically.
Figure 10 is the profile of the 5th embodiment schematically showing peristome end face processing.
Figure 11 is the profile of the 6th embodiment schematically showing peristome end face processing.
Figure 12 is the profile of the 7th embodiment schematically showing peristome end face processing.
Figure 13 is the profile of the 8th embodiment schematically showing peristome end face processing.
Figure 14 is the figure that the film that the 8th embodiment is used is described, Figure 14 (A) be the figure representing one-piece type film, Figure 14 (B) is the figure representing separation type film.
Figure 15 is the stereogram of the exterior body of the second execution mode.
Figure 16 is the figure of the exterior body of expansion second execution mode.
The front view of Figure 17 to be the figure of the second execution mode, Figure 17 (A) be exterior body, Figure 17 (B) is the A-A profile of Figure 17 (A).
Figure 18 is the local expansion figure of the variation of the second execution mode, Figure 18 (A) be the figure being formed longer by upper plate portion and arrange a handles, Figure 18 (B) is the figure being formed longer by upper plate portion and arrange two handles.
The front view of Figure 19 to be the figure of the exterior body of the 3rd execution mode, Figure 19 (A) be exterior body, Figure 19 (B) is the B-B profile of Figure 19 (A).
Figure 20 is the stereogram in the base piece portion of the 3rd execution mode.
Figure 21 is the stereogram of the magnesium air cell of the 4th execution mode.
Figure 22 is the sectional side view of the magnesium air cell of the 4th execution mode.
Figure 23 is the figure of the 4th execution mode, Figure 23 (A) is the stereogram observing electrolyte host body and magnesium pole from air pole side together, and Figure 23 (B) is the stereogram observed from the opposition side of air pole.
Figure 24 is the sectional side view of the magnesium air cell of the variation of the 4th execution mode.
Figure 25 is the figure of the variation of the 4th execution mode, Figure 25 (A) is the stereogram observing electrolyte host body and magnesium pole from air pole side together, and Figure 25 (B) is the stereogram observed from the opposition side of air pole.
Figure 26 is the sectional side view of the magnesium air cell of the 5th execution mode.
Figure 27 is the stereogram of the exterior body of the 5th execution mode.
Figure 28 is the figure of the 5th execution mode, Figure 28 (A) is the figure launching exterior body, the figure in Figure 28 (B) to be the figure in the X region being equivalent to Figure 27, Figure 28 (C) be Y region being equivalent to Figure 27, Figure 28 (D) is the figure in the Z region being equivalent to Figure 27.
Figure 29 is the stereogram of the execution mode representing metal-air cell unit.
Figure 30 is the stereogram of the execution mode representing metal-air cell unit.
Figure 31 represents the dividing plate of metal-air cell unit and the stereogram of peripheral structure together.
Figure 32 is the stereogram of dividing plate monomer.
Figure 33 is the vertical view of dividing plate monomer.
Figure 34 is the end view of dividing plate monomer.
Figure 35 is the profile being equivalent to the I-I line shown in Figure 36 of magnesium air cell.
Figure 36 is the top partial perspective view before the exterior body top of magnesium air cell is bent.
Figure 37 is the expanded view of dividing plate.
Figure 38 is the expanded view of outer container.
Figure 39 is the stereogram of other embodiments representing metal-air cell unit.
Figure 40 is the stereogram of other embodiments representing metal-air cell unit.
Figure 41 is the figure of the structure of the first execution mode representing metal-air battery system.
Figure 42 is the figure of the variation of the metal-air battery system representing the first execution mode.
The figure of Figure 43 to be the figure of metal-air battery system, Figure 43 (A) be structure of the second execution mode representing metal-air battery system, Figure 43 (B) is the figure of the variation representing the second execution mode.
Figure 44 is the figure of other variation of the metal-air battery system representing the second execution mode.
The figure of Figure 45 to be the figure of metal-air battery system, Figure 45 (A) be structure of the 3rd execution mode representing metal-air battery system, Figure 45 (B) is the figure of the structure of the 4th execution mode representing metal-air battery system.
Figure 46 is the figure of the structure of the 5th execution mode representing metal-air battery system.
Figure 47 is the figure of the structure of the 6th execution mode representing metal-air battery system.
Description of reference numerals
1 metal-air cell unit
10 magnesium air cells (metal-air cell)
10A battery pack,
10S metal-air battery system
11 exterior bodies
13 air pole
The tab portion of 13T air pole
15 magnesium poles (metal pole)
The tab portion of 15T metal pole
21 base plate
22 front wall portions
22K peristome
23 rear wall parts
24F, 24R sidewall portion forms sheet (sidewall portion)
25F, 25R upper plate portion forms sheet (supporting kink, cap)
25F1,2,5R1 first kink
25F2,2,5R2 second kink (return portion)
25F3,25R3 the 3rd kink (return portion)
25X tab portion side cutting part
25Y non-tab portion side cutting part
26F, 26R thin slice
35 base piece portions
41 electrolyte host bodies
42 pole plate installation sheets
42B fitting portion (limiting unit)
Fitting portion (limiting unit) on the upside of 42C
43 bags
81 (81A, 81B) tab
100 punching sheets
101 sheet materials
121,122,125,131 films (liquid-impermeable material)
210 outer containers
220,270 corrugated paper paperboards
230 dividing plates
232K air pole peristome
244 members of frame
250 pit parts (battery container portion)
251 floating support portions
260 delay portions (gap for air trapping)
300 DC-DC conversion equipments (power inverter)
331 short circuit currents
333 conductive discharge circuit
333S circuit brake switch
335 integrating electric test sections
337 time detecting portions
SF, SR gap
MX hydrophobe medicament
HX hot solvent
The liquid level of UL electrolyte
Embodiment
Hereinafter, with reference to the accompanying drawings of an embodiment of the invention.
(the first execution mode)
Fig. 1 is the figure of the magnesium air cell of the first execution mode representing metal-air cell of the present invention.
Magnesium air cell 10 has the exterior body (also referred to as basket) 11 of the hollow box shape formed by the sheet material bent freely (acceptance of the bid such as Fig. 6 below drawings attached marks 101).Exterior body 11 is not only provided with air pole 13 but also contain the magnesium pole (metal pole) 15 opposed with air pole 13.This magnesium air cell 10 is air pole 13 primary cells that magnesium pole 15 plays a role as negative pole as positive pole.
The all directions such as up and down shown in Fig. 1 and aftermentioned each figure correspond to all directions when magnesium air cell 10 being used as battery, are same as all directions used in following explanation.
Fig. 2 is the figure representing magnesium air cell 10, Fig. 2 (A) is rearview, and Fig. 2 (B) is vertical view, and Fig. 2 (C) is right view.Exterior body 11 is formed as slim rectangular shape, the upper plate portion 25 integrally having the base plate 21 of the bottom surface forming exterior body 11, form the front wall portion 22 of front surface, form the rear wall parts 23 (Fig. 2) of rear surface, form the sidewall portion (left wall, right wall portion) 24 on the first from left right side of left and right side, form upper surface.
Front wall portion 22 and rear wall parts 23 are faces of same shape, are configured to be parallel to each other, and form face maximum among exterior body 11.Front wall portion 22 is provided with the peristome 22K (with reference to aftermentioned Fig. 3) for installing (bonding) air pole 13
The structure of air pole 13 is: after the raw material being mixed with carbon and Teflon (registered trade mark) being processed into the sheet of specific thickness with roll squeezer etc., with stipulated time, set point of temperature drying, burn till, oppress (extruding) by being cut into the sheet roughly equal with copper mesh size clamp on rectangle (except tab portion 13T) described copper mesh (copper wire netting) from two surfaces, reusable heat welding or bonding agent etc. are bonded on the peristome 22K of exterior body 11, and air pole 13 has gas permeability and non-permeable (being equivalent to liquid-impermeable).That is, described flaky raw material have extraneous air can be made to pass into exterior body is inner and the electrolyte of exterior body 11 inside can not arrive the non-permeable of outside thoroughly.In addition, air pole 13 widely can be suitable for known features.
Magnesium pole 15 is configured to be parallel to air pole 13 between front wall portion 22 and rear wall parts 23, in the position leaving each wall portion 22,23.In addition, air pole 13 is also parallel with rear wall parts 23 relative to front wall portion 22 with magnesium pole 15.Under the battery using state shown in Fig. 1, each air pole 13, magnesium pole 15 configure along vertical.
Air pole 13 is provided with the tab portion 13T projected upwards, and not shown positive pole distribution is connected with this tab portion 13T.Ni system or copper plates parts can be used as tab portion 13T, join the copper mesh of air pole 13 by methods such as welding to.This tab portion 13T is projected into the more top of the upper plate portion 25 of exterior body 11, easily can connect positive pole distribution from top.
In addition, be also provided with the tab portion 15T projected upwards in magnesium pole 15, not shown negative pole distribution is connected with this tab portion 15T.
The tab portion 15T of magnesium pole 15 and magnesium pole 15 are set as one and are projected into the more top of exterior body 11.That is, magnesium pole 15 magnesium pole main part (metal pole main part) 15A (with reference to aftermentioned Fig. 4), the tab portion 15T that projects upwards with same thickness from magnesium pole main part 15A integratedly with rectangular plate-like.
In addition, as shown in Figure 1, the Width of the tab portion 15T of magnesium pole 15 in magnesium pole 15 is located at end side (left end side) partially.In addition, the tab portion 13T of air pole 13 is located at the position of being also partial to another side of Width (the right-hand member side in Fig. 1) than the tab portion 15T of magnesium pole 15.Like this, main apparent time (Fig. 1) each tab portion 15T, 13T are configured to not overlapping.
Upper plate portion 25 plays the effect of the coating member of the top of the inner space covered between the sidewall portion 24 being formed in front wall portion 22, rear wall parts 23, the first from left right side.This upper plate portion 25 covers the upper surface of magnesium pole main part 15A but makes tab portion 15T reveal outside.In addition, upper plate portion 25 is provided with the pair of right and left hole portion 25H as electrolyte (being salt solution in this structure) inlet.Each hole portion 25H be equivalent to along circular arc can the inner peripheral portion of gap, for the front end of injecting the injection bottle of electrolyte by compress can gap inner side and open each hole portion 25H and inject the electrolyte into inside.Now, electrolyte injects from a certain hole portion, and other hole portions are as airport.In addition, the pair of right and left hole portion 25H as described electrolyte inlet also can be above two multiple, and in addition, it also can be triangle or quadrangle etc., not particular determination that the shape of hole portion 25H is not only circular arc.In addition, when multiple hole portion 25H is set, as long as to major general one place as airport, such as, when three holes portion 25H is set, by using two as liquid injection port, one as airport, just can shorten the fluid injection time.
As mentioned above, owing to being provided with multiple hole portion 25H in this structure, what therefore can make other when injecting electrolyte from one plays the effect making the air in exterior body 11 be discharged to outside airport.In addition, compared with the situation of single hole portion 25H is set, effectively can be discharged to outside by resulting from during cell reaction inner gas.That is, the one side of above described holes portion 25H plays electrolyte inlet, plays the effect of airport and steam vent on the other hand.
Like this, owing to being provided with by can the hole portion 25H that optionally opens of gap, thus can before battery uses maintenance closed condition and prevent the foreign matters such as dust from entering.
Further, the exterior body 11 of this structure can guarantee amount and the weight reduction of electrolyte with simple structure support magnesium pole 15.
First, this exterior body 11 is made up of the sheet material (acceptance of the bid such as Fig. 6 below drawings attached marks 101) containing paper.Be more specifically that this sheet material can with the paper adopting at least inner surface of heat sealability resin (such as polyethylene (PE)) to be laminated processing, i.e. available laminated paper.Therefore, inner surface side is formed liquid-impermeable, and it is outside that electrolyte cannot drain to (leak to), in addition, compared with using the situation of metal can or resin container, and lightweight and low price.Further, two surfaces in the table of sheet material also can be used to be laminated two superficial layer platens of processing.
In addition, the sheet material of the paper containing this structure is that paper and heat sealability resin are composited through lamination process etc.As the ratio of the paper in sheet material, preferably greater than 50%.The exterior body 11 of this structure, by making the ratio of paper more than 50%, can be discarded as waste paper.
As described later, exterior body 11 can be made by the punching sheet 100 sheet material being punching into regulation shape.The intensity that described punching sheet 100 is different according to the deflection (being equivalent to the intensity of paper) of so-called paper and meet needed for the rear exterior body 11 of assembling.In other words, the exterior body 11 with desirable strength can be made by the thickness of adjustment punching sheet 100, the length of paper fiber contained and the material of paper fiber etc.In addition, the state be bent can be kept by the deflection adjusting paper, form sheet 25F, 25R by a pair, aftermentioned front and back upper plate portion and also can obtain the intensity kept needed for magnesium pole 15.
Be more specifically, as paper, preferably can use coated board, without the larger material of the intensity that coated board, cardboard, mill bristol etc. are thicker.In addition, the cupstock being compounded with paper and heat sealability resin in advance or wrapping paper body paper etc. can also preferably be used.
In addition, as heat sealability resin, its can with sheet material thermal welding and engage and formed can the box-shaped of sealing liquid, although as long as can thermal welding can optional resin, preferably use the polyolefin-based resins such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer.For obtaining enough thermal welding states, the thickness of heat sealability resin is at least 10 μm, preferably more than 20 μm.Especially as the face of the medial surface of exterior body 11, for more guaranteeing that its sealing preferably adopts the thickness of more than 40 μm.
In addition, as sheet material, also can other films stacked etc. as required.Such as giving sheet material with intensity, can stacked pet resin (PET), polyamide (Ny), o-phenyl phenol (OPP) film.Polyamide film has good anti-dot punch characteristic and preferably uses.In addition, these films can give sheet material good printing adaptability by being layered in the outer surface side of sheet material.That is, sheet material, when printed patterns or word etc., although directly can print on paper, prints in advance when being layered on paper again and can give beautiful pattern or word etc. to sheet material on PET or OPP.
Heat sealability resin also can be that other films are fitted in respectively on paper and form, can also be layered on paper again after making heat sealability resin and other pellicular cascades in advance, or the mixing extrusion film that squeezes out heat sealability resin and other mixed with resin of can also fitting be stacked again.
The sheet material comprising paper of the present invention need have required intensity.Be specially, preferably use rigidity (abrasion resistance) (according to JIS-P 8125 " paper and paperboard-stiffness test method " in (direction of the paper parallel with the direct of travel of paper machine, MD direction; MD=machine direction) be 5 ~ 30mNm, in (the direction of the paper at a right angle with the direct of travel of paper machine, CD direction; CD=cross direction) be the material of 2 ~ 15mNm.Rigidity (abrasion resistance) by changing the kind of the thickness of paper or density, stacked heat sealability resin or other films, thickness adjusts.
In addition, when rigidity (abrasion resistance) is less than described value, be difficult to because of undercapacity keep the shape as battery exterior body.In addition, when being greater than described value, be difficult to because intensity is excessive carry out the operations such as bending process.
Because by heat sealability resin extruded to paper, the method for lamination is comparatively easy again, therefore preferably use the method to come stacked described paper and heat sealability resin, but also stackedly can employ other known laminating methods such as the dry lamination method of dry lamination bonding agent.The stacked of PET, Ny, OPP also can adopt known laminating method, and general employing employs the dry lamination method of bonding agent or accompany the sandwich of layers platen press etc. of heat sealability resin.
Represent the concrete example of the Rotating fields of described sheet material below.
(1) PE/ paper/PE
(2) PE/ paper/PE/ (PE/Ny/PE) note: be mixing extrusion film in ()
(3) PET/PE/ paper/PE
Such making exterior body 11: make the punching sheet 100 above-mentioned sheet material being punching into regulation shape and bend this punching sheet 100 again.Now, preferably to the position likely contacting aftermentioned electrolyte in the end face after cutting, carry out preventing electrolyte from immersing the end face processing of sheet material.As end face processing, the method covering end face at end face coating hot solvent or bonding agent can be adopted, or the method etc. of sticking film separately can be adopted.
Fig. 3 is the figure representing punching sheet 100, is equivalent to the figure launching exterior body 11.In addition, illustrating for ease of understanding, in Fig. 3, representing folding line with single dotted broken line.In addition, Fig. 4 is the IV-IV profile of Fig. 1, and Fig. 5 is the V-V profile of Fig. 1.
As shown in Figure 3, punching sheet 100 has all-in-one-piece rectangular bottom plate portion 21, the rectangular front wall portion 22 be connected with the leading edge 21A (being equivalent to folding line) of base plate 21, the rectangle rear wall parts 23 that is connected with the trailing edge 21B (being equivalent to folding line) of base plate 21.As shown in Figure 4 and Figure 5, with the leading edge 21A of this base plate 21 and trailing edge 21B for benchmark, made by bending front wall portion 22 and rear wall parts 23 front wall portion 22 and rear wall parts 23 erect and be located in base plate 21.As shown in Figure 3, front wall portion 22 is provided with the peristome 22K for installing air pole 13, and this peristome 22K is such as gone out by punching while making punching sheet 100 by punching.
As shown in Figure 4 and Figure 5, base plate 21 is with folding line 21C (Fig. 3) V-shaped for protruding downwards when benchmark is bent to form side-looking by being divided into two parts (this structure is for dividing equally) before and after base plate 21.Magnesium pole 15 is placed in this base plate 21.Like this, the lower end of magnesium pole 15 is embedded the part 21T protruded downwards by base plate 21 inclined lead, can easily position the lower end of magnesium pole 15.In addition, magnesium pole 15 and air pole 13 suitably keep standoff distance by the part 21T that protrudes and aftermentioned first kink 25F1,25R1 downwards, can easily adjust described standoff distance by changing the distance of folding line 21C, 22C, 23C.
As shown in Figure 3, punching sheet 100 has that pair of right and left sidewall portion that all-in-one-piece is connected with the left and right lateral margin 22S (being equivalent to folding line) of front wall portion 22 forms sheet 24F, the pair of right and left sidewall portion that is connected with the left and right lateral margin 23S (being equivalent to folding line) of rear wall parts 23 forms sheet 24R.In addition, form sheet 24F, 24R by these sidewall portions and form the sidewall portion 24 on the first from left right side.
It is described in detail in detail, each sidewall portion forms the lengthwise rectangle extended separately up and down that sheet 24F, 24R are formed as at whole front wall portion 22 and rear wall parts 23, with left and right lateral margin 22S, 23S of front wall portion 22 and rear wall parts 23 for the benchmark bending that (is equivalent to the inner side of exterior body 11) to the inside.In addition, it is benchmark (outside of exterior body 11) bending laterally that each sidewall portion forms sheet 24F, 24R each formation sheet about 24F, 24R to be divided into folding line 24C, 24D of two parts (this structure is for dividing equally), and what bend laterally is engaged by thermal welding between outside bent sheet 24FS, 24RS.After joint, outside bent sheet 24FS, 24RS are bent into the inner side bent sheet 24FU, the 24RU that are close to and bend to the inside, form sidewall portion 24 like this.
Now, make outside bent sheet 24FS, 24RS engage inner side bent sheet 24FU, 24RU by thermal welding, also outside bent sheet 24FS, 24RS can be made to be close to inner side bent sheet 24FU, 24RU with alite pastes such as adhesive tapes.Like this, energy assembling plate portion 21, front wall portion 22, rear wall parts 23 and left and right sides wall portion 24.In addition, in Fig. 4, Reference numeral 24L is formed in the downward protuberance at the two ends of the base plate 21 of exterior body 11, and this downward protuberance 24L is equivalent to the bottom that sidewall portion forms the inner side bent sheet 24FU of sheet 24F.
In addition, as shown in Figure 3, punching sheet 100 has that upper plate portion that all-in-one-piece is connected with the upper limb 22A (being equivalent to folding line) of front wall portion 22 forms sheet 25F, the upper plate portion that is connected with the upper limb 23A (being equivalent to folding line) of rear wall parts 23 forms sheet 25R.In addition, form sheet 25F, 25R by this pair upper plate portion and form upper plate portion 25.
It is described in detail in detail, and each upper plate portion forms the rectangle of growing crosswise (the plate shape that broad ways extends) that sheet 25F, 25R are formed as extended separately in the width of whole front wall portion 22 and rear wall parts 23.In addition, as shown in Figure 4 and Figure 5, each upper plate portion forms sheet 25F, 25R and bends for benchmark (is equivalent to the inner side of exterior body 11) to the inside with upper limb 22A, 23A of front wall portion 22 and rear wall parts 23, and with each formation sheet 25F, 25R are divided into up and down two-part folding line 22C, 23C (Fig. 3) for benchmark more to the inside (inner side of exterior body 11) bending, during in side-looking (Fig. 4, Fig. 5) roughly L-shaped bend.
As shown in Figure 4 and Figure 5, each upper plate portion formation sheet 25F, 25R have: first kink 25F1, the 25R1 bent towards magnesium pole 15 from front wall portion 22 and rear wall parts 23 both sides; Bend from the front end (being equivalent to folding line 22C, 23C) of first kink 25F1,25R1 and abut second kink 25F2,25R2 of magnesium pole 15, by the top of their supporting magnesium pole 15.
Be more specifically, the upper plate portion of rear wall parts 23 forms the Width of sheet 25R in magnesium pole 15, having in the position of both side edges of the tab portion 15T corresponding to magnesium pole 15 can gap K (with reference to figure 3), accordingly with the boundary line between tab portion 15T and the non-tab portion that there is not tab portion 15T for benchmark is divided into tab portion side cutting part 25X and non-tab portion side cutting part 25Y.In addition, as shown in Figure 4, at tab portion side cutting part 25X, the first kink 25R1 is formed as the length of the rear surface MR extending to magnesium pole 15 from rear wall parts 23, and the second kink 25R2 abuts the rear surface MR of magnesium pole 15 by bending downwards.Like this, upper plate portion forms sheet 25R and builds bridge between the rear surface MR and rear wall parts 23 of magnesium pole 15, forms sheet 25R restriction rear wall part 23 side, magnesium pole 15 move (moving to the side in contrast to air pole 13 place) by upper plate portion.
In addition, as shown in Figure 5, at non-tab portion side cutting part 25Y, the first kink 25R1 strides across magnesium pole main part 15A, and the second kink 25R2 is bent into and abuts with the front surface MF of magnesium pole 15.Like this, upper plate portion forms sheet 25R and builds bridge between the front surface MF and rear wall parts 23 of magnesium pole 15, forms sheet 25R restriction magnesium pole 15 move (moving to air pole 13 side) wall portion 22 side forward by upper plate portion.Like this, the upper plate portion of rear wall parts 23 form sheet 25R limit magnesium pole 15 forwards, backwards both sides move.
In addition, as shown in Figure 4 and Figure 5, form sheet 25F in the upper plate portion of front wall portion 22, the first kink 25F1 is formed as the length of the front surface MF extending to magnesium pole 15 from front wall portion 22.In addition, the second kink 25F2 consists of the front surface MF of the second kink 25R2 abutting magnesium pole 15 of sheet 25F via the upper plate portion of rear wall parts 23 bending downwards.Like this, build bridge between the front surface MF and front wall portion 22 of magnesium pole 15, form sheet 25F restriction magnesium pole 15 by upper plate portion and move (moving to air pole 13 side) wall portion 22 side forward.
Like this, the upper plate portion of front wall portion 22 and rear wall parts 23 forms sheet 25F, 25R both sides play the supporting kink of supporting magnesium pole 15 effect by a part for bending sheet materials.
The number of assembling steps of magnesium air cell 10 is then described.
First the punching sheet 100 be made up of the sheet material containing paper is prepared.Afterwards with the leading edge 21A of base plate 21 and trailing edge 21B for this punching sheet 100 folding twice makes front wall portion 22 and rear wall parts 23 erect setting by benchmark, and the left and right sides wall portion bending front wall portion 22 and rear wall parts 23 forms sheet 24F, 24R, is undertaken engaging and form left and right sides wall portion 24 (the first assembling procedure) by thermal welding.Exterior body 11 can be assembled into the upwards uncovered state in inner space like this.In addition, in this first assembling procedure, the V-shaped (with reference to Fig. 4, Fig. 5) protruded downwards when base plate 21 is bent into side-looking.
Next, from top, magnesium pole 15 is inserted in exterior body 11, makes the lower end of magnesium pole 15 compress the part 21T (Fig. 4, Fig. 5) of the downward protrusion of base plate 21 and position (the second assembling procedure) the lower end of magnesium pole 15.
Next, as shown in Figure 4 and Figure 5, the upper plate portion be connected with rear wall parts 23 is formed sheet 25R bend towards magnesium pole 15 and form the first kink 25R1, and form being equivalent to folding line 23C (Fig. 3) bending downwards of the first kink 25R1 front end the second kink 25R2 (the 3rd assembling procedure) abutted with magnesium pole 15.
Now, as shown in Figure 4, in the upper plate portion formation sheet 25R of rear wall parts 23, tab portion side cutting part 25X bends and abuts rear surface MR under the rear surface MR side direction of magnesium pole 15, moves to limit rear wall part 23 side, magnesium pole 15.In addition, as shown in Figure 5, non-tab portion side cutting part 25Y strides across magnesium pole main part 15A and bends under the front surface MF side direction of magnesium pole 15 and abut front surface MF, moves wall portion 22 side forward to limit magnesium pole 15.
Afterwards, as shown in Figure 4 and Figure 5, the upper plate portion be connected with front wall portion 22 is formed sheet 25F bend towards magnesium pole 15 and form the first kink 25F1, and form the second kink 25F2 (the 4th assembling procedure) being equivalent to folding line 22C (Fig. 3) bending downwards of the first kink 25F1 front end.Because this second kink 25F2 builds bridge between the front surface MF and front wall portion 22 of magnesium pole 15, so restriction magnesium pole 15 is moved (moving to air pole 13 side) wall portion 22 side forward.
Like this, form sheet 25F, 25R the past rear support magnesium pole 15 by a pair, front and back upper plate portion and magnesium pole 15 is positioned, can prevent magnesium pole 15 from misplacing.
In addition, close exterior body 11 by thermal welding, and a pair upper plate portion in front and back forms sheet 25F, 25R and forms sheet 25F, 25R not shown parts (adhesive material such as cover or adhesive tape) each other and interconnected each other by installing from top for engaging upper plate portion.In addition, about air pole 13, can be arranged on exterior body 11 before the first assembling procedure, also can (such as after the 4th assembling procedure) carry out installing (bonding) after exterior body 11 is assembled.Magnesium air cell 10 can be assembled by above step, electrolyte can be injected in exterior body 11 as during battery.
Magnesium air cell 10 after following explanation assembling.
As shown in Figure 4 and Figure 5, the structure of magnesium air cell 10 is, the exterior body 11 be made up of the sheet material containing paper along front and back will and magnesium pole 15 between cover across gap SF, SR, and to cover these gaps SF, SR from top and a pair, front and back upper plate portion to be formed the structure of sheet 25F, 25R bending by the mode being horizontally through this gap SF, SR.
Therefore, the amount of exterior body 11 electrolyte inside can not only be guaranteed and magnesium pole 15 can be kept with the position that simple structure is leaving air pole 13.And, because exterior body 11 is formed by the sheet material containing paper, therefore can alleviate the weight of exterior body 11 or cut down finished cost.
Also have, the critical piece forming magnesium air cell 10 only needs exterior body 11, magnesium pole 15, these three parts of air pole 13 (comprising tab portion 13T), therefore can make that number of components is less, weight that assembling reduction in man-hour and entirety alleviate magnesium air cell 10.
In addition, the top of magnesium pole 15 is formed sheet 25F, 25R supporting by a pair, front and back upper plate portion and lower end is located at the part 21T place of the downward protrusion of base plate 21, so can improve the supporting force of magnesium pole 15 and effectively prevent dislocation.
In addition, for magnesium pole 15, due to the gap SR that can inject electrolyte can be arranged in the opposition side of air pole 13, so there is following advantage: the product generated between magnesium pole 15 and air pole 13 because of exoelectrical reaction (is Mg (OH) in this structure
2: magnesium hydroxide) opposition side of air pole 13 is pushed at any time from the gap SF between air pole 13 and magnesium pole 15, the electrolyte of air pole and opposition side back and forth flows between magnesium and air pole, and therefore exoelectrical reaction is easy to continue to carry out.
In Fig. 4 and Fig. 5, Reference numeral UL represents the liquid level of electrolyte.
A pair, front and back upper plate portion forms sheet 25F, 25R and is positioned at the position more top than the liquid level UL of electrolyte, and first kink 25F1,25R1 that each upper plate portion forms sheet 25F, 25R oliquely downward tilts towards magnesium pole 15.Therefore, the hydrogen that electrolyte produces because of exoelectrical reaction and upwards disperse time, electrolyte flows along the lower surface of first kink 25F1,25R1, can return rapidly and swimmingly accumulate in below electrolyte in.
In addition, first kink 25F1,25R1 of each upper plate portion formation sheet 25F, 25R compresses each other.Therefore, first kink 25F1,25R1 supports each other between front wall portion 22 and rear wall parts 23, not only makes front wall portion 22 and rear wall parts 23 leave but also be easy to maintenance and is parallel to each other.In addition, because the upper surface of first kink 25F1,25R1 connects, so be easy to link first kink 25F1,25R1 each other with adhesive materials such as adhesive tapes.
(raw material about exterior body 11)
As mentioned above, because the exterior body 11 of the magnesium air cell 10 of present embodiment is formed by the sheet material containing paper, so can low cost be realized and lightweight.And, because this sheet material is the paper being able to compound by heat sealability resin through lamination process etc., even if so to stopping after battery discharge, when electric discharge etc. uses for a long time again, also can prevent electrolyte from oozing (leakages) to outside.Also having following advantage: by making the ratio of paper more than 50%, being easy to carry out sorting by each communal regulation as waste paper etc., discard and easily obtain.Therefore, low cost, lightweight and be easy to the superior magnesium air cell 10 such as discarded can be provided.
(supporting structure about metal pole (magnesium pole 15))
But in existing metal-air cell, have and propose following structure: by positive pole, demarcation strip and the negative material that is made up of gel metal, encase with the exterior body that the laminate comprising heat sealability resin bed is shaped, make the cell interior volume occupation rate of negative material more than 40% and less than 90% (such as Japanese Unexamined Patent Publication 2004-288571 publication).
But, the structure that above-mentioned patent documentation is recorded is, stacked and form there is certain thickness power generation element to oxygen diffusion paper, air pole piece, demarcation strip, gelled negative electrode metal, negative pole aggregate, in this power generation element being accommodated, remaining on the pit part that is formed between negative side laminate and side of the positive electrode laminate, therefore there is the problem that number of components is more, the amount of electrolyte is less.
If the amount of electrolyte is few, enough capacity cannot be obtained for the battery consuming electrolyte in exoelectrical reaction.In addition, cannot bearing metal pole (negative pole) for reduce when number of components saves certain power generation element parts (such as demarcation strip), be difficult to reduce number of components.In addition, if number of components is more, causes assembling to increase or weight increase man-hour, be unfavorable for reducing costs.
Consider the problems referred to above, desirable to provide can not only guaranteeing again the amount of electrolyte, lightweight metal-air cell with simple structure support metal pole.
As mentioned above, the exterior body 11 of the magnesium air cell 10 of present embodiment is formed by the sheet material containing paper.This sheet material not only covers magnesium pole (metal pole) 15 across gap SF, SR, and integrally have and a part for sheet material to be bent and a pair upper plate portion played a role as supporting kink being horizontally through gap SF, SR and supporting magnesium pole 15 forms sheet 25F, 25R, therefore can not only carry out the so simple structure support magnesium pole 15 of bending by a part for the exterior body 11 will formed by the sheet material containing paper, amount or the weight reduction of electrolyte can also be guaranteed.In addition, higher gravimetric energy density can be obtained by alleviating the weight of exterior body 11.
Further, due to without the need to the special-purpose member for supporting magnesium pole 15, therefore can reduce number of components, still easily can add the structure of the power generation element beyond magnesium pole 15 in addition.Therefore, be easy to reduce costs and the change degree of freedom of structure is also higher.
In addition, keep magnesium pole 15 because a pair upper plate portion forms the position that sheet 25F, 25R are leaving air pole 13, so magnesium pole 15 and air pole 13 reliably can be separated and interpolar can be kept to have enough electrolyte.In addition, the distance (standoff distance) suitably kept between magnesium pole 15 and air pole 13 is easy to.
In addition, have because each upper plate portion forms sheet 25F, 25R: first kink 25F1, the 25R1 bent towards magnesium pole 15 from the wall portion (rear wall parts 23) being positioned at the wall portion (front wall portion 22) of air pole 13 side and the opposition side of air pole 13 relative to the magnesium pole 15 sheet material (punching sheet 100); Bend with the front end from the first kink 25F1 and 25R1 and abut second kink 25F2,25R2 of magnesium pole 15, so magnesium pole 15 can be supported with simple bending structure.
First kink 25F1,25R1 had both been located at the top more top than the liquid level UL of the electrolyte in exterior body 11, be set as again and oliquely downward tilt towards magnesium pole 15, therefore, do not make electrolyte be difficult to externally leak by means of only first kink 25F1,25R1, and the electrolyte being attached to first kink 25F1,25R1 lower surface can be made effectively to return.
In addition, on the Width of magnesium pole 15, the upper plate portion be connected with rear wall parts 23 forms sheet 25R with the boundary line between tab portion 15T and the non-tab portion that there is not tab portion 15T for benchmark is divided, one of tab portion side cutting part 25X (Fig. 3) and non-tab portion side cutting part 25Y (Fig. 3) restriction magnesium pole 15 is moved to air pole 13 side, another cutting part restriction magnesium pole 15 is moved to the side in contrast to air pole 13 place, therefore, tab portion 15T can form again sheet 25R each cutting part 25X by the upper plate portion be connected with rear wall parts 23 can be avoided, 25Y limits magnesium pole 15 and moves to air pole 13 side and opposition side.
In addition, embed due to exterior body 11 lower end had for magnesium pole 15, be bent into the base plate 21 protruding shape downwards, therefore can position with the lower end of simple bending structure to magnesium pole 15 and prevent dislocation.
(peristome about exterior body)
The exterior body of existing metal-air cell uses metal can or resin container usually.Because this exterior body needs filler or seal for preventing electrolyte leakage, therefore production part increasing number, assembling man-hour or cost increase problem, further, likely because of filler or seal bad or deteriorated and cause electrolyte leakage, exterior body self can become heavy.
In existing metal-air cell, have and propose following structure: by positive pole, demarcation strip and the negative material that is made up of gel metal, encase (such as Japanese Unexamined Patent Publication 2004-288571 publication) with the exterior body that the laminate comprising heat sealability resin bed is shaped, the battery beyond metal-air cell is used to the compound paper vessel (such as Japan Patent No. 4296771 publication) being compounded with exterior body and paper.
But, the structure of the metal-air cell that Japanese Unexamined Patent Publication 2004-288571 publication is recorded is, stacked and form there is certain thickness power generation element to oxygen diffusion paper, air pole piece, demarcation strip, gelled negative electrode metal, negative pole aggregate, in this power generation element is accommodated, remaining on the pit part that is formed between negative side laminate and side of the positive electrode laminate, therefore more, the complex structure of number of components, be unfavorable for reducing costs.
But, if form the exterior body of metal-air cell with the sheet material containing paper, low cost, lightweight and be easy to discarded can be realized.But the exterior body due to metal-air cell has the peristome imported by air via air pole, if so exterior body made of paper, electrolyte likely soaks into from the end of peristome and causes intensity to decline or degraded appearance.
To this, in this configuration, one of object adopts the structure being formed exterior body 11 by the sheet material (punching sheet 100) containing paper, and suppression electrolyte to soak into etc. the impact brought from the end face of the peristome 22K of importing air.
The following describes the end face processing of peristome 22K.
In this configuration, implementing to produce for preventing being injected into inner electrolyte the end face processing soaked into the end face of peristome 22K, avoiding electrolyte soak into from end face and cause exterior body 11 intensity to decline or degraded appearance like this.
Described end face processing is divided into the structure (end face covered structure) of the end face of cover sheets (hereinafter referred to as sheet material 101) self, the structure (air pole utilizes type covered structure) across cover sheets 101 and air pole 13 substantially, the following describes the embodiment of end face processing
(the first embodiment; End face covered structure, mode of turning back)
Fig. 6 is the profile schematically showing the first embodiment.
First, the sheet material 101 forming exterior body 11 forms the double-decker of the ply of paper 102 had containing paper and the internal layer 103 forming laminate layers.Internal layer 103 makes the inner surface side of exterior body 11 be liquid-impermeable, in the present embodiment, by having water proofing property (being equivalent to the resistance to fluidity for electrolyte) and the synthetic resin made membrane of heat sealability is formed.This internal layer 103 uses polyolefin-based resins, polyester based resin etc., especially preferably polyethylene made membrane.
Air pole 13 is installed to the peristome 22K of exterior body 11 from outside, exterior body 11 does not process tab portion 13T and outside being configured in.This air pole 13 has the internal layer 112 of the substrate layer 111 be made up of copper mesh, the inner surface being located at substrate layer 111 and outer surface and the three-decker of outer 113.Internal layer 112 and outer 113 has gas permeability and non-permeable (liquid-impermeable), in the present embodiment, forms mixing polytetrafluoroethylene (PTFE) and carbon black, has the loose structure of multiple fine holes.
As shown in Figure 6, sheet material 101 edge 101A, more specifically for the 101A being positioned at the peripheral part of peristome 22K is turned back laterally.Its angle of turning back is 180 degree.Such edge 101A is overlapping with the outside of the part 101B beyond the 101A of edge, and the interior perisphere of edge 101A is exposed to outside.The internal layer 112 of air pole 13 is exposed to the region overlapping of the internal layer 103 in outside with described and contact, and is engaged by thermal welding.Like this, the gap between air pole 13 and edge 101A is by shutoff.
Adopt this structure, can not only make the end face of the edge 101A of sheet material 101 be exposed to outside and not with electrolyte contacts, and the internal layer 103 of sheet material 101 can also be utilized to engage air pole 13.Therefore, can prevent by the straightforward procedure that bending sheet materials 101 is such electrolyte from soaking into from the end face of peristome 22K, thus exterior body 11 intensity can be avoided to decline or degraded appearance.In addition, this Mulching treatment also has following advantage: the situation that the outer surface (outer surface of sheet material 101) being applicable to exterior body 11 is not laminated.
(the second embodiment; End face covered structure, mode of turning back)
Fig. 7 (A) is the profile schematically showing the second embodiment.
The same with the first embodiment, the edge 101A being positioned at the peripheral part of peristome 22K in the second embodiment is also turned back laterally.But, in a second embodiment, by the edge 101A of sheet material 101 of pruning in advance and the ply of paper 102 of the part 101B overlapping with edge 101A thickness is reduced by half (in Fig. 7 thickness t=0.5 × T).
Adopt this structure, as shown in Fig. 7 (A), after the edge 101A of bending sheet materials 101, the consistency of thickness of the part of edge 101A and part 101B overlap and nonoverlapping part 101C can be made.Now, the outer surface of sheet material 101 is same plane continuous print plane.Like this, joint air pole 13 can not only be fetched by hot melt and can also reduce the overhang of air pole 13 relative to sheet material 101 (exterior body 11).Adopt this second embodiment, the effect being same as the first embodiment can not only be obtained, compare the first embodiment, thinner magnesium air cell 10 can also be made.
In addition, any situation that the outer surface (outer surface of sheet material 101) that this Mulching treatment is applicable to exterior body 11 is not laminated and is laminated.
Situation when Fig. 7 (B) represents that the outer surface of exterior body 11 is laminated.Here, the skin 104 forming laminate layers is the same with internal layer 103 to be formed by heat sealability resin (such as polyethylene (PE)) made membrane.Adopt this structure, as shown in Fig. 7 (B), also join on the skin 104 of sheet material 101 by the internal layer 112 of thermal welding by air pole 13.Therefore, the lamination of the outer surface of exterior body 11 can be utilized guarantee larger bonding area.Therefore, to favourable when wanting to improve the bond strength of air pole 13.
(the 3rd embodiment; End face covered structure, film bonding method)
Fig. 8 is the profile schematically showing the 3rd embodiment.
In the third embodiment, using two surfaces in the table being pasted onto ply of paper 102 as the film 121,122 of the liquid-impermeable material of sheet, engage by thermal welding etc. the end face that each film 121,122 covers peristome 22K each other.In addition, the film 121 of internal layer side is also used as the internal layer 103 (with reference to Fig. 8) of the laminate layers for forming sheet material 101, and the film 122 of outer layer side is also used as the skin 104 (with reference to Fig. 8) of the laminate layers for forming sheet material 101.
About these films 121,122, any one in available single thin film, laminate film, the various films that applicable known end face guard block etc. are used.Such as film 121,122 (or base material of each film 121,122) is suitable for the raw material with thermal endurance and mechanical strength.Be specially, use and extend the extension film such as pet resin, extension nylon, extended polypropylene, extension vinyl alcohol.In addition, for aftermentioned each film, also can with same raw material.
Adopt this structure, can easily cover peristome 22K with the liquid-impermeable material of sheet, prevent electrolyte from soaking into from the end face of peristome 22K, thus exterior body 11 intensity can be avoided to decline or degraded appearance.
In addition, as the concrete example of these films 121,122, the laminate film that available Japanese Unexamined Patent Publication 8-337238 publication is recorded.
This patent gazette records following a kind of laminate film: using surface or back layer as the adhesive linkage be made up of heat sealability resin, also have to adjoin with this adhesive linkage and fusing point higher than the intermediate layer of adhesive linkage.Compared with using the situation of single thin film, thermal endurance can be improved by using this film, avoiding the pore etc. produced because of thermal welding occur and improve bonding stability.
(the 4th embodiment; End face covered structure, window bonding method)
Fig. 9 (A) ~ Fig. 9 (D) is that schematically order represents the profile of the 4th embodiment chronologically.
In the fourth embodiment, sheet material 101 is arranged peristome 22K (Fig. 9 (A)), in table, two surface laminatings are as the film (such as polyethylene film) of the liquid-impermeable material of sheet, or arranged internal layer 103 and outer 104 and internal layer 103 and outer 104 fitted into one using as the window (end layer stack structure) (Fig. 9 (B)) covering peristome 22K in peristome 22K part by extrusion process.
Next, as shown in Fig. 9 (C), get through the part fitting into one.Like this, the part (the Reference numeral FX in Fig. 9) of part fitting into one is stayed the surrounding of peristome 22K and covers the end face of peristome 22K.After this, joint air pole 13 (with reference to Fig. 9 (D)) is fetched by hot melt.
Adopting this structure, by carrying out fitting, getting through so comparatively simple operation to cover the end face of peristome 22K, in addition, also can obtain the covering form being encased the end face of peristome 22K by film.Like this, can prevent electrolyte from soaking into from the end face of peristome 22K, thus exterior body 11 intensity can be avoided to decline or degraded appearance.
In addition, as shown in Fig. 9 (D), the skin 104 of sheet material 101 can be utilized to be fetched by hot melt and easily to engage air pole 13.In addition, when carrying out lamination to two surfaces of ply of paper 102, the Mulching treatment of the present embodiment can carry out with lamination simultaneously.
In addition, form the situation being not limited to the above-mentioned two surperficial attaching films from peristome 22K for the operation (Fig. 9 (B), Fig. 9 (C)) of the window covering peristome 22K, also can like this: one side diaphragm being overlapped peristome 22K, engage with the film be located in advance in peristome 22K (such as the internal layer of sheet material 101) again, get through engaged a film part each other.Now, such as be suitable for No. 3047755th, Japan Patent record following technology: can not only with window sticking film and simplification interface portion structure, can also suitably covering substrates open-work inner circumferential end face and make content not be seeped into the inner circumferential end face of base material open-work.
(the 5th embodiment; End face covered structure, film bonding method)
Figure 10 is the profile schematically showing the 5th embodiment.
In the 5th embodiment, for the film 125 as the liquid-impermeable material of sheet covering the end face of peristome 22K, there is the three-decker possessing adhesive linkage 127,128 on two surfaces of the supporting course 126 be made up of extension film.In addition, as shown in Figure 10, encase the end face of the peristome 22K of sheet material with above-mentioned film 125 and fetch joint by hot melt in this condition.
Like this, can the end face of peristome 22K be encased with film 125 and cover, obtain the effect that can prevent electrolyte to soak into etc. from the end face of peristome 22K.In addition, the adhesive linkage 128 of film 125 can be utilized easily to engage air pole 13.
Described in above-mentioned 3rd embodiment, now also by being suitable for the laminate film of Japanese Unexamined Patent Publication 8-337238 publication record to improve thermal endurance, to avoid the pore etc. produced because of thermal welding occur and improve bonding stability.
(the 6th embodiment; End face covered structure, impregnation method)
Figure 11 is the profile schematically showing the 6th embodiment.
As shown in figure 11, in the sixth embodiment, make the end face dipping hydrophobe medicament MX of peristome 22K, like this, prevent electrolyte from soaking into from end face thus avoiding exterior body 11 intensity to decline or degraded appearance.This hydrophobe medicament MX is suitable for urethane adhesive or Liquid Paraffin etc.Preferably this medicament MX with an organic solvent and be low viscosity.Adopt this structure, medicament MX is easy to remain in the gap of paper fiber from the end face of sheet material 101, can have the effect preventing that electrolyte from soaking into etc. for a long time.
In addition, as shown in figure 11, inside and outside two surfaces of the preferred exterior body of this Mulching treatment 11 are laminated.Adopt this structure, because the skin 104 forming laminate layers engages with air pole 13, so can effectively prevent electrolyte from soaking between sheet material 101 (exterior body 11) and air pole 13.
(the 7th embodiment; Air pole utilizes type covered structure, hot solvent)
Figure 12 is the profile schematically showing the 7th embodiment.
In the 7th embodiment, from sheet material 101 to air pole 13, overall coating hot solvent (also referred to as hot-melt adhesive), is covered the end face of peristome 22K by hot solvent HX.The known raw material such as the thermoplastic plastics such as the applicable ethylene-vinyl acetate copolymer of this hot solvent HX (EVA) or polyurethane series reaction constrictive type thermoplastic resin.
Like this, can obtain and prevent electrolyte from effects such as the end face of peristome 22K soak into by hot solvent HX.In addition, because hot solvent HX can enter internal layer 112, the i.e. porosity surface of air pole 13, so the higher bond strength between hot solvent HX and air pole 13 can be kept.The surface texture that therefore can effectively utilize air pole 13 improves the bond strength of hot solvent HX and is conducive to improving covering durability.
Substituting as hot solvent HX, also can use high viscosity and the coverture (such as gluey constrictive type bonding agent) of processing after-hardening covers end face.
In addition, as shown in figure 12, this Mulching treatment also has following advantage: even if the outer surface of exterior body 11 is not laminated also be suitable for.
In addition, when the bonding air pole 13 of the outer surface of the exterior body 11 covered without paper (ply of paper 102), hot solvent, tape-stripping, bonding agent is used to paste.
(the 8th embodiment; Air pole utilizes type covered structure, film bonding method)
Figure 13 is the profile schematically showing the 8th embodiment.
In the 8th embodiment, using being pasted onto the one side (inner surface) of sheet material 101 as the film 131 of the liquid-impermeable material of sheet, the end 131A of this film 131 is engaged with air pole 13.Like this, from sheet material 101 to the overall sticking film 131 of air pole 13, the end face of peristome 22K is covered by film 131.The known raw material such as the applicable heat sealability resin of this film 131 (such as polyethylene (PE)), are joined in air pole 13 by thermal welding etc.
Adopt this structure, can obtain and prevent electrolyte from effects such as the end face of peristome 22K soak into by film 131.In addition, film 131 engages, so can keep the higher bond strength between film 131 and air pole 13 with the state entering internal layer 112, the i.e. porosity surface of air pole 13.The surface texture that therefore can effectively utilize air pole 13 improves the bond strength of film 131 and is conducive to improving covering durability.
The same with the 7th embodiment, this Mulching treatment also has following advantage: even if the outer surface of exterior body 11 is not laminated also be suitable for.
Figure 14 (A) and Figure 14 (B) represents an example of film 131.
Figure 14 (A) represents the situation forming one-piece type film 131.That is, rectangular-shaped for four of each limit of the rectangular aperture portion 22K covering air pole 13 part (top covering part 132, left and right side covering part 133,134 and covering part 135 below) is integrally made cubic frame-shaped film.
Like this, during in one-piece type frame-shaped extended in the edge of whole peristome 22K, can number of components be reduced and be easy to simplify overwrite job.
In addition, Figure 14 (B) represents the situation that four covering parts 132 ~ 135 are formed respectively.That is, make the rectangular portion being equivalent to four covering parts 132 ~ 135 respectively, engage each rectangular portion by thermal welding etc. and be formed in frame-shaped film extended in the edge of whole peristome 22K.
Now, compared with the situation of Figure 14 (A), the clout of thin film raw material can be reduced when cutting from thin film raw material.But also be easy to make the film of various shape and be easy to corresponding design alteration or dimension modifying.
As mentioned above, the exterior body 11 of this structure is formed by the sheet material 101 containing paper.Sheet material 101 not only across gap SF, SR cover magnesium pole (metal pole) 15 and also at least inner surface side formed liquid-impermeable, exterior body 11 is provided with the peristome 22K installing air pole 13 from outer surface side, the end face of peristome 22K is soaked into prevent injecting inner electrolyte by end face processing, therefore, the impact adopting the end face of the peristome 22K that just can prevent electrolyte from entering from confession air by the structure forming exterior body 11 containing the sheet material 101 of paper to soak into etc. to bring.
In addition, as above-mentioned end face processing, the end face of peristome 22K is turned back (first, second embodiment, Fig. 6, Fig. 7) laterally in the edge of sheet material 101, can prevent electrolyte from affecting peristome 22K by the straightforward procedure that bending sheet materials 101 is such.Now, without the need to the parts beyond sheet material 101, be conducive to reducing costs.
In addition, as above-mentioned end face processing, the end face of peristome 22K is covered (the three ~ eight embodiment by the film 121,122,125,31 as the liquid-impermeable material of sheet.Fig. 8 ~ Figure 13), the covering performance corresponding to film performance can be obtained.Now, by using the film widely circulated, being easy to reduce costs, and selecting required covering performance by selected film.
Now, at two surface mount of sheet material 101 as the film 121,122 of the liquid-impermeable material of sheet, make film 121,122 be engaged with each other to cover end face (the 3rd embodiment, Fig. 8), this laminated film can be utilized to cover when two surface of laminate 101.
In addition, the film (liquid-impermeable material) of formation internal layer 103, skin 104 or film (liquid-impermeable material) 125 are pasted onto the surface of sheet material 101, the end face of peristome 22K is encased to cover end face (the 4th, the 5th embodiment, Fig. 9, Figure 10) with these films, as shown in Figure 9 and Figure 10, the covering form of the end face encasing peristome 22K can be obtained, be easy to prevent electrolyte from soaking into from end face.
In addition, as above-mentioned end face processing, end face dipping hydrophobe medicament MX (the 6th embodiment, Figure 11) of peristome 22K, by using the method for this medicament MX, can prevent electrolyte from soaking into from the end face of peristome 22K.Now, as medicament MX, by using the low viscosity medicament that can remain in the gap of the fiber of the end face of peristome 22K, be conducive to improving covering durability.
In addition, as above-mentioned end face processing, the overall coating hot solvent HX from sheet material 101 to air pole 13, covered the end face (the 7th embodiment, Figure 12) of peristome 22K by hot solvent HX, the surface unevenness profile of air pole 13 can be effectively utilized and improve the bond strength of the hot solvent HX playing covering effect.
In addition, as above-mentioned end face processing, from sheet material 101 to the overall sticking film of air pole 13 (liquid-impermeable material) 131, covered end face (the 8th embodiment of peristome 22K by this film 131.Figure 13), the same with the situation of hot solvent HX, the surface unevenness profile of air pole 13 can be effectively utilized and improve the bond strength of the film 131 playing covering effect.
Now, film 131 is in one-piece type frame-shaped (Figure 14 (A)) extended in the edge of whole peristome 22K, compared with the situation of the edge sticking film at each peristome 22K, number of components can be reduced and disposablely can complete sticking operation again.In addition, this film 131 connects multiple oblong-shaped film and forms the edge the frame-shaped of stretching out (Figure 14 (B)) that arrive peristome 22K, be easy to when cutting from the thin film raw material of liquid-impermeable material reduce clout, but also be easy to corresponding various shape.
In addition, the invention is not restricted to said structure, can various distortion and change be carried out.
Such as, also may be combined with plural above-mentioned end face processing.Such as, for the embodiment except the impregnation method except the 6th embodiment, the also impregnation method that the end face of peristome 22K is flooded capable of being combined.In addition, also may be combined with the mode of turning back of the first and second embodiments records and the film bonding method of other embodiments record.By combination, be easy to improve covering performance (durability) etc.
In addition, in the above-described embodiment, describe and fetch by hot melt the situation engaging each parts, but also applicable joint method in addition.Such as also can be suitable on covering film impulse sealing, supersonic thermal setting, by hot air after crimping, hot solvent, tape-stripping, bonding agent etc.
(the second execution mode)
Figure 15 is the stereogram of the exterior body 11 of the second execution mode, and Figure 16 is the figure (being equivalent to the figure of punching sheet 100) of exterior 11 of expansion second execution mode.In addition, in the following description, repeat specification is omitted to the structure identical with said structure mark same reference numerals, different piece is described in detail in detail.
Compared with forming sheet 25F (Fig. 3) with the upper plate portion of the first execution mode, the upper plate portion be connected with the upper limb 22A (Figure 16) of front wall portion 22 of this exterior body 11 forms sheet 25F and is formed longer at above-below direction.In addition, this upper plate portion formation sheet 25F is benchmark with upper and lower tripartite folding line 22C, 22D (Figure 16), is provided with the first kink 25F1, the second kink 25F2 and the 3rd kink 25F3 successively from front wall portion 22 side.
In addition, compared with forming sheet 25R (Fig. 3) with the upper plate portion of the first execution mode, the upper plate portion be connected with the upper limb 23A (Figure 16) of rear wall parts 23 forms sheet 25R and is also formed longer, and is benchmark with upper and lower tripartite folding line 23C, 23D (Figure 16), is provided with the first kink 25R1, the second kink 25R2 and the 3rd kink 25R3 successively from rear wall parts 23 side.
Figure 17 is the figure of the exterior body 11 representing the second execution mode, Figure 17 (A) is front view, and Figure 17 (B) is the A-A profile of Figure 17 (A).
As shown in Figure 17 (A) and Figure 17 (B), second kink 25F2,25R2 is respectively to lateral buckling in exterior body 11, and the 3rd kink 25F3,25R3 is respectively to the outer lateral buckling of exterior body 11.
Now, compare second kink 25F2,25R2, because the 3rd kink 25F3,25R3 is formed longer at above-below direction, so compare second kink 25F2,25R2, the front end of the 3rd kink 25F3,25R3 more projects upwards, and the 3rd kink 25F3,25R3 abuts each other.
Namely, upper plate portion forms sheet 25F, 25R not only along magnesium pole 15 to lateral buckling in exterior body 11, and turns back to the opposition side inside this exterior body 11 and formed than magnesium pole 15 also to the return portion (being made up of second kink 25F2,25R2 and the 3rd kink 25F3,25R3) that exterior body 11 is protruding outside.
In addition, as shown in Figure 17 (B), between the bottom that the top of magnesium pole 15 is sandwiched in the return portion of described front and back a pair (between the bottom of the 3rd kink 25F3,25R3), the return portion be projected into outside exterior body 11 engages by thermal welding to keep this state mutually.
Like this, not only in clamping magnesium pole 15, the bottom of return portion, can also shutoff upper plate portion to form between sheet 25F, 25R, i.e. the top of exterior body 11.Therefore, upper plate portion forms the effect that sheet 25F, 25R both sides not only play the supporting kink for supporting magnesium pole 15, also plays the effect of the closure part on the top of shutoff exterior body 11.
Adopt this structure, compared with the invagination type shown in Fig. 4 of the first execution mode etc., can reliably shutoff top to suppress electrolyte evaporation or to spill.
In addition, because unlike Fig. 5, left and right segmentation upper plate portion forms sheet 25F, 25R, so be difficult to when folding into produce fold.In addition, turn back owing to bending backward outside to the inside, the rigidity that upper plate portion forms sheet 25F, 25R self is improved and can prevents fold or distortion, can improve the rigidity of exterior body 11 and improve the supporting force of magnesium pole 15.
In addition, in the present embodiment, do not form the tab portion 15T (with reference to Fig. 1) projected upwards in magnesium pole 15, and replace with the structure of the top connection wiring 15H (aftermentioned Figure 21) in magnesium pole 15.
In addition, as shown in figure 16, the left and right becoming the first kink 25F1 of the cap covered above magnesium pole 15 in the bending of the upper limb 22A place of front wall portion 22 is provided with all-in-one-piece thin slice 26F.As shown in figure 15, these thin slices 26F with the left and right lateral margin of the first kink 25F1 for benchmark (along inner side bent sheet 24FU) bending downwards, then, after the outside bent sheet 24FS forming sheet 24F along sidewall portion more vertically bends, picking to clamp with hot melt is bent into vertical thin slice 26F and fetches joint by hot melt.
The both upper ends thereof being fixed exterior body 11 like this by thin slice 26F just can strengthen the top of each bent sheet 24FU, 24FS.
Adopt this structure, with the gap between the thin slice first kink 25F1 of 26F shutoff as cap and the formation sheet 24F of the sidewall portion as sidewall portion, can evaporate to prevent electrolyte or spill.In addition, the strength of connection of the first kink 25F1 and sidewall portion formation sheet 24F can also be improved, be upwards out of shape to suppress the first kink 25F1 or suppress sidewall portion to be formed sheet 24F and be out of shape in the lateral direction.
In addition, in the present embodiment, the same with front wall portion 22, the left and right becoming the first kink 25R1 of the cap covered above magnesium pole 15 in the bending of the upper limb 23A place of rear wall parts 23 is also provided with the all-in-one-piece thin slice 26R (with reference to Figure 16) being same as above-mentioned thin slice 26F.As shown in figure 15, these thin slices 26R with the left and right lateral margin of the first kink 25R1 for benchmark (along inner side bent sheet 24RU) bending downwards, then, after the outside bent sheet 24RS forming sheet 24R along sidewall portion more vertically bends, picking to clamp with hot melt is bent into vertical thin slice 26R and fetches joint by hot melt.
The both upper ends thereof being fixed exterior body 11 like this by thin slice 26R just can strengthen the top of each bent sheet 24RU, 24RS.
Like this, can between the first kink 25R1 of shutoff as cap and the formation sheet 24R of the sidewall portion as sidewall portion, electrolyte can not only be suppressed to evaporate or spill, the strength of connection of the first kink 25R1 and sidewall portion formation sheet 24R can also be improved, be upwards out of shape to suppress the first kink 25R1 or suppress sidewall portion to be formed sheet 24R and be out of shape in the lateral direction.
In addition, the thermal welding being bent into vertical thin slice 26F and thin slice 26R, except homogeneous heating, completes thermal welding due to disposable, so preferably both thermal weldings simultaneously.
By above-mentioned, electrolyte not only more can be suppressed to evaporate or spill by above-mentioned thin slice 26F, 26R, exterior body 11 also more can be prevented to be out of shape.
In addition, in this structure, thin slice 26F, 26R in advance in left and right and upper plate portion form between sheet 25F, 25R and arrange breach 28 (with reference to Figure 16), as shown in figure 15, when assembling exterior body 11, form the space 28K. guaranteeing between sheet 25F, 25R to pass for the distribution 15H (aftermentioned Figure 21) from magnesium pole 15 at thin slice 26F, 26R and upper plate portion
As described above, as shown in Figure 17 (B), in the supporting structure of the metal pole (magnesium pole 15) of present embodiment, upper plate portion forms sheet 25F, 25R (supporting kink) have not only from front wall portion 22 and rear wall parts 23 along magnesium pole 15 to lateral buckling in exterior body 11, also turn back to the opposition side inside this exterior body 11 and formed than magnesium pole 15 also to the return portion that exterior body 11 is protruding outside, not only clamp magnesium pole 15 by the bottom of return portion, also the part be projected into outside exterior body 11 of remainder is bonded with each other and is formed sheet 25F with closed upper plate portion, between 25R, therefore electrolyte can not only be suppressed to evaporate or spill can also prevent exterior body 11 to be out of shape, and, magnesium pole 15 can be suppressed to misplace and suitably keep the standoff distance between magnesium pole 15 and air pole 13.
In addition, the part forming sheet 25F, 25R due to upper plate portion projects upwards, so be used as handle part when carrying exterior body 11.In addition, the joint forming each portion of sheet 25F, 25R due to upper plate portion is undertaken by welding, so performance is laminated the heat sealability of the sheet material of processing etc. and can easily engages with heat sealability resin.
Owing to having and forming the upper plate portion of cap and forms sheet 25F, 25R and be connected and join thin slice 26F, 26R (Figure 15) that the sidewall portion forming sidewall portion forms sheet 24F, 24R to, thus shutoff upper plate portion formation sheet 25F, 25R can be carried out by simple structure and between sidewall portion formation sheet 24F, 24R to suppress electrolyte evaporation or to spill.In addition, upper plate portion can also be improved form the strength of connection that sheet 25F, 25R and sidewall portion form between sheet 24F, 24R and be out of shape more to prevent exterior body 11.
In addition, upper plate portion formation sheet 25F, 25R is not limited to above-mentioned shape.Such as shown in Figure 18 (A) and Figure 18 (B), also can lengthen upper plate portion 25 and the 3rd kink 25F3,25R3 be become handle shapes, thus more easily holding.
Following situation is represented: not only strengthen the 3rd kink 25F3,25R3 at above-below direction and the elongated hole 29 extended in left-right direction is also set in Figure 18 (A), the finger of user etc. more easily holds exterior body 11 through each elongated hole 29, is formed with such handle.In addition, on each elongated hole 29 of the 3rd kink 25R3 of one, the kink 29A bent is set, improves the sense of touch of the finger through elongated hole 29 with this towards each elongated hole 29 of another the 3rd kink 25F3.
In addition, in Figure 18 (B), represent following situation: arrange further respectively by the breach 30 that the 3rd kink about 25F3,25R3 is split, thus form two handles.Can avoid interfering with internal part by arranging this breach 30.
(the 3rd execution mode)
Figure 19 (A) is the front view of the exterior body 11 of the 3rd execution mode, and Figure 19 (B) is the B-B profile representing Figure 19 (A).
Base piece portion 35 that this exterior body 11 is provided with pair of right and left, that embed for the lower end of magnesium pole 15.These base piece portions 35 are formed like this: by sheet material, the i.e. paper same with forming the sheet material of exterior body 11 and heat sealability resin, by lamination process etc., the sheet material of compound is bent into the downward protrusion shape that the lower end for magnesium pole 15 embeds.
Figure 20 is the stereogram in the base piece portion 35 of the 3rd execution mode.
Base piece portion 35 integrally has: respectively with front and back pair of end portions 35AF, the 35AR of the two ends lower bond of front wall portion 22 and rear wall parts 23; From a pair, front and back, the first kink 35B (35BF, 35BR) of the lower end approximate horizontal bending to the inside of each end 35AF, 35AR; A pair, the front and back bent downwards from one end of the first kink 35B the second kink 35C; Bridge part 35D between the lower end linking each second kink 35C (35CF, 35CR).
Gap length between second kink 35C is formed roughly the same with the thickness of magnesium pole 15.Like this, as shown in Figure 19 (B), by configuring magnesium pole 15 to keep the lower end of magnesium pole 15 between the second kink 35C.
This base piece portion 35 is formed like this: under the sheet material for the formation of exterior body 11 is expanded into plane state, by thermal welding, each end 35AF, 35AR is engaged with this sheet material in the mode of the base plate 21 across exterior body 11.Afterwards, when this sheet material being bent into upwards uncovered concavity and forming exterior body 11, the first kink 35A and the second kink 35B holds up to form described base piece portion 35 in the mode leaving base plate 21 inside exterior body 11.
In other words, the leaf length between end 35AF, 35AR in this base piece portion 35 (leaf length be made up of a pair first kink 35B, a pair second kink 35C and bridge part 35D) is not only formed be same as the equal with the distance (in Figure 19 (B) distance shown in Reference numeral LX) between the junction surface between base piece portion 35 of exterior body 11, and is provided with folding line can be bent into illustrated each portion 35B ~ 35D shape to carry out peak folding or paddy folding in advance.
Like this, under the state that the sheet material of exterior body 11 is launched, can easily composition plane shape launch base piece portion 35, afterwards, when the sheet material of exterior body 11 being bent into concavity in the mode forming base plate 21, the rising portion be made up of the first kink 35B and the second kink 35C in base piece portion 35 is holded up in the mode leaving base plate 21, can easily assembling plate sheet portion 35.
By arranging this base piece portion 35, magnesium pole 15 front-back staggered can be prevented, being easy to the distance (standoff distance) suitably kept between magnesium pole 15 and air pole 13.In addition, following effect is also had: magnesium pole 15 can be suppressed to scratch exterior body 11.
In addition, the bridge part 35D due to base piece portion 35 embeds the part 21T of the downward protrusion of base plate 21 and is located at base plate 21 place, so also can easily suppress magnesium pole 15 to misplace.
In addition, in the present embodiment, the bridge part 35D in base piece portion 35 is set as the central authorities of the fore-and-aft direction being positioned at exterior body 11, but by adjusting the length ratio of the first kink 35B (35BF and 35BR) at fore-and-aft direction in base piece portion 35, adjust each upper plate portion accordingly and form first kink 25F1 and 25R1 of sheet 25F, 25R in the length ratio of fore-and-aft direction, suitably can adjust the position (interelectrode distance) of magnesium pole 15 at fore-and-aft direction.
In addition, in the present embodiment, join on this sheet material exemplified with by thermal welding each end 35AF, 35AR by described base piece portion 35, but at least one party of front and back pair of end portions 35AF, 35AR is by thermal welding.
(the 4th execution mode)
Figure 21 is the stereogram of the magnesium air cell 10 of the 4th execution mode, and Figure 22 is the sectional side view of the magnesium air cell of the 4th execution mode.
The structure of this magnesium air cell 10 is: having for accommodating containing electrolytical electrolyte host body 41 in the electrolytic solution, forming electrolyte as dissolving electrolyte by water filling during battery.Usually, compare electrolyte (salt solution), the water capacity easily obtains, as long as so prepared water just can use battery, just can not use by place restriction, it has such advantage.
Electrolyte host body 41 have be arranged on magnesium pole 15 in contrast to the pole plate installation sheet 42 on the face of air pole 15 side and the bag 43 that is located on pole plate installation sheet 42.
As shown in figure 22, pole plate installation sheet 42 is sandwiched in being kept between a pair, front and back upper plate portion formation sheet 25F, 25R of exterior body 11.Be more specifically, as shown in figure 22, upper plate portion forms outside (the be equivalent to upside) bending of second kink 25F2,25R2 to exterior body 11 of sheet 25F, 25R, the top of pole plate installation sheet 42 is sandwiched between these second kinks 25F2,25R2, under this state, fetch by hot melt be bonded with each other second kink 25F2,25R2 and pole plate installation sheet 42.Like this, maintenance is suspended in midair by exterior body 11 in the top of pole plate installation sheet 42.
Figure 23 (A) is the stereogram observing electrolyte host body 41 and magnesium pole 15 from air pole 13 side together, and Figure 23 (B) is the stereogram observed from the opposition side of air pole 13.
Pole plate installation sheet 42 is by the sheet material same with the sheet material forming exterior body 11, i.e. paper and heat sealability resin, and by lamination process etc., the sheet material of compound is formed.This pole plate installation sheet 42 have all-in-one-piece for cover the back side of magnesium pole 15 sheet main body 42A, to bend from the bottom of sheet main body 42A and the pair of right and left bottom fitting portion 42B supplying the bottom of magnesium pole 15 to embed, a part for the center upper portion of sheet main body 42A to be cut and the upside fitting portion 42C chimeric with the recess 15D being located at top, magnesium pole 15.The above-below direction of magnesium pole 15 relative to pole plate installation sheet 42 and the movement of fore-and-aft direction is limited by these three fitting portions 42B, 42C.
Crimping is fixing mutually by pair of right and left crimping metalwork 45 for this pole plate installation sheet 42 and magnesium pole 15.Be more specifically, can with the fringing metalwork (metalwork of grommet or the grommet that is otherwise known as) circular hole being carried out to fringing as crimping metalwork 45, run through in the pair of right and left circular hole of pole plate installation sheet 42 and magnesium pole 15 by this crimping metalwork 45 is installed to, just can fixed polar plate installation sheet 42 and magnesium pole 15.
Now, a crimping metalwork 45 is fixed with the metalwork of the front end being located at distribution 15H.Like this, magnesium pole 15 and distribution 15H can easily be connected.This distribution 15H is pulled to outside exterior body 11, as the tab portion 15T shown in Fig. 1 or the part being used as negative pole distribution through the space 28K (Figure 21) being located at exterior body 11.In addition, the other end of this distribution 15H is provided with splicing ear (being connector terminals in this structure) 15J used when distribution connects, and is easy to be connected with other distributions.
In addition, in the example of Figure 21, indicate following situation: on the top of air pole 13 with the crimping metalwork 46 connection wiring 13H identical with described crimping metalwork 45, in addition, the other end of this distribution 13H is provided with identical splicing ear 13J.
As shown in figure 22, the bottom of bending pole plate installation sheet 42 and the bottom fitting portion 42B that formed are to be same as the length of the standoff distance (being equivalent to gap SF) between magnesium pole 15 and front wall portion 22, and wall portion 22 side is given prominence to and abutted with the back side of front wall portion 22 forward.Like this, fitting portion 42B in bottom plays the effect standoff distance of magnesium pole 15 and air pole 13 being constrained to constant limiting part.
In addition, as shown in Figure 23 (B), pole plate installation sheet 42 is provided with the pair of right and left bottom kink 42D formed to the opposition side bending of air pole 13 its underpart.As shown in figure 22, these bottoms kink 42D is to be same as the length of the standoff distance (being equivalent to gap SR) between magnesium pole 15 and rear wall parts 23, rear wall part 23 side is given prominence to and is abutted with the back side of rear wall parts 23, plays the effect standoff distance of magnesium pole 15 and rear wall parts 23 being constrained to constant limiting part.
Like this, effectively can prevent the dislocation of bottom at fore-and-aft direction of magnesium pole 15, thus suitably can keep the standoff distance between magnesium pole 15 and air pole 13.
Bag 43 is formed by paper, nonwoven fabrics, the water-soluble material such as starch-series film or polyvinyl alcohol film of dank material, wafer and so on of to weave cotton cloth and so on.Such as using behind the inside putting into described bag 43 as electrolytical sodium chloride, by thermal welding by the upper bond of bag 43 on pole plate installation sheet 42.By carrying out thermal welding to the top of bag 43, even if in the various attitude such as to turn upside down, also becoming electrolyte and can not reveal outside or drain to outside structure.In addition, the joint of above-mentioned pole plate installation sheet 42 and bag 43 is not limited to thermal welding, also can use stapler or adhesive tape etc.
The installation site of this bag 43 be set at the back side (with the face of opposition side, magnesium pole 15) of pole plate installation sheet 42, as the below of the hole portion 25H (with reference to Figure 16) of the water filling port of water.Therefore, can electrolyte be dissolved rapidly with the water injected and generate rapidly suitable electrolyte.
Electrolyte in this structure, is arranged on pole plate installation sheet 42 due to electrolytical bag will be surrounded by, so can be avoided to be attached to the state of affairs that magnesium pole 15 occurs in corrosion.In addition, when sodium chloride being used as electrolyte, described bag 43 has the gap also less than the particle diameter of sodium chloride, has and does not make solid sodium chloride pass through and water penetration that water is passed through.Be specially, the particle diameter due to sodium chloride is modal is 0.4mm, therefore preferably the average pore size of bag 43 than the particle diameter also little 0.05mm ~ 0.3mm of described sodium chloride.
When sodium chloride is used as electrolyte, preferred mass is 4% ~ 18% of the quality of the water injected.The empirical tests such as inventor are learnt: during less than 4%, the resistance of electrolyte becomes large and voltage drop becomes large, and therefore the lower electricity sent of voltage is less.But, if more than 18%, be saturation condition at electric discharge sodium chloride in latter stage and separate out, be deposited in the interpolar of inside battery and hinder exoelectrical reaction, cannot discharge.
In addition, above-mentionedly material beyond sodium chloride can also be comprised when sodium chloride is used as electrolyte.In other words, as long as now electrolytical principal component is sodium chloride, also other compositions can be contained.
As shown in Figure 23 (B), the cut 51 that pole plate installation sheet 42 is provided with a part that be positioned at the top of bag 43, that cut this sheet 42 and is formed.This cut 51 forms L word section and integrally has and to bend from the sheet main body 42A of pole plate installation sheet 42 and the horizontal plate part 51A of horizontal-extending, to bend downwards and abut the rear wall abutting part 51B of rear wall parts 23 from the front end of horizontal plate part 51A.
Horizontal plate part 51A is configured in the below of the hole portion 25H of the water filling port as water and is positioned at the top of bag 43, plays the effect of the proliferation part spread towards periphery by water offset this horizontal plate part 51A of injection.Be more specifically, across the multiple aperture of gap-forming on horizontal plate part 51A, make a part of water fall through aperture and be spread towards periphery by the water of remainder downwards.Like this, the water of injection carried out spreading and is supplied to bag 43, can effectively dissolve the electrolyte in bag 43 and make electric discharge start time be easy to send electric power ahead of time.In addition, reduce concentration ratio when water filling starts and be easy to avoid local corrosion.
In addition, when carrying out water filling with water filling fixture etc., horizontal plate part 51A also plays the effect of the reference value of the insertion depth of water filling fixture.Like this, can prevent from damaging bag 43 because of water filling fixture etc.
In addition, produce hydrogen because of the self discharge reaction of magnesium after discharge is started, so electrolyte is mixed because of the generation of this hydrogen, concentration ratio can be reduced further.
In addition, as shown in figure 23, in the present embodiment, cut 51 is arranged to pair of right and left, can bend either one or two cut according to the size of bag 43.Such as, in the example of Figure 23 (B), because bag 43 is only configured in the below of a cut 51, as long as so bending one cut 51.If in contrast, bag 43 be located at the whole below of two cut 51 and wider width time, bend two cut 51, by effectively electrolyte can be dissolved from two side holes portion 25H water filling.
As described above, in the present embodiment, the face of the opposition side of the air pole 13 in magnesium pole 15 is provided with electrolyte host body 41, its for accommodate by water filling in exterior body 11 as battery operated electrolyte, therefore be not only the solvent only adding electrolyte and just can be used as battery, the corrosion of the magnesium pole 15 of causing by electrolytical impact can also be prevented.
In addition, due to electrolyte host body 41, there is the pole plate installation sheet 42 on the face of the opposition side of the air pole 13 being arranged on magnesium pole 15 as the sheet material containing paper and engage with pole plate installation sheet 42 to accommodate electrolytical bag 43, so the corrosion of the magnesium pole 15 loading sheet material and can prevent from being subject to electrolytical impact and cause between magnesium pole 15 and electrolyte.In addition, owing to being arranged on exterior body 11 without the need to being used for accommodating electrolytical bag 43, be therefore easy to the structure simplifying exterior body 11, the installation exercise of bag 43 also easily carries out in addition.
Because pole plate installation sheet 42 crimping is fixed on magnesium pole 15, bag 43 welding is on pole plate installation sheet 42, and therefore, the installation of pole plate installation sheet 42 and bag 43 becomes easy.
Pole plate installation sheet 42 has and carries out a part for this sheet 42 bending limiting magnesium pole 15 relative to the fitting portion 42B of this sheet 42 movement and upside fitting portion 42C (limiting unit), magnesium pole 15 is remained on exterior body 11 by pole plate installation sheet 42 is remained on exterior body 11, therefore, without the need to arranging the structure being used for directly keeping magnesium pole 15 in exterior body 11 side, be easy to the structure simplifying exterior body 11.
In addition, due to the more top Suspending fixation pole plate installation sheet 42 of the base plate 21 at exterior body 11, so without the need to the magnesium pole 15 be bearing on this pole plate installation sheet 42 is positioned in the base plate 21 of exterior body 11.Therefore, the degree of freedom of the lower end position of magnesium pole 15 can be improved, as shown in figure 22, the lower end of the lower end of magnesium pole 15 and air pole 13 can be made roughly to be in sustained height.Like this, the part of the cell reaction being almost unprofitable to magnesium pole 15 can be reduced and the miniaturization of magnesium pole 15 can be realized.
In addition, in the 4th execution mode, describe the situation of Suspending fixation pole plate installation sheet 42 above more top than the base plate 21 of exterior body 11, but as shown in figure 24, also pole plate installation sheet 42 can be extended downward the base plate 21 arriving exterior body 11 and the bottom of pole plate installation sheet 42 is positioned in base plate 21.Now, the base plate 21 of exterior body 11 can be utilized to support relatively heavier magnesium pole 15.
One example of electrolyte host body 41 now represents in Figure 25 (A) and Figure 25 (B).As shown in Figure 25 (A) and Figure 25 (B), pole plate installation sheet 42 is bent into be formed consistent with the opening shape in exterior body 11 be flat flat part 42G.Like this, can guarantee there is larger contact area between the bottom (flat part 42G) of pole plate installation sheet 42 and the base plate 21 of exterior body 11, can not only guarantee that the supporting force of pole plate installation sheet 42 can also suppress base plate 21 to be out of shape.
In addition, the bottom (flat part 42G) due to pole plate installation sheet 42 embeds the movement be limited all around in exterior body 11, therefore effectively can limit pole plate installation sheet 42 and misplace.
In Figure 25 (A) and Figure 25 (B), for above-mentioned pole plate installation sheet 42, the extension 42H stretched out to the left and right is provided with in the more top position of above-mentioned flat part 42G, not only center side bends each extension 42H and by one partial insertion flat part 42G to the left and right, forms bottom, the left and right fitting portion 42B that the bottom for magnesium pole 15 embeds like this.But the restriction in each portions such as bottom fitting portion 42B or flat part 42G is not limited to above-mentioned shape, can appropriate change.
In addition, in Figure 25 (A) and Figure 25 (B), pole plate installation sheet 42 is not formed cut 51 (with reference to Figure 23 (B)).That is, also can appropriate change with or without cut 51.Like this, the shape in each portion of pole plate installation sheet 42 also can in the scope that can realize above-mentioned each function appropriate change.
(the 5th execution mode)
Figure 26 is the sectional side view of the magnesium air cell 10 of the 5th execution mode.Be that this magnesium air cell 10 also has the electrolyte host body 41 be made up of pole plate installation sheet 42 and bag 43 with the identical point of above-mentioned 4th execution mode, but difference is above-mentioned pole plate installation sheet 42 is integrally located on the sheet material for the formation of exterior body 11.
Figure 27 is the stereogram of exterior body 11, and Figure 28 (A) is the figure (being equivalent to the figure of punching sheet 100) launching exterior body 11.In addition, the figure in Figure 28 (B) to be the figure in the X region being equivalent to Figure 27, Figure 28 (C) be Y region being equivalent to Figure 27, Figure 28 (D) is the figure in the Z region being equivalent to Figure 27.
As shown in Figure 27 and Figure 28 (A), in this exterior body 11, become the first kink 25R1 of the cap (upper plate portion 25) covered above magnesium pole 15 in the bending of the upper limb 23A place of rear wall parts 23, be connected with pole plate installation sheet 42 through folding line 23C.Pole plate installation sheet 42 has through folding line 23C to the orthogonal sheet main body 42A of exterior body 11 inner bending, and magnesium pole 15 is fixed on this sheet main body 42A by pair of right and left crimping metalwork 45 (Figure 17) crimping.
In addition, become the first kink 25F1 of the cap (upper plate portion 25) of the top covering magnesium pole 15 in the bending of upper limb 23A (the being equivalent to folding line) place of front wall portion 22, be integrally provided with the insertion section 62 in the peristome 61 (Figure 28 (A)) inserting the boundary line part be located between the first kink 25R1 and pole plate installation sheet 42, be positioned at the pair of right and left tab portion 63 of insertion section about 62.
As shown in Figure 28 (B), during assembling exterior body 11, by insertion opening portion, insertion section 62 61 just can be linked first kink 25F1,25R1 each other.In addition, as shown in figure 27, pair of right and left tab portion 63 is to lateral buckling in exterior body 11.
As shown in Figure 28 (A), pole plate installation sheet 42 integrally has the pair of right and left lateral plate 42J be connected with the left and right lateral margin of sheet main body 42A, the bottom sheet 42K be connected with the lower edge of sheet main body 42A.
The structure of pair of right and left lateral plate 42J is be divided into the lateral plate 42JA of upside and the lateral plate 42JB of downside respectively up and down.As shown in Figure 28 (C), the lateral plate 42JA of upside is bent into approximate right angle, to enter under cap (the first kink 25R1) under state sheet main body 42A being bent into 90 degree relative to cap (the first kink 25R1).
Now, abutted the lower surface of cap (the first kink 25R1) by the lateral plate 42JA of upside, can move to cap (the first kink 25R1) side by margining tablet main body 42A.Like this, be easy to sheet main body 42A and cap (the first kink 25R1) to remain square position relation.
The lateral plate 42JB of downside integrally have with the left and right lateral margin 42M of sheet main body 42A for inner side kink 42JU from folding line to rear wall parts 23 lateral buckling of exterior body 11, within the outside kink 42JS that bends to the left and right for folding line of the outer rim 42N of lateral bending folding part 42JU.
As shown in Figure 28 (C) and Figure 28 (D), outside kink JS is engaged with the rear wall parts 23 of exterior body 11 by thermal welding.Like this, sheet main body 42A and rear wall parts 23 link.Now, as shown in figure 27, because inner side kink 42JU builds bridge between sheet main body 42A and rear wall parts 23, so the standoff distance between sheet main body 42A and rear wall parts 23 can be kept constant.Like this, can position sheet main body 42A, keep, guarantee there are enough bearing strengths to heavier magnesium pole 15 and the standoff distance between magnesium pole 15 and air pole 13 can be kept constant.
As shown in figure 27, the bottom sheet 42K be connected with the lower edge of sheet main body 42A upwards to be bent for folding line with the lower edge of sheet main body 42A and is engaged with sheet main body 42A by thermal welding.Like this, compared with not having the structure of above-mentioned bottom sheet 42K, moisture (electrolyte) can be suppressed to immerse sheet end face and suppress tab strength to reduce.In addition, as arranging bottom sheet 42K and substituting of bending, also the lower edge adhesive tape-like covered rearing with plastic film of sheet main body 42A can be immersed sheet end face to prevent water from dividing.
As shown in figure 26, in this structure, the lower end of pole plate installation sheet 42 is positioned at the position more top than the base plate 21 of exterior body 11.That is, pole plate installation sheet 42 is by the cap of exterior body 11 (the first kink 25R1) suspention supporting.Therefore, without the need to being placed in the base plate 21 of exterior body 11 by the magnesium supported by pole plate installation sheet 42 pole 15, improve the degree of freedom of the lower end position of magnesium pole 15.
Like this, by making the lower end of magnesium pole 15 more top than the lower end of air pole 13, can guarantee, between magnesium pole 15 and the base plate 21 of exterior body 11, there is larger space.Like this, the part of the cell reaction being almost unprofitable to magnesium pole 15 can be reduced and the miniaturization of magnesium pole 15 can be realized.In addition, the lower end of the lower end of magnesium pole 15 and air pole 13 also can be made roughly to be in sustained height.
As shown in Figure 28 (A), the upper limb that the pair of right and left sidewall portion be connected with the left and right of rear wall parts 23 forms sheet 24R (being more specifically inner side bent sheet 24RU) is integrally provided with thin slice 71R.As shown in Figure 28 (C), these thin slices 71R is bonded on the lower surface of the first kink 25R1 of the cap as exterior body 11 by thermal welding.Therefore, sidewall portion can be improved and form bond strength between sheet 24R and the first kink 25R1, fully can keep the bending shape of rear wall parts 23, sidewall portion (sidewall portion forms sheet 24R) and cap (the first kink 25R1).
Equally, the upper limb that the pair of right and left sidewall portion be connected with the left and right of front wall portion 22 forms sheet 24F (being more specifically inner side bent sheet 24FU) is also integrally provided with thin slice 71F (Figure 28 (A)) respectively.As shown in Figure 28 (C), these thin slices 71F is bonded on the lower surface of the first kink 25F1 of the cap as exterior body 11 by thermal welding.Therefore, sidewall portion can be improved and form bond strength between sheet 24F and the first kink 25F1, fully can keep the bending shape of front wall portion 22, sidewall portion (sidewall portion forms sheet 24F) and cap (the first kink 25F1).
As described above, in the present embodiment, because the pole plate installation sheet 42 on the face of the opposition side of the air pole 13 by being arranged on magnesium pole 15 is integrally located on the sheet material for the formation of exterior body 11, so on the basis of the various effects of above-mentioned 4th execution mode, number of components can be reduced.
In addition, owing to pole plate installation sheet 42 to be located at cap (the first kink 25R1), so as shown in figure 26, can by pole plate installation sheet 42 Suspending fixation above more top than the base plate 21 of exterior body 11.Therefore, without the need to will the magnesium pole 15 be bearing on this pole plate installation sheet 42 will be used for is placed on the base plate 21 of exterior body 11, the degree of freedom of the lower end position of magnesium pole 15 can be improved.Therefore, even if can guarantee that larger injection water accumulates with the space of mixed electrolyte or the product (this structure is magnesium hydroxide) that generates because of exoelectrical reaction the space also not affecting cell reaction.
In addition, engage with the rear wall parts 23 of exterior body 11 due to the left and right of bending pole plate installation sheet 42, so can position, keep pole plate installation sheet 42, be not only easy to guarantee that the bearing strength of magnesium pole 15 (metal pole) can also keep the standoff distance between magnesium pole 15 and air pole 13 constant.
Metal-air cell of the present invention is not limited to above-mentioned execution mode, can carry out various distortion, change according to technical thought of the present invention.
Such as, also can the shape of appropriate change exterior body 11, also can the shape of appropriate change air pole 13 or magnesium pole 15.In addition, for the sheet material of exterior body 11 also can be used as sheet material beyond laminated paper, sheet material containing paper.
Describe following situation in the above-described first embodiment: the upper plate portion be connected with rear wall parts 23 is formed sheet 25R and split for benchmark with tab portion 15T, form sheet 25R by this upper plate portion and limit the movement of magnesium pole 15 to air pole 13 side and opposition side, but be not limited thereto, such as also can like this: the upper plate portion of front wall portion 22 is formed sheet 25F with tab portion 15T for benchmark and splitting, form sheet 25F by this upper plate portion and limit the movement of magnesium pole 15 to air pole 13 side and opposition side.
In addition, describe following situation in the above-described first embodiment: a pair upper plate portion formation sheet 25F, 25R are bent into L-shaped and move to limit magnesium pole 15, but also in the scope that can limit magnesium pole 15 movement, the bending mode of a pair upper plate portion formation sheet 25F, 25R can be changed.In addition, also can suitably limit in the scope of magnesium pole 15 movement, upper plate portion formation sheet one of 25F, 25R that magnesium pole 15 is supported can be saved.
In addition, describe following instance in the above-described embodiments: as exterior body 11, that the lower end had for magnesium pole 15 embeds, be bent into the base plate 21 protruding shape downwards, even if but base plate 21 is bent into shape protruding upward, also can keep the lower end of magnesium pole 15.Now, though magnesium pole 15 is not parallel with air pole 13, can prevent magnesium pole 15 from moving further.
In addition, in the present embodiment exemplified with following situation: each return portion or thin slice 26F, 26R, 71F, 71R fetch joint by hot melt, but joint method is not limited thereto, and also can adopt other joint methods such as supersonic thermal setting.
In addition, describe the magnesium air cell 10 of monocell in the respective embodiments described above, but use is not limited, according to used load voltage, electric current etc., multiple magnesium air cell 10 series, parallel can be connected use.In addition, mode when using also is not limited, such as, can bind multiple magnesium air cell 10 with strapping etc. or use in being housed in resin-made plastic casing or iron case etc.
Further, describe situation the present invention being applicable to magnesium air cell 10 in the respective embodiments described above, but be not limited thereto, also can be widely used in known metal-air cell.Metal or its alloys such as the extremely available zinc of such as metal, iron, aluminium.During the use zinc of metal pole, potassium hydroxide aqueous solution used for electrolyte, during the use iron of metal pole, alkaline aqueous solution used for electrolyte.In addition, during the use aluminium of metal pole, used for electrolyte containing NaOH or potassium hydroxide aqueous solution.
(metal-air cell unit)
Following explanation metal-air cell unit.
Existing metal-air cell have carry out stacked and that use (such as Japan real public clear 58-46535 publication).This by stacked for metal-air cell use time, usually larger gap is set in the front of the air pole of metal-air cell.
But this metal-air cell has following problem: the product produced because of interelectrode cell reaction floats at two interpolars and makes exterior body expand.If exterior body expands produce some problems: the gap in air pole front may be reduced or make gap disappear and make battery export decline.
Also have following problems in addition: if exterior body expands, the distance between air pole and metal pole strengthens, therefore also cause battery to export and decline.
Further, form the metal-air cell unit containing multiple metal-air cell, when connecting multiple accommodated metal-air cell and use, wish that metal-air cell unit is lighter.To this, the following describes the execution mode suppressing the expansion of the exterior body of metal-air cell, alleviate metal-air cell unit weight.
Figure 29 and Figure 30 is the stereogram of the metal-air cell unit 1 representing embodiments of the present invention.Metal-air cell unit 1 has the outer container 210 for accommodating multiple magnesium air cell 10, is configured with two transverse directions dividing plate 230 side by side and moves accidentally to prevent accommodated magnesium air cell 10 in this outer container 210.These outer containers 210 and dividing plate 230 are by the sheet material containing paper, more specifically for making cardboard be sandwich construction and the corrugated board that intensity is improved is made.
Figure 31 and Figure 32 is the stereogram of dividing plate 230, and Figure 33 is the vertical view of dividing plate 230, and Figure 34 is the end view of dividing plate 230.This dividing plate 230 is formed a sheet corrugated paper paperboard bending, and both sides are provided with two place's pit parts (battery container portion) 250.Magnesium air cell 10 is contained respectively in pit part 250.
Metal-air cell unit 1 total has four magnesium air cells 10, and as shown in figure 29, four magnesium air cells 10 are connected in series by distribution 90 and are connected with DC-DC conversion equipment 300.In addition, two distribution 90 mutually insulateds and merge into before being about to connect DC-DC conversion equipment 300.In addition, for magnesium air cell 10, the position corresponding with the position illustrated marks same Reference numeral and represents.
As shown in figure 35, magnesium air cell 10 has the exterior body 11 of the hollow box shape formed like this: by also overlapping for a bending sheet material doubling freely, engage its both side edges and bending process.Exterior body 11 is not only provided with air pole 13 but also contain the magnesium pole (metal pole) 15 opposed with air pole 13, the electrolyte such as salt solution can be added to liquid level UL.Magnesium air cell 10 is primary cells, and air pole 13 is used as positive pole, and magnesium pole 15 is used as negative pole.
Exterior body 11 integrally has rectangular bottom plate portion 21, rectangular front wall portion 22, rectangle rear wall parts 23, left and right sides wall portion 24.Front wall portion 22 is provided with rectangular aperture portion 22K, and peristome 22K place is configured with air pole 13.
The V-shaped protruded downwards when base plate 21 forms side-looking.The lower end of magnesium pole 15 is embedded the part 21T protruded downwards by base plate 21 inclined lead, can easily position the lower end of magnesium pole 15.
The upper end of front wall portion 22 and rear wall parts 23 can bend.First kink 25F1,25R1 suitably keeps the standoff distance between magnesium pole 15 and air pole 13, and second kink 25F2,25R2 supports the top of magnesium pole 15.The both sides of magnesium pole 15 are provided with gap SF, SR of same widths.
Figure 36 is the top partial perspective view before exterior body 11 top of magnesium air cell 10 is bent.As shown in Figure 35 and Figure 36, magnesium pole 15 (comprising not shown tab portion 15T) is housed in exterior body 11 completely, and second kink 25F2,25R2 is divided into three parts by two joint-cutting 25C respectively.
As shown in figure 36, the two end portions 25F2-1 of the second kink 25F2 inserts the upper proximal end of the magnesium pole 15 be housed in exterior body 11, and middle body 25F2-2 crosses the upper end of magnesium pole 15 and inserts inside.
On the other hand, the two end portions 25R2-1 of the second kink 25R2 of rear wall parts 23 crosses the top of magnesium pole 15 and inserts inside, and connects with the two end portions 25F2-1 of the second kink 25F2 of front wall portion 22.Middle body 25R2-2 inserts the near-end on the top of magnesium pole 15, and connects with the middle body 25F2-2 of the second kink 25F2 of front wall portion 22.Like this, the top of magnesium pole 15 is to be supported by the mode clamped thus to be securely held.
The kink 24U of upper end, sidewall portion 24 is bent into L-shaped.During assembling exterior body 11, the groove 25S being located at first kink 25F1,25R1 is inserted in the front end of kink 24U.Like this, can prevent first kink 25F1, the 25R1 etc. being bent processing from restoring and sealing the upper surface of exterior body 11.In addition, Tu36Zhong, the part represented with single dotted broken line is that folding part, peak is divided.In addition, the distribution be connected with magnesium pole 15 is introduced to outside exterior body 11 through the space of the bending place of exterior body 11.
Figure 37 is the expanded view of dividing plate 230.
Dividing plate 230 is formed sheet corrugated paper paperboard 270 bending.Corrugated paper paperboard 270 is stamped and cuts out with mould.
Dividing plate 230 is not limited to corrugated board 300, such as, can be formed with ground paper, or also usable resins film-making is formed.
The central portion of corrugated paper paperboard 270 is configured with upper surface connecting portion 234.Be configured with inner side surface portion 232,232 at the two ends of upper surface connecting portion 234 respectively through broken line 271,271, broken line 271,271 is rolled over by peak.Bottom surface sections 233,233 is connected with inner side surface portion 232,232 through broken line 273,273, and outer lateral side portion 231,231 is connected with bottom surface sections 233,233 through broken line 275,275.Broken line 273,273 and broken line 275,275 are rolled over by paddy.
The both sides in inner side surface portion 232,232 have pawl maintaining part 237,237 through broken line 237a, 237a.Pawl maintaining part 237,237 has upper jaw 236,236 through broken line 236a, 236a.
In addition, the both sides in inner side surface portion 232,232 have lower jaw 235,235 through broken line 235a, 235a.The both sides in outer lateral side portion 231,231 have pawl hole maintaining part 238 through broken line 238a, 238a.Pawl hole maintaining part 238 is cut and has pawl hole 239,239.
Upper surface connecting portion 234 is formed with a pair circular air oral area 246,246, the pars intermedia of these air oral areas 246,246 is formed with rectangular slot portion 245.
Inner side surface portion 232,232 leave members of frame 244 and is formed with air pole peristome 232K, air pole peristome 232K being formed with rectangular channel portion 232M.
Bottom surface sections 233,233 is configured with a pair across the floating support portion 251,251 to inner side surface portion 232,232, each comfortable both sides, floating support portion 251,251 have joint-cutting 251a, 251a, are respectively configured with three broken lines 251b, 251c, 251d between joint-cutting 251a, 251a.
The folding step of this dividing plate 230 is described.
First, broken line 271,271 peak at upper surface connecting portion 234 two ends is rolled over, the broken line 273,273 of its both sides and broken line 275,275 paddy folding.Like this, roughly W font state when bendable is converted into shown in Figure 32 side-looking.
Then, bend lower jaw 235,235 and lower jaw to be fitted together to each other.Like this, as shown in figure 34, pair of inside side surface part 232,232 remains parallel.In addition, the part of being surrounded by inner side surface portion 232,232 forms the delay portion as the gap making air trapping.
As shown in figure 32, pawl maintaining part 237,237 and pawl hole maintaining part 238 are bent, the pawl hole of the upper jaw 236,236 of pawl maintaining part 237,237 and pawl hole maintaining part 238 239,239 chimeric.Like this, as shown in figure 34, outer lateral side portion 231,231 remains parallel with inner side surface portion 232,232.The part of being surrounded by outer lateral side portion 231,231 and inner side surface portion 232,232 forms pit part 250.As shown in figure 31, pit part 250 contains magnesium air cell 10 respectively.Magnesium air cell 10 is accommodated like this: its air pole 13 is towards the air pole peristome 232K in inner side surface portion 232,232.
In addition, as mentioned above, with reference to Figure 37, bottom surface sections 233,233 is configured with a pair floating support portion 251,251, this floating support portion 251,251 has joint-cutting 251a, 251a, is respectively configured with three broken lines 251b, 251c, 251d between joint-cutting 251a, 251a.Therefore, when floating support portion 251 being pushed pit part 250,250 inside, broken line 251b is rolled over by paddy, and broken line 251c is rolled over by peak, and broken line 251d is rolled over by paddy.As shown in figure 34, floating support portion 251 is bent into L-shaped.This floating support portion 251 is with the base plate 21 (Figure 35) of the exterior body 11 of quick condition supporting magnesium air cell 10.Therefore, below protuberance 24L (Figure 35) being formed in base plate 21 two ends of exterior body 11 by sheet material bending process can not only be protected, magnesium air cell 10 also can be prevented damaged even if the bottom of outer container 210 is subject to impacting.
In addition, as the corrugated paper paperboard of dividing plate 230, also lamination process can be carried out with PE etc. to its surperficial single or double.Now can moisture in decrease uptake air, long-time preservation also can prevent deterioration.
Figure 38 is the expanded view of outer container 210.
Outer container 210 is formed sheet corrugated paper paperboard 220 bending.Corrugated paper paperboard 220 is stamped and cuts out with mould.
Outer container 210 is not limited to corrugated paper paperboard 220, such as, can be formed with ground paper, or also usable resins film-making is formed.
Corrugated paper paperboard 220, in the horizontal direction side by side of central portion, alternately has through broken line 311,313,315 and has tab side surface part 211 (211A, 211B), without tab side surface part 212 (212A, 212B).The top that the top of side surface part 211A is configured with short lid 221, side surface part 211B through broken line 321 is configured with insert cover 222 through broken line 323, and the top of side surface part 212B is configured with upper cover 223 through broken line 327.Insert cover 222 is configured with sheet 224 through broken line 325, sheet 224 is configured with tine 225.Upper cover 223 is configured with sheet 226 through broken line 328.Here cover is formed by short lid 221, insert cover 222, upper cover 223.
There is the following of tab side surface part 211 (211A, 211B) to be configured with bottom surface sections 215,215 through broken line 319, be configured with band Embedded Division bottom surface sections 216,216 without the following of tab side surface part 212 (212A, 212B) through broken line 320.Bottom surface sections 215,215 and band Embedded Division bottom surface sections 216,216 form bottom parts.
Corrugated paper paperboard 220 in the bending of broken line 311,313,315 place, the sheet 213 is connected with without tab side surface part 212B and have tab side surface part 211A to bond, the side surface part of formation outer container 210.Then, bottom surface sections 215,215 and band Embedded Division bottom surface sections 216,216 are fitted together to and form bottom parts.Further, as shown in figure 30, cover is formed by short lid 221, insert cover 222, upper cover 223.
As shown in figure 38, in the present embodiment, tab side surface part 211 (211A, 211B) is had respectively to establish four tabs (gap limiting part) 81.Tab 81 has tab 81A, 81A and a pair time tab 81B, 81B on a pair.Each tab 81 is same modality, is connected to side surface part 211 through cutting open reservations 82, such as perforated lines or joint-cutting etc.The front end of each tab 81 is formed with claw 81C.Each tab 81, when cutting open reservations 82 portion 211 cutting open from the side, is linked by linking part 83 and side surface part 211.The width W of each tab 81 (81A, 81B) is formed be same as the inside dimension W2 (Figure 32) in the inner side surface portion 232,232 of dividing plate 230.The length L3 (Figure 38) of each tab 81 is formed be same as the length L4 of pawl maintaining part 237,237 to groove portion 232M from dividing plate 230 shown in Figure 31.
As shown in figure 29, this outer container 210 like this collecting magnesium air cell 10: with make air pole 13 through delay portion 260 mode in opposite directions and accommodated two dividing plates 230 (Figure 31), two transverse directions are accommodated abreast mutually.After dividing plate 230 is accommodated, upper tab 81A, 81A and lower tab 81B, 81B are pushed into the inner side of outer container 210.Like this, each tab 81 is projected in outer container 210 from the both sides of outer container 210.
The claw 81C (Figure 38) of each tab 81 is chimeric with groove portion 232M (Figure 31), shifts the top or following being stuck in groove portion 232M to the inside onto.
In the present embodiment, width W due to each tab 81 being located at outer container 210 is formed be same as the inside dimension W2 (Figure 32) in the inner side surface portion 232,232 of dividing plate 230, so each tab 81 is pulled to the interior rear flank of outer container 210, limit the size W2 between inner side surface portion 32,32 by the rigidity of each tab 81.Usually, produce product because of cell reaction between the air pole 13 of magnesium air cell 10, magnesium pole 15, float and front wall portion 22 expanded in the space of this product between air pole 13, magnesium pole 15, its result makes air pole 13 expand.
In the present embodiment, suppress exterior body 11 to expand by the rigidity of each tab 81, the width W 2 in the delay portion 260 in the front of air pole 13 can be guaranteed by regulation.Therefore, can prevent from electric power from exporting to decline.Further, due to exterior body 11 can be suppressed to expand, so the distance between air pole 13 and magnesium pole (metal pole) 15 can be kept to be in the distance of regulation, this also can prevent electric power from exporting decline.
Length L3 (Figure 38) due to each tab 81 is formed be same as the length L4 of pawl maintaining part 237,237 to groove portion 232M from dividing plate 230 shown in Figure 31, so each tab 81 can push down the members of frame 244 in the outside of air pole peristome 232K.Therefore, air pole peristome 232K is not blocked by each tab 81.
In addition, as shown in figure 31, also the limiting part 85 limiting gap between the two can be configured between the inner surface of pawl hole maintaining part 238 and magnesium air cell 10.The gap of the Width of magnesium air cell 10 can be kept by above-mentioned each tab 81, kept the gap of the length direction of magnesium air cell 10 by this limiting part 85.
In addition, as the corrugated paper paperboard 220 of outer container 210, also lamination process can be carried out with PE etc. to its surperficial single or double.Now can moisture in decrease uptake air, long-time preservation also can prevent deterioration.
In the present embodiment, be formed with the delay portion 260 surrounded by inner side surface portion 232,232 at the central portion of dividing plate 230, the opening (air-through holes) of the outer container 210 of this delay portion 260 through being pushed down by each tab 81 is communicated with the outside of outer container 210.Therefore, the air outside outer container 210 can be made all the time to import to the air pole 72 of magnesium air cell 10 through the air pole peristome 232K of delay portion 260 and dividing plate 230.
Due to the upper surface connecting portion 234 of dividing plate 230 being formed with air oral area 246,246, so the air entering delay portion 260 is back in outer container 210 through air oral area 246,246.Therefore, even if the inside of outer container 210 during heating, also can keep suitable temperature with Air flow because of the reaction of magnesium air cell 10.
When together being accommodated in outer container 210 with magnesium air cell 10 by dividing plate 230, this air oral area 246,246 also can be used as finger hook.
In the present embodiment, dividing plate 230 and outer container 210 all use a corrugated paper paperboard 270,220 assembling to make.Therefore, with make the situation of dividing plate 230 or outer container 210 of metal compared with, can weight reduction.
As shown in figure 29, in the present embodiment, cover is made up of short lid 221, insert cover 222, upper cover 223.As shown in figure 30, short lid 221 and insert cover 222 can be made when opening upper cover 223 to expose.
The broken line 325 place bending of sheet 224 shown in Figure 38 of this insert cover 222, as shown in figure 30, is located at the tine 225 on sheet 224 chimeric with the groove portion 245 of the upper surface connecting portion 234 of dividing plate 230.This insert cover 222 covers distribution 90, and under preventing the state opening upper cover 223, this distribution 90 tangles other objects and has an accident.In addition, DC-DC conversion equipment 300 is housed under short lid 221, opens upper cover 223 and insert cover 222 and takes out, can be used for chargings such as mobile phones after injecting the electrolyte into magnesium air cell 10 when user uses.
In addition, the present invention is not limited thereto.Such as relative to the delay portion 260 be formed on dividing plate 230, tab 81 is set at two places, also can only establishes a place, also can establish more than three places.
Further, also can push tab 81 before will using unit 1, now, the opening of the outer container 210 formed by pushing tab 81 in keeping is before the use plugged, so can protect air pole 13, therefore preferably.
Further, members of frame 244 also can be formed with dividing plate 230 split, and owing to having this members of frame 244, the repression of swelling effect brought by tab 81 can benefit the complete cycle of the wall portion of exterior body 11, therefore preferably.
Further, also can form reverse U shape dividing plate 230 and make this dividing plate 230 be between magnesium air cell 10, multiple plate-shaped bodies overlapping use.Also have, the gap for air entrapment formed in the face of air pole 13 is not limited to utilize dividing plate 230 to be formed, also can be formed like this: in outer container 210, configuration is formed with the plate for the through hole of magnesium air cell 10 up and down, magnesium air cell 10 is inserted in this hole and forms gap, or only tab 81 pushed between magnesium air cell 10 and formed, but the structure in preferred implementation.
Further, also tab 81 can be saved.Figure 39 and Figure 40 indicates the embodiment of the metal-air cell unit 1 without tab 81.In the embodiment shown in Figure 39, the side surface part 211A intersected vertically with magnesium air cell 10,211B be provided with air-through holes 92 roughly on the whole, metal-air unit 1 employs such outer container 210, be more specifically be provided with equally spaced each seven air-through holes 92 in length and breadth at each side surface part 211A, 211B.
By side surface part 211A, 211B air-through holes 92 is set roughly on the whole, clearance spaces (the delay portion 260 in dividing plate 230 or the space etc. above dividing plate 230) in outer container 210 can be made through air-through holes 92 and ft connection.
Therefore, can by the reaction because of magnesium air cell 10 temperature rise inner air be discharged to outside through air-through holes 92, in addition, also can cool magnesium air cell 10 with extraneous air.Therefore, each magnesium air cell 10 in outer container 210 can not only be kept to be in suitable temperature be also easy to make temperature equalization.
The identical point of the embodiment shown in Figure 40 and Figure 39 arranges air-through holes 92 at a pair side surface part 211A, 211B, but be that air-through holes 92 is only located at the region be communicated with the clearance spaces of outer container 210 (the delay portion 260 in dividing plate 230 or the space etc. above dividing plate 230) with the difference of Figure 39.
Adopt this structure also can by the reaction because of magnesium air cell 10 temperature rise inner air be discharged to outside through air-through holes 92, in addition, also can cool magnesium air cell 10 with extraneous air.That is, only air-through holes 92 is set in the region being of value to cooling magnesium air cell 10, and air-through holes 92 is not set in the region being unprofitable to cool magnesium air cell 10.
Therefore, can reduce the quantity of air-through holes 92 or reduce the gross area of air-through holes 92, this point is also correspondingly easy to the intensity improving outer container 210.In addition, in Figure 39 and Figure 40, the sheet 224 turned back in the below of the cover (insert cover 222) to outer container 210 is provided with the hole 90H passed for distribution 90.
(being easy to make metal-air cell again start to carry out the structure of cell reaction)
In existing metal-air cell, metal pole uses the alloy (such as with reference to Japanese Unexamined Patent Publication 2012-234799 publication) being furnished with other elements except the metallic element as main reaction material.Record in this patent documentation: for suppressing the self discharge reaction of metal pole to produce hydrogen, metal pole uses and is added with the magnesium alloy such as aluminium (Al) or zinc (Zn).
Known above-mentioned Addition ofelements forms the protection overlay film suppressing hydrogen to produce and has much relations with hindering the autoreaction of alloy surface.Learning after the research such as inventor: protection overlay film hinders cell reaction sometimes, when wanting to reuse battery after stopping using stopping using battery, being likely difficult to again start to carry out cell reaction.
To this, the following describes the system configuration (hereinafter referred to as metal-air battery system 10S) being easy to the magnesium air cell 10 making cell reaction again start to carry out.In addition, metal-air battery system 10S is applicable to above-mentioned metal-air cell unit 1.Further, corresponding with the position illustrated position marks same Reference numeral and represents.
(the first execution mode of metal-air battery system)
Figure 41 is the figure of the structure of the metal-air battery system 10S representing first embodiment of the invention.
This metal-air battery system 10S has multiple (in this structure being four) the magnesium air cell 10 for component unit battery (battery of monocell).Each magnesium air cell 10 has a pair magnesium pole (metal pole) 15 and air pole 13, is the primary cell oxygen in air being used for electrochemical reaction and generating electricity.When carrying out this electrochemical reaction (cell reaction), magnesium pole 15 is used as negative pole, and air pole 13 is used as positive pole.
Multiple magnesium air cell 10 is connected in series, and the magnesium pole 15 at two ends and air pole 13 are connected with DC-DC conversion equipment (power inverter) 300.Do not need to these multiple magnesium air cells 10 carry out differentiation illustrate time be designated as battery pack 10A.
DC-DC conversion equipment 300 has direct current is converted to different galvanic change-over circuit 301.Like this, the direct current exported by battery pack 10A is converted into the direct current that is suitable for mobile phone charging etc. and is exported by metal-air battery system 10S.
That is, DC-DC conversion equipment 300 plays the effect of the power inverter being converted to the electric power being suitable for user's equipment.Therefore, if user's equipment is, when also needing the equipment of large current value or magnitude of voltage than mobile phone, be easy to correspondence by changing DC-DC conversion equipment 300.In addition, this DC-DC conversion equipment 300 also can have the structure that output power can be switched to the handoff functionality of various electric power.In addition, the structure with the DC-AC conversion equipment being converted to alternating current can also be adopted.
When using this metal-air battery system 10S, between magnesium pole 15 and air pole 13, filling can dissolve from magnesium pole 15 electrolyte of magnesium ion.
Be specially, electrolyte uses and contains as the chloride ion of anion and the aqueous solution as at least one party in cationic alkali metal ion (Li, Na, K, Rb, Cs, Fr), alkaline-earth metal ion (Be, Mg, Ca, Sr, Ba, Ra).In the present embodiment, consider fail safe and good conductivity, use the sodium-chloride water solution containing sodium ion as electrolyte.
Magnesium pole 15 uses AZ31 or AZ61, the AZ91 etc. that magnesium is 96%, aluminium is 3%, zinc is the ASTM specification of 1%.In addition, be not limited to, according to the material of ASTM specification, also can use known Mg-Al-Zn alloy.In addition, also can add the element beyond aluminum and zinc, such as, can add other elements such as Si, Cu, Li, Na, K, Fe, Ni, Ti, Zr.
In the magnesium air cell 10 of this structure, each autoreaction of air pole 13 and magnesium pole 15 is as follows.
(air pole) O
2+ 2H
2o+4e-→ 4OH-
(magnesium pole)
The electric power generation reaction of magnesium: Mg+2OH-→ Mg (OH)
2+ 2e-
The self discharge of magnesium: Mg+2H
2o → Mg (OH)
2+ H
2
The electric power generation reaction of zinc: Zn+4OH-→ Zn (OH)
4 2-+ 2e-
In electrolyte: Zn (OH)
4 2-→ ZnO+H
2o+2OH-
The electric power generation reaction of aluminium: Al+3OH-→ Al (OH)
3+ 3e-
Usually, because magnesium is reactive material preferably, therefore easily self discharge is produced as described above.
In this structure, by using above-mentioned magnesium alloy, hindering the self discharge on surface, magnesium pole 15 by the oxide (such as zinc oxide) produced because of cell reaction and forming the protection overlay film suppressing hydrogen to produce, self discharge can be suppressed to react.
But learn after the research such as inventor: protection overlay film also hinders cell reaction (electric power generation reaction), when wanting to reuse battery after stopping using stopping using battery, cell reaction cannot start fully again, cannot send required electric current.When being especially added with zinc, being easy to occur cannot the situation of generation current.
To this, in the present embodiment, open and close type short circuit current 331 is set between the magnesium pole 15 and air pole 13 of magnesium air cell 10.Between the magnesium pole 15 that this open and close type short circuit current 331 is connected to the two ends of the magnesium air cell 10 be connected in series and air pole 13, structure is that user can the manual gas shut off (so-called hand switch) of manual opening and closing.
In addition, by this open and close type short circuit current 331 is closed by opening to switch to, can be formed comprise all magnesium air cells 10 air pole 13, magnesium pole 15 closed circuit, be and make the closed circuit of all magnesium air cells 10 short circuit.Like this, temporarily make larger current flow to magnesium air cell 10 by force, dissolve the protection overlay film (also referred to as passive state overlay film, passive state coating layer) being formed in surface, magnesium pole 15 in the electrolytic solution, make it expose new metal surface.
Therefore, stop using after battery, by open and close type short circuit current 331 is temporarily closed by opening to switch to, can easily secondary magnesium air cell 10 and return the state again starting to carry out cell reaction.
So, by the short circuit current 331 after making regeneration by close return out just can again carry out cell reaction, sufficient electric current can be exported immediately.Like this, as long as connect user's equipment at the outlet side of metal-air battery system 10S, the electric power being suitable for driving this user's equipment or carrying out charging can just be provided immediately.
In addition, owing to making it short circuit under the state be connected in series by all magnesium air cells 10, thus with arrange compared with the situation of open and close type short circuit current 331 at each magnesium air cell 10, can not only be easy to that big current is flowed can also reduce number of components.
Further, as shown in figure 41, open and close type short circuit current 331 is located in DC-DC conversion equipment 300.Therefore, the exterior body etc. of this DC-DC conversion equipment 300 can be utilized to accommodate short circuit current 331, without the need to the exterior body etc. that short circuit current 331 is special.In addition, owing to being the structure that short circuit current 331 is inserted between the magnesium pole 15 of battery pack 10A and air pole 13, so for the existing metal-air battery system without short circuit current 331, can easily carry out additional short circuit current 331.
In addition, as shown in Figure 41, owing to short circuit current 331 to be located at the input side (magnesium air cell 10 side) of change-over circuit 301, so can close closed circuit switched to there is not change-over circuit short circuit current 331, this point also can correspondingly reduce closed circuit in resistance.Therefore, big current (short circuit current) effectively can be made to flow, be easy to secondary magnesium air cell 10.
In addition, owing to having short circuit current 331 in DC-DC conversion equipment 300, as long as so take off DC-DC conversion equipment 300 just can take off short circuit current 331, the dismounting of short circuit current 331 becomes easy.Thus, the upkeep operation such as replacing, inspection of short circuit current 331 can also easily be carried out.
As described above; metal-air battery system 10S due to present embodiment has the open and close type short circuit current 331 as the closed circuit circuit optionally forming the magnesium pole 15 comprising and form negative pole and the air pole 13 forming positive pole; even if so because of the impact etc. of the protection overlay film (passive state overlay film) of magnesium pole 15 battery is stopped after being difficult to again start to carry out cell reaction time, be also easy to again start to carry out cell reaction.
In addition, this short circuit current 331 is located between the magnesium pole 15 of battery pack 10A and air pole 13, can easily arrange.Therefore, can peventing member quantity increase or device becomes large, be easy to reduce costs.
In addition, because this open and close type short circuit current 331 is made up of manual gas shut off, therefore this also simplified structure and user can be easy to operation.
In addition, describe the situation of battery pack 10A side short circuit current 331 being located at DC-DC conversion equipment 300 in the present embodiment, but as shown in figure 42, also short circuit current 331 can be located at the outlet side of DC-DC conversion equipment 300, or be located at outside DC-DC conversion equipment 300.That is, the position of short circuit current 331 can appropriate change.
(the second execution mode of metal-air battery system)
Figure 43 (A) is the figure of the structure of the metal-air battery system 10S representing the second execution mode.In addition, in the following description, same reference numerals is marked to the structure identical with the first execution mode and omits repeat specification,
In this second embodiment, open and close type conductive discharge circuit 333 is set between the magnesium pole 15 and air pole 13 of battery pack 10A.This conductive discharge circuit 333 is made up of resistance and switch.Adopt this conductive discharge circuit 333, also by switch is temporarily comprised the closed circuit of battery pack 10A by opening to switch to close and formed.Therefore, the same with the metal-air battery system 10S of the first execution mode, battery can be made temporarily to make big current flow and redgenerated cell after a stop by force by simple structure.Like this, can obtain and be easy to by simple structure the various effects that again start to carry out cell reaction etc., be same as the first execution mode.
Figure 43 (B) represents the concrete example of conductive discharge circuit 333 applicable circuit protector switch 333S.Circuit brake switch 333S is so a kind of switch: can by switch 333S from switch when opening and switch to the current value of closed circuit middle flowing when closing to exceed the threshold value preset being switch opens, also referred to as circuit brake.
By using circuit brake switch 333S, before current value exceedes the setting being set in below allowable current, automatically switch opens can be made, easy protective circuit etc.In addition, not only can not carry out switch opens operation but also can not discharge without authorization, so discharged power loss can also be reduced.In addition, because circuit brake switch 333S is the parts widely circulated, be therefore conducive to reducing costs.
In Figure 43 (A) and Figure 43 (B); describe situation conductive discharge circuit 333 being located at (comprising circuit brake switch 333S) the battery pack 10A side of DC-DC conversion equipment 300; but as shown in figure 44; also conductive discharge circuit 333 can be located at the outlet side of DC-DC conversion equipment 300, or be located at outside DC-DC conversion equipment 300.That is, the position of conductive discharge circuit 333 can appropriate change.
(the 3rd execution mode of metal-air battery system)
Figure 45 (A) is the figure of the structure of the metal-air battery system 10S representing the 3rd execution mode.3rd execution mode represents the metal-air battery system 10S without DC-DC conversion equipment 300.In this metal-air battery system 10S, being also by arranging open and close type short circuit current 331 between the magnesium pole 15 and air pole 13 of battery pack 10A, the various effects being easy to again start to carry out cell reaction etc., be same as the first execution mode can be obtained.
(the 4th execution mode of metal-air battery system)
Figure 45 (B) is the figure of the structure of the metal-air battery system 10S representing the 4th execution mode.The structure of the 4th execution mode is for arranging conductive discharge circuit 333 to replace the short circuit current 331 of Figure 45 (A).Adopt this structure, the various effects of the metal-air battery system 10S being same as the second execution mode can be obtained.In addition, also can at conductive discharge circuit 333 applicable circuit protector switch 333S.
(the 5th execution mode of metal-air battery system)
Figure 46 is the figure of the structure of the metal-air battery system 10S representing the 5th execution mode.
5th execution mode is provided with integrating electric test section 335.This integrating electric test section 335 has following functions: carry out adding up to the current value in the closed circuit flowing comprising magnesium air cell 10 and detect the function of integrating electric value; According to integrating electric value, short circuit current 331 is switched to the auto-switch function of switch opens.
By detecting integrating electric value, the information that can judge whether to have regenerated magnesium air cell 10 can be obtained.For auto-switch function, preset threshold value, such as, when arriving the integrating electric value needed for secondary magnesium air cell 10 short circuit current 331 is switched to switch opens.Like this, automatically switch to open circuit when integrating electric value reaches threshold value and terminate regeneration actions.Therefore, not only operate without the need to the user carried out for switching to open circuit but also discharged power loss can also be reduced.
Widely known circuits can be suitable for about integrating electric test section 335.
In addition, as variation, also auto-switch function can be saved.Now, this situation is informed user when the integrating electric value detected reaches setting by preferred integrating electric test section 335.Like this, for user, it can be made to know the moment of carrying out switching manipulation.Thus, user can inscribe and carry out switching manipulation when suitable.In addition, as the device of informing user, can widely be suitable for by bright light or display and the display unit of transmission of information, by known informing devices such as the voice outputs of transmission sound information.In addition, also can replace short circuit current 331 and conductive discharge circuit 333 is set.
In addition, in present embodiment, detect integrating electric value, carry out the switching over action of short circuit current 331 according to its value, but also can replace integrating electric value and detect current value, carry out the switching over action of short circuit current 331 according to its value.
(the 6th execution mode of metal-air battery system)
Figure 47 is the figure of the structure of the metal-air battery system 10S representing the 6th execution mode.
6th execution mode is provided with time detecting portion 337.This time detecting portion 337 has following functions: detect (mensuration) function in the elapsed time of closed circuit; According to the elapsed time detected short circuit current 331 switched to the auto-switch function of switch opens.
By detecting the elapsed time, the information that can judge whether to have regenerated magnesium air cell 10 can be obtained.For auto-switch function, preset threshold value, such as, when arriving the elapsed time needed for secondary magnesium air cell 10 short circuit current 331 is switched to switch opens.Like this, automatically switch to open circuit when the elapsed time reaches threshold value and inscribe end regeneration actions when suitable.Therefore, not only operate without the need to the user carried out for switching to open circuit but also discharged power loss can also be reduced.
Widely known circuits can be suitable for about time detecting portion 337.
In addition, as variation, also auto-switch function can be saved.Now, this situation is informed user when the elapsed time detected reaches setting by preferred time detecting portion 337.Like this, for user, it can be made to know the moment of carrying out switching manipulation, user can carry out switching manipulation in the suitable moment.In addition, also can replace short circuit current 331 and conductive discharge circuit 333 is set.
Metal-air battery system 10S of the present invention is not limited to above-mentioned execution mode, can carry out various distortion, change according to technical thought of the present invention.Such as in the above-described embodiment, describe the situation that the present invention is applicable to have the magnesium air cell 10 of the magnesium pole 15 that with the addition of aluminum and zinc, but be not limited thereto, also the present invention can be applicable to the metal-air cell of the Mg-Zn system alloy that at least with the addition of zinc.
Further, even if to there is the metal-air cell of the magnesium pole not containing zinc or there is the metal-air cell of the metal pole beyond magnesium, also applicable the present invention.In other words, for the metal-air cell that may be difficult to after a stop because of raw material of metal pole etc. again start to carry out cell reaction, widely the present invention can be suitable for.
Be explained above and implement mode of the present invention, but the invention is not restricted to above-mentioned execution mode, various distortion, change can be carried out according to technical thought of the present invention.
Claims (46)
1. a metal-air cell, it possesses exterior body, and this exterior body has air pole and accommodates the metal pole opposed with described air pole, wherein,
Described exterior body is formed by the sheet material containing paper.
2. metal-air cell according to claim 1, is characterized in that,
Described sheet material is by the paper of heat sealability resin by lamination process.
3. metal-air cell according to claim 1 and 2, is characterized in that,
Described sheet material across covering described metal pole with gap, and possesses the part that bends described sheet material integratedly and crosses described gap and support the supporting kink of described metal pole.
4. metal-air cell according to claim 3, is characterized in that,
Described metal pole is remained on the position be separated with described air pole by described supporting kink.
5. metal-air cell according to claim 4, is characterized in that,
Described supporting kink has the first kink of bending towards described metal pole from least one party being positioned at the wall portion of the wall portion of described air pole side and the opposition side of described air pole relative to the described metal pole described sheet material and from the front end bending of described first kink and the second kink abutted with described metal pole.
6. metal-air cell according to claim 5, is characterized in that,
Described first kink is arranged on the position more closer to the top than the liquid level of the electrolyte in described exterior body, and oliquely downward tilts towards described metal pole.
7. the metal-air cell according to any one of claim 3 ~ 6, is characterized in that,
Described metal has tab portion outstanding upward, and described supporting kink is extended in the width of whole described metal pole,
Described supporting kink is on the Width of described metal pole, with described tab portion and the boundary line of non-tab portion that there is not described tab portion divided for benchmark, arbitrary cutting part in the cutting part of described tab portion side and the cutting part of described non-tab portion side limits the movement of described metal pole to air pole side, and another cutting part limits the movement of described metal pole to the opposition side of air pole.
8. the metal-air cell according to claim 4 or 5, is characterized in that,
Described supporting kink has return portion, this return portion from the wall portion of the opposition side of the wall portion of described air pole side and described air pole along described metal pole to lateral buckling in exterior body and to the opposition side bending inside this exterior body, and it is more outstanding to exterior external side than described metal pole
Clamp described metal pole by a part for each return portion, and the part be projected into outside exterior body of remainder is bonded with each other and closes between return portion.
9. the metal-air cell according to any one of claim 1 ~ 8, is characterized in that,
Described exterior body has base plate, and this base plate is bent into the downward protrusion shape that the lower end for described metal pole embeds.
10. the metal-air cell according to any one of claim 1 ~ 9, is characterized in that,
Described exterior body has thin slice, and this thin slice is connected with the cap of the top covering described metal pole and engages with the sidewall portion of the side covering described metal pole.
11. metal-air cells according to any one of claim 1 ~ 10, is characterized in that,
Described metal-air cell possesses base piece portion, and this base piece portion is sheet material containing paper and is bent into the downward protrusion shape that the lower end for described metal pole embeds,
At least one party of the front and back pair of end portions in described base piece portion engages with the sheet material forming described exterior body.
12. metal-air cells according to claim 11, is characterized in that,
The sheet material forming described exterior body is bent into concavity uncovered upward and forms the base plate of described exterior body,
Described base piece portion has a pair rising portion, the lower end of described metal pole is embedded between described a pair rising portion, wherein, under the state that the sheet material forming described exterior body is plane expansion, when at least one party of the front and back pair of end portions in described base piece portion is to be bent into described concavity uncovered upward across the mode of described base plate engages with this sheet material by this sheet material, described a pair rising portion with described bottom parts from mode hold up inside exterior body.
13. metal-air cells according to any one of claim 1 ~ 12, is characterized in that,
Described metal extremely in described air pole opposition side face on be provided with electrolyte host body, the collecting of this electrolyte host body by injecting water in described exterior body for as battery operated electrolyte.
14. metal-air cells according to claim 13, is characterized in that,
Described electrolyte host body have as the sheet material containing paper and be arranged on described metal extremely in described air pole opposition side face on pole plate installation sheet and engage with described pole plate installation sheet and accommodate described electrolytical bag.
15. metal-air cells according to claim 14, is characterized in that,
Described pole plate installation sheet crimping is fixed on described metal and extremely goes up, and described bag welding is on described pole plate installation sheet.
16. metal-air cells according to claims 14 or 15, is characterized in that,
Described pole plate installation sheet has limiting unit, and a part for this sheet bending is limited the movement of described metal pole relative to this sheet by this limiting unit,
By described pole plate installation sheet is remained on described exterior body, thus described metal pole is remained on described exterior body.
17. metal-air cells according to claim 1, is characterized in that,
Described sheet material is across covering described metal pole with gap, and at least inner surface side is formed liquid-impermeable,
Be provided with the peristome installing described air pole from outer surface side at described exterior body, the end face of described peristome is implemented the end face processing soaked into preventing from being injected into inner electrolyte.
18. metal-air cells according to claim 17, is characterized in that,
As described end face processing, turned back toward the outer side in the edge of the described sheet material of the end face of described peristome.
19. metal-air cells according to claim 17 or 18, is characterized in that,
As described end face processing, the end face of described peristome is covered by the liquid-impermeable material of sheet.
20. metal-air cells according to claim 19, is characterized in that,
Liquid-impermeable material described in two surface mount of described sheet material, and make described liquid-impermeable material be engaged with each other and cover described end face.
21. metal-air cells according to claim 19, is characterized in that,
Described liquid-impermeable material is utilized to encase described end face and cover described end face.
22. metal-air cells according to any one of claim 17 ~ 19, is characterized in that,
The end face of described peristome is implemented the described end face processing of the medicament of dipping hydrophobe.
23. metal-air cells according to claim 17, is characterized in that,
As described end face processing, from described sheet material to described air pole entirety coating hot solvent, and covered the end face of described peristome by described hot solvent.
24. metal-air cells according to claim 17, is characterized in that,
As described end face processing, from described sheet material to the liquid-impermeable material of the overall pasted sheet-shaped of described air pole, and covered the end face of described peristome by described liquid-impermeable material.
25. metal-air cells according to claim 24, is characterized in that,
Described liquid-impermeable material is in one-piece type frame-shaped extended in the edge of whole described peristome.
26. metal-air cells according to claim 24, is characterized in that,
Multiple OBL liquid-impermeable material connects to become the mode of frame-shaped extended in the edge of whole described peristome by described liquid-impermeable material.
27. metal-air cells according to claim 1, is characterized in that,
Described metal pole be inject not form passive state overlay film before electrolyte on surface, the oxide that produced by the cell reaction after injecting electrolyte and be formed with the metal pole of passive state overlay film on surface,
There is described metal pole and the described metal-air cell of described air pole have in order under removing state that described passive state overlay film is not connected load, optionally form the closed circuit circuit comprising described metal pole and described air pole.
28. metal-air cells according to claim 27, is characterized in that,
Described circuit is the short circuit current of the open and close type be located between described metal pole and described air pole.
29. metal-air cells according to claim 28, is characterized in that,
Described circuit is the conductive discharge circuit of the open and close type be located between described metal pole and described air pole.
30. metal-air cells according to claim 29, is characterized in that,
The circuit brake switch of described conductive discharge circuit to be the current value flowed in the circuit when exceeding setting be switch opens.
31. metal-air cells according to any one of claim 27 ~ 30, is characterized in that,
Be connected in series with the multiple unit cells comprising described metal pole and described air pole,
Between the described metal pole described circuit being located at the two ends of the battery pack be made up of described multiple unit cells and described air pole.
32. metal-air cells according to any one of claim 27 ~ 31, is characterized in that,
Described metal-air cell is provided with the current detecting part detected at the current value of described closed circuit middle flowing.
33. metal-air cells according to claim 32, is characterized in that,
Described current detecting part is make described circuit in the circuit of open circuit according to the current value detected.
34. metal-air cells according to any one of claim 27 ~ 31, is characterized in that,
Described metal-air cell is provided with the integrating electric test section detected in the integrating electric value of described closed circuit middle flowing.
35. metal-air cells according to claim 34, is characterized in that,
Described integrating electric test section is make described circuit in the circuit of open circuit according to the integrating electric value detected.
36. metal-air cells according to any one of claim 27 ~ 31, is characterized in that,
Described metal-air cell be provided with detect from described closed circuit the time detecting portion in elapsed time.
37. metal-air cells according to claim 36, is characterized in that,
Described time detecting portion makes described circuit in the circuit of open circuit according to the elapsed time detected.
38. metal-air cells according to any one of claims 1 to 37, is characterized in that,
Described metal pole is formed by the magnesium alloy at least containing zinc.
39. 1 kinds of metal-air cell unit, is characterized in that,
Multiple metal-air cells according to any one of claims 1 to 38 are separated be detained and have being housed in outer container with gap of air, and possess in the side surface part of described outer container the tab being projected into and supporting described exterior body in described gap.
40., according to metal-air cell unit according to claim 39, is characterized in that,
Described tab arranges multiple along the vertical direction and at spaced intervals in the side surface part of described outer container.
41. metal-air cell unit according to claim 39 or 40, is characterized in that,
Between described metal-air cell, be configured with dividing plate and described tab is locked on described dividing plate.
42. metal-air cell unit according to claim 41, is characterized in that,
Described dividing plate is the dividing plate of stereo structure, and has the delay portion making air trapping at central portion, has make air pole opposed and the pit part configuring metal-air cell in the both sides in this delay portion.
43. metal-air cell unit according to claim 42, is characterized in that,
Described dividing plate is that spatially shape is formed by the bending of the corrugated board of a sheet.
44. metal-air cell unit according to any one of claim 39 ~ 43, is characterized in that,
Be configured with members of frame in the side of described exterior body, be configured with described air pole at the peristome of this members of frame, and support described members of frame by described tab.
45. metal-air cell unit according to any one of claim 39 ~ 44, is characterized in that,
Described outer container is made of paper.
46. metal-air cell unit according to claim 45, is characterized in that,
Described tab links with the side surface part of described outer container via the cutting open reservations an of part, described in cut open reservations and cut open and be projected in described gap and support described air pole.
Applications Claiming Priority (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-238628 | 2013-11-19 | ||
| JP2013238628 | 2013-11-19 | ||
| JP2014-009265 | 2014-01-22 | ||
| JP2014009265A JP5687782B1 (en) | 2014-01-22 | 2014-01-22 | Metal air battery |
| JP2014017606 | 2014-01-31 | ||
| JP2014-017606 | 2014-01-31 | ||
| JP2014017122A JP5684929B1 (en) | 2014-01-31 | 2014-01-31 | Metal air battery |
| JP2014-017122 | 2014-08-06 | ||
| JP2014185154A JP5687795B1 (en) | 2013-11-19 | 2014-09-11 | Metal air battery |
| JP2014-185154 | 2014-09-11 | ||
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| JP2014229002A JP5690443B1 (en) | 2014-01-31 | 2014-11-11 | Metal-air battery unit |
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| CN104617354A true CN104617354A (en) | 2015-05-13 |
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| CN201410665137.9A Pending CN104617354A (en) | 2013-11-19 | 2014-11-19 | Metal-air battery and metal-air battery unit |
| CN201420699228.XU Active CN204516873U (en) | 2013-11-19 | 2014-11-19 | Metal-air cell and metal-air cell unit |
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| CN201420699228.XU Active CN204516873U (en) | 2013-11-19 | 2014-11-19 | Metal-air cell and metal-air cell unit |
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| CN (2) | CN104617354A (en) |
| TW (1) | TWI500205B (en) |
| WO (1) | WO2015076172A1 (en) |
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| CN111095669A (en) * | 2017-09-26 | 2020-05-01 | 藤仓复合材料科技有限公司 | Metal-air battery and method for removing oxide film |
| CN111095669B (en) * | 2017-09-26 | 2021-03-16 | 藤仓复合材料科技株式会社 | Metal-air battery and method for removing oxide film |
| CN112585804A (en) * | 2018-08-24 | 2021-03-30 | 藤仓复合材料科技株式会社 | Metal-air battery and use method thereof |
| CN112585804B (en) * | 2018-08-24 | 2024-04-02 | 藤仓复合材料科技株式会社 | Metal-air battery and method of use thereof |
| CN110071307A (en) * | 2019-04-29 | 2019-07-30 | 北京理工大学 | A kind of metal-air battery system and vehicle |
| CN111905302A (en) * | 2019-05-08 | 2020-11-10 | 代傲航空(吉尔兴)有限公司 | Apparatus and method for inerting a space |
| US11648510B2 (en) | 2019-05-08 | 2023-05-16 | Diehl Aviation Gilching Gmbh | Apparatus and method for inerting a space |
| CN111398001A (en) * | 2020-04-01 | 2020-07-10 | 中国船舶重工集团公司第七二五研究所 | Method for preparing corrosion pit on metal material sample |
| CN113258171A (en) * | 2021-04-01 | 2021-08-13 | 湖南汇动新材料有限公司 | Preparation method of magnesium-based metal-air battery, magnesium-based metal-air single battery and magnesium-based metal-air battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN204516873U (en) | 2015-07-29 |
| TW201523975A (en) | 2015-06-16 |
| WO2015076172A1 (en) | 2015-05-28 |
| TWI500205B (en) | 2015-09-11 |
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