CN105789499A - Alkali battery sealing ring - Google Patents
Alkali battery sealing ring Download PDFInfo
- Publication number
- CN105789499A CN105789499A CN201610264545.2A CN201610264545A CN105789499A CN 105789499 A CN105789499 A CN 105789499A CN 201610264545 A CN201610264545 A CN 201610264545A CN 105789499 A CN105789499 A CN 105789499A
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- China
- Prior art keywords
- battery
- sealing ring
- explosion
- proof valve
- ring
- Prior art date
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- 238000007789 sealing Methods 0.000 title claims abstract description 125
- 239000003513 alkali Substances 0.000 title abstract description 4
- 239000000463 material Substances 0.000 claims description 13
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 10
- 239000003792 electrolyte Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 229920000305 Nylon 6,10 Polymers 0.000 claims description 4
- 229920000572 Nylon 6/12 Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 6
- 230000035882 stress Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 230000006378 damage Effects 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000002788 crimping Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910002640 NiOOH Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 229960002523 mercuric chloride Drugs 0.000 description 1
- LWJROJCJINYWOX-UHFFFAOYSA-L mercury dichloride Chemical compound Cl[Hg]Cl LWJROJCJINYWOX-UHFFFAOYSA-L 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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
- H01M50/183—Sealing members
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention provides an alkali battery sealing ring which is positioned among a battery bottom cover, a central column and a battery shell and is used for sealing an alkali battery, wherein the central column is positioned in the center of the sealing ring; anti-explosion valves are arranged on the sealing ring; the anti-explosion valves are thin trenches in the sealing ring in the direction of the central column; openings of the thin trenches are formed in the side, close to the battery bottom cover, of the sealing ring; the anti-explosion valves are uniformly or non-uniformly formed in the sealing ring; the thin trenches are linear, V-shaped, U-shaped or Y-shaped.
Description
Technical field
The present invention relates to a kind of alkaline battery, be specifically related to a kind of alkaline battery sealing ring.
Background technology
Along with the development of our country, the living standard of the people improves constantly, and the environmental protection consciousness of people constantly strengthens, and people more and more use the alkaline battery of green non-pollution.Alkaline battery has following several big advantage relative to traditional carbon battery: (1) high power discharge performance is good, and the alkaline battery use time is more than 5 times of carbon battery；(2) low temperature performance is good, can also work at minus 20 degrees alkaline battery, and carbon battery just almost can not put electricity about zero degree；(3) in alkaline battery, the utilization rate of active substance, more than carbon battery, is conducive to the Appropriate application of resource；(4) alkaline battery does not contain any heavy metal, is green non-pollution battery, and carbon battery then has and adds a small amount of mercuric chloride as corrosion inhibiter, thus environment has certain pollution；(5) self-discharge of battery is little, stores 1 year capacitance loss less than 5% when 20 degree, and within 3 years, capacitance loss is less than 10%.
Although alkaline battery sales volume adds, but expose some problems, as: battery leakage problem, the explosion issues etc. of battery.It addition, consumer is also more and more higher to the requirement of alkaline battery, for instance: require that cell discharge performance improves constantly, it is desirable to battery price reduction etc..
For the leakage problem of alkaline battery, each battery producer situation is all different, and good producer does not have leakage within the battery shelf-life.Although consumer will not be caused big injury by leakage, but can affect the purchase again of consumer.Under some special occasions battery leakage fill permitted, as battery install incorrectly, battery charging, new used batteries mixing use, but under any condition, battery should not be blasted.Having explosion-proof valve on the sealing ring of alkaline battery under normal circumstances, each producer in shape and position for explosion-proof valve is also not necessarily identical, but explosion-proof valve is the place that sealing ring is the weakest.Why alkaline battery have explosion-proof valve to be to prevent the incorrect use battery of some consumer, cell internal pressure can be made to increase, at this moment first the explosion-proof valve on battery seal ring will be broken through, and inside battery gas is released, thus avoiding battery explosion.
Owing to the probability of battery leakage generation is much larger than blast, thus the leakage problem of the more concern battery of some producer, battery seal ring is designed without adding explosion-proof valve, or explosion-proof valve design is unreasonable, when explosion-proof valve needs to open, without normally opening.Such battery leakproof can be good, but explosion-proof performance does not ensure.There is the explosion-proof paying close attention to battery in some producer, but the leakproof being likely to battery can be very poor again.
The problems referred to above and consumer demand hence for alkaline battery, it is necessary to the alkaline battery of a kind of preventing liquid leakage performance that can improve and explosion-proof performance.
Summary of the invention
The invention provides a kind of alkaline battery sealing ring, described sealing ring, between battery bottom, newel and battery container, is used for closing alkaline battery, and described newel is positioned at the center of sealing ring, and described sealing ring is provided with explosion-proof valve；Described explosion-proof valve is the weak groove on sealing ring along newel direction, and described weak groove opening is in the sealing ring side near battery bottom；Described explosion-proof valve is uniformly or non-uniformly arranged on sealing ring；The shape of described weak groove is " one " font or " V " font or "U" shaped or " Y " font.
Preferably, described weak groove is horizontal in blind hole that cross-sectional shapes is " V " shape or " u "-shaped.
Preferably, the number of described explosion-proof valve is 1-5.
It is highly preferred that the number of described explosion-proof valve is 2-5.
Preferably, described sealing ring is 0.3mm-1.0mm at the thickness range without weak grooved position, is 0.05-0.25mm at the thickness having weak grooved position.
It is highly preferred that described sealing ring is 0.4mm-0.8mm at the thickness range without weak grooved position, it is 0.05-0.15mm at the thickness having weak grooved position.
Preferably, the injected plastics material of described sealing ring is selected from: nylon66 fiber, NYLON610, nylon 612 or PP.
Preferably, the injection temperature of described sealing ring is 200-320 DEG C
Preferably, described sealing ring, between battery bottom and battery container, is used for closing alkaline battery, and described negative pole seal body also includes the peristome of battery container, battery cathode end, negative current collector.
Preferably, described sealing ring, between battery bottom and battery container, is used for closing alkaline battery, and described alkaline battery also includes: battery bottom, battery steel shell, battery sealing coat, battery cathode collector, anode, battery cathode, electrolyte.
Accompanying drawing explanation
With reference to the accompanying drawing enclosed, the more purpose of the present invention, function and advantage will be illustrated by the described below of embodiment of the present invention, wherein:
Fig. 1 is the structural representation of alkaline battery of the prior art；
Fig. 2 (a) is the profile of battery cathode seal body in prior art；
Fig. 2 (b) is the sealing ring in Fig. 2 (a) and the stress schematic diagram suffered by explosion-proof valve；
Fig. 2 (c) is the top view of battery seal ring in prior art；
Fig. 2 (d) is the upward view of battery seal ring in prior art；
The profile of the alkaline battery cathode seal body that Fig. 3 (a) is the present invention；
The top view of one specific embodiment of the alkaline battery sealing ring that Fig. 3 (b) is the present invention；
The upward view of one specific embodiment of the alkaline battery sealing ring that Fig. 3 (c) is the present invention.
Fig. 4 is the top view of the sealing ring of first embodiment of the invention.
Fig. 5 is the top view of the sealing ring of second embodiment of the invention.
Fig. 6 is the top view of the sealing ring of third embodiment of the invention.
Fig. 7 is the top view of the sealing ring of fourth embodiment of the invention.
Detailed description of the invention
To be illustrated by reference one exemplary embodiment, the purpose of the present invention and function and the method for realizing these purposes and function.But, the present invention is not limited to one exemplary embodiment disclosed below；By multi-form, it can be realized.The essence of description is only the detail helping the various equivalent modifications Integrated Understanding present invention.
Should be appreciated that aforementioned description substantially is exemplary illustration and explanation with follow-up detailed description, the restriction to the claimed content of the present invention should not be used as.
Hereinafter, embodiments of the invention will be described with reference to the drawings.In the accompanying drawings, identical accompanying drawing labelling represents same or similar parts or same or similar step.
The housing of alkaline battery is before sealing, peristome external diameter is all big than other position of battery, battery seal ring is more slightly larger than the internal diameter of battery peristome again, such sealing ring inserts the peristome of battery container and would not eject, afterwards battery is carried out crimping, battery peristome edge to the bending of battery container center, the peristome edge housing being bent over is fixed on battery seal ring inside battery.Battery next process after crimping is to stretch, owing to the external diameter of battery peristome is more than cell outside diameter, battery peristome being narrowed down to equally big with cell outside diameter by stretching, the external diameter of sealing ring is more than battery internal diameter, so sealing ring is compressed thus realizing the sealing to battery after stretching.The alkaline battery production line of current Ge great battery producer produces the speed of alkaline battery all quickly, usually 300/minute-700/minutes, the process that so each battery realizes stretching is very short, the time having only to 1 second to 2 seconds just can complete, certain impulsive force that sealing ring is subject at drawing process.The explosion-proof valve of the sealing ring of a lot of producers is positioned at the outer ring of battery center post, the sealing ring stress deformation when battery stretches, it is sealed in the explosion-proof valve of newel outer ring also to have certain impact accordingly power, this impulsive force can make the explosion-proof valve of sealing ring impaired, the degree of damage is big, battery production is out easy for leakage situation occur, and degree of injury is little, it is possible to just occur leakage after battery storage a period of time.Additionally, owing to after battery seal, sealing ring is subject to certain compression, the sealing of compression can make explosion-proof valve be subject to certain stress, and battery is in storage process, the explosion-proof valve being constantly subjected to stress is easier to rupture because of aging, so that battery generation electrolyte leaks from explosion-proof valve fracture position.
The electrolyte of alkaline battery is strong alkaline aqueous solution, and the sealing ring of alkaline battery is mainly PP (polypropylene polypropylene) and nylon66 fiber, NYLON610, nylon 1010.Owing to alkaline battery raw material is not exclusively pure, battery steel shell electrodeposited coating is fine and close not, in addition, the environment produced also can introduce some impurity, these impurity are mainly ferrum, copper, nickel, molybdenum etc., and hydrogen easily precipitates out at these contaminant surface, so that the air pressure in battery increases.It addition, these impurity also can form a micro cell with the active matter of anode and negative pole, hydrogen also can be generated.The producer that tolerance that the alkaline battery of different battery manufacturer production is internally generated is different, good, material purity controls through strict, and production process is rigid in checking up, the tolerance produced in battery can little a lot, but can not stop.Owing to inevitably generating gas inside alkaline battery, the pressure of inside battery can more than atmospheric pressure, the sealing ring of battery, and the moment bears an outside stress；In addition, sealing ring explosion-proof valve is additionally subjected to cell deformation subjected to stress after battery stretches, damage sealing ring explosion-proof valve meeting accelerated ageing, after sealing ring can not bear cell internal pressure, sealing ring will break, the electrolyte of inside battery gas and battery will discharge in battery, and such battery occurs as soon as leakage.On the other hand, sealing ring material nylon and PP also can react under strongly alkaline conditions lentamente, the weakened making material becomes fragile, add that the gas pressure in battery is relatively larger and sealing ring explosion-proof valve be additionally subjected to battery and draw sealed ring deformation subjected to stress and damage behind Shen, battery just more capacity leakage occurs.
The present invention passes through lot of experiments, and ring structure has been redesigned, it is to avoid sealing ring explosion-proof valve explosion-proof valve after drawing process sustains damage and battery stretches will not be subject to the stress that sealed ring deformation produces, thus improving the preventing liquid leakage performance of alkaline battery.
Alkaline battery structure of the prior art as it is shown in figure 1, specifically include that (1) battery bottom 101, i.e. the negative pole end of battery.For being connected with outside electrical appliance, turn-on battery internal electron；(2) battery seal ring 102, between battery bottom and battery container, for sealed cell, it is prevented that inside battery strong alkaline electrolytes liquid spills, and simultaneously works as insulating effect, it is prevented that anode and negative pole short circuit.(3) battery container 103, namely the container of battery is held concurrently the positive terminal of battery.(4) battery sealing coat 104, for isolating the active matter of anode and negative pole, it is prevented that internal short-circuit of battery.(5) battery cathode collector 105, for collecting the electronics that battery cathode produces, and the negative pole end of the electronic conduction battery collected.(6) anode 106, are mainly positive active material and the conductive material of battery, and active substance is mainly Mn02, NiOOH, AgO or above-mentioned hopcalite.(7) battery cathode 107, mainly negative electrode active material, binding agent, guarantor's liquor and KOH electrolyte.Negative electrode active material is mainly alloy zinc powder, and the material of zinc formation alloy has one or more in the elements such as indium, bismuth, aluminum, calcium.(8) electrolyte.Electrolyte is distributed in the sealing coat of the positive pole of battery, negative pole and battery, plays ionic conduction effect at inside battery, and main matter is concentration is 29% to 40%KOH aqueous solution, contains a small amount of corrosion inhibiter preventing zinc powder from corroding simultaneously.
In prior art, the structure of alkaline battery cathode seal body is such as shown in Fig. 2 (a), Fig. 2 (a) is the profile of battery cathode seal body in prior art, and alkaline battery cathode seal body includes: the peristome 201 of battery container, battery cathode end 202, sealing ring 203, newel 204, negative current collector 205, explosion-proof valve 206.Wherein, newel 204 is positioned at the centre of sealing ring, and explosion-proof valve 206 is positioned at the outer ring being close to newel.Fig. 2 (b) is sealing ring in Fig. 2 (a) and the stress schematic diagram suffered by explosion-proof valve, from Fig. 2 (b) it can be seen that, first battery peristome edge can carry out crimping in the process of cell sealing, and sealing ring 203 is subject to the power of a direction compression.Next process after crimping is to stretch, owing to the external diameter of battery peristome is more than cell outside diameter, battery peristome being narrowed down to equally big with cell outside diameter by stretching, in above process, explosion-proof valve 206 can be subject to the stress in (b direction) downwards or upwards (c direction).Fig. 2 (c) is the top view of battery seal ring in prior art；Fig. 2 (d) is the upward view of battery seal ring in prior art, and wherein d position is the position of explosion-proof valve.By Fig. 2 (a)-Fig. 2 (d) it can be seen that the peristome of the explosion-proof valve of prior art neutral and alkali battery is located remotely from the side of battery cathode end.
The profile of the alkaline battery cathode seal body of one specific embodiment of the present invention is such as shown in Fig. 3 (a), including: battery bottom 301, sealing ring 302, newel 303, negative current collector 304, explosion-proof valve 305, battery container peristome 306.Sealing ring 302, between battery bottom 301, newel 303 and the peristome 306 of battery container, is used for closing alkaline battery, and newel 303 is positioned at the center of sealing ring 302.The injected plastics material of sealing ring is: nylon66 fiber, NYLON610, nylon 612 or PP.Sealing ring 302 is provided with explosion-proof valve 305.The thickness of sealing ring 302 is 0.3mm-1.0mm, it is preferable that 0.4mm-0.8mm.Explosion-proof valve 305 is the weak groove on sealing ring 302 along newel 303 direction, and in the present embodiment, explosion-proof valve is the weak groove (as Suo Shi Fig. 3 (b)) of opening " V " font, is opened on the sealing ring 302 side near battery bottom 301.The quantity of explosion-proof valve 305 is at least one, it is preferable that 2-5, it is possible to be uniformly or non-uniformly arranged on sealing ring 302.The shape of weak groove can also is that " one " font or "U" shaped or " Y " font.Weak groove transverse cross-sectional shape is the blind hole of " V " shape or " u "-shaped, and thickness range is 0.05-0.25mm, it is preferable that 0.05-0.15mm.Fig. 3 (b) is the top view of sealing ring in Fig. 3 (a).Fig. 3 (c) is the upward view of sealing ring in Fig. 3 (a).By Fig. 3 (b), 3 (c) it can be seen that the explosion-proof valve of the alkaline battery sealing ring of the present invention is opened on the side near battery cathode end (battery bottom), this is contrary with the position of the explosion-proof valve of prior art.
The positional structure of the alkaline battery sealing ring of the present invention is described by specific embodiment below.
Embodiment 1
Battery seal ring material selection nylon66 fiber in the present embodiment, injection temperature controls as 200-320 DEG C.Sealing ring explosion-proof valve adopts " | " shape explosion-proof valve sealing ring, and the thickness of explosion-proof valve is 0.1mm.Being assembled into LR6 battery with this sealing ring, battery is compiled as 1#.Fig. 4 is the top view of the sealing ring of first embodiment of the invention.
Embodiment 2
Battery seal ring material selection nylon66 fiber in the present embodiment, injection temperature controls as 200-320 DEG C.Sealing ring explosion-proof valve adopts two " | " shape explosion-proof valve sealing rings, and the thickness of explosion-proof valve is 0.1mm.Being assembled into LR6 battery with this sealing ring, battery is compiled as 2#.Fig. 5 is the top view of the sealing ring of second embodiment of the invention.
Embodiment 3
Battery seal ring material selection nylon66 fiber in the present embodiment, injection temperature controls as 200-320 DEG C.Sealing ring explosion-proof valve adopts three " | " shape explosion-proof valve sealing rings, and the thickness of explosion-proof valve is 0.1mm.Being assembled into LR6 battery with this sealing ring, battery is compiled as 3#.Fig. 6 is the top view of the sealing ring of third embodiment of the invention.
Embodiment 4
Battery seal ring material selection nylon66 fiber in the present embodiment, injection temperature controls as 200-320 DEG C.Sealing ring explosion-proof valve adopts four " | " shape explosion-proof valve sealing rings, and the thickness of explosion-proof valve is 0.1mm.Being assembled into LR6 battery with this sealing ring, battery is compiled as 4#.Fig. 7 is the top view of the sealing ring of fourth embodiment of the invention.
Embodiment 5
Battery seal ring material selection nylon66 fiber in the present embodiment, injection temperature controls as 200-320 DEG C.Sealing ring explosion-proof valve adopts the explosion-proof valve sealing ring of two " V " character form structures, and the thickness of explosion-proof valve is 0.1mm.Being assembled into LR6 battery with this sealing ring, battery is compiled as 6#.The top view of the sealing ring that Fig. 3 (b) is fifth embodiment of the invention.Wherein the opening angle of " V " character form structure ranges for 20-150 degree, it is preferred to 45-90 degree.
Embodiment 6
Battery seal ring material selection nylon66 fiber in the present embodiment, injection temperature controls as 200-320 DEG C.Sealing ring explosion-proof valve adopts old ring structure, and anti-explosion valve structure is "○" shape, and explosion-proof valve is positioned at the periphery being close to sealing ring newel, and the thickness of explosion-proof valve is 0.1mm.Being assembled into LR6 battery with this sealing ring, battery is compiled as 6#.The upward view of the sealing ring that Fig. 2 (d) is sixth embodiment of the invention.
Take 100 each embodiment batteries, battery is placed on 60 DEG C, the baking oven of 90% humidity is examined, record quantity and the time of leakage battery.
It it is 60 DEG C from battery storage condition, test when 90% humidity, the result of appraisal are it can be seen that adopt newly-designed sealing ring (embodiment 1-5) to change structure and the position of original sealing ring explosion-proof valve, explosion-proof valve position is towards the direction at sealing ring center, and it is distributed between sealing ring center and sealing ring edge, explosion-proof valve would not be caused damage by impulsive force when battery seal and stretching, after battery seal completes, sealing ring is compressed, the sealing ring of compression can produce stress, the effect of explosion-proof valve is also preferably minimized by this stress, therefore the sealing ring of new construction can protect the explosion-proof valve of sealing ring well, the ageing time of explosion-proof valve can be extended, the leakproof energy of battery storage phase can be effectively improved.60 DEG C of battery, 90% humidity, examine 40 days, adopt the sealing ring of 1#-5# new construction that leakage battery does not occur, and adopt the battery of old sealing structure circle to have 18 leakage occurs.60 days, the leakage rate of 1#-5# battery was all within 3%, and adopts the battery leakage rate of the sealing ring of old structure to reach 45%, far above the sealing ring of new construction.So the sealing ring of new construction can be effectively improved the leakproof energy of battery storage phase, so that battery preventing liquid leakage performance improves more than 40%.Xinmi City's seal also has equivalent effect for other alkaline battery such as LR20, LR4, LR03 etc..
In conjunction with explanation and the practice of the present invention disclosed here, other embodiments of the present invention are all easy to expect and understand for those skilled in the art.Illustrating and embodiment is regarded only as and is illustrative of, true scope and the purport of the present invention are all defined in the claims.
Claims (10)
1. an alkaline battery sealing ring, described sealing ring, between battery bottom, newel and battery container, is used for closing alkaline battery, and described newel is positioned at the center of sealing ring, and described sealing ring is provided with explosion-proof valve；
Described explosion-proof valve is the weak groove on sealing ring along newel direction,
Described weak groove opening is in the sealing ring side near battery bottom；
Described explosion-proof valve is uniformly or non-uniformly arranged on sealing ring；
The shape of described weak groove is " one " font or " V " font or "U" shaped or " Y " font.
2. battery seal ring as claimed in claim 1, described weak groove is horizontal in blind hole that cross-sectional shapes is " V " shape or " u "-shaped.
3. battery seal ring as claimed in claim 1, the number of described explosion-proof valve is 1-5.
4. battery seal ring as claimed in claim 3, the number of described explosion-proof valve is 2-5.
5. battery seal ring as claimed in claim 1, described sealing ring is 0.3mm-1.0mm at the thickness range without weak grooved position, is 0.05-0.25mm at the thickness having weak grooved position.
6. battery seal ring as claimed in claim 5, described sealing ring is 0.4mm-0.8mm at the thickness range without weak grooved position, is 0.05-0.15mm at the thickness having weak grooved position.
7. battery seal ring as claimed in claim 1, the injected plastics material of described sealing ring is selected from: nylon66 fiber, NYLON610, nylon 612 or PP.
8. battery seal ring as claimed in claim 1, the injection temperature of described sealing ring is 200-320 DEG C
9. the negative pole seal body comprising battery seal ring as claimed in claim 1, described sealing ring is between battery bottom and battery container, for closing alkaline battery, described negative pole seal body also includes the peristome of battery container, battery cathode end, negative current collector.
10. the alkaline battery comprising battery seal ring as claimed in claim 1, described sealing ring is between battery bottom and battery container, for closing alkaline battery, described alkaline battery also includes: battery bottom, battery steel shell, battery sealing coat, battery cathode collector, anode, battery cathode, electrolyte.
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| CN201610264545.2A CN105789499B (en) | 2016-04-26 | 2016-04-26 | A kind of alkaline battery sealing ring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610264545.2A CN105789499B (en) | 2016-04-26 | 2016-04-26 | A kind of alkaline battery sealing ring |
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| CN105789499A true CN105789499A (en) | 2016-07-20 |
| CN105789499B CN105789499B (en) | 2019-08-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018101468A (en) * | 2016-12-19 | 2018-06-28 | Fdk株式会社 | Sealing gasket of cylindrical alkaline cell and cylindrical alkaline cell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108792A (en) * | 1985-01-08 | 1986-11-05 | 美商贝洛特公司 | Electromagnetic extended nip press |
| JPH09120805A (en) * | 1995-10-25 | 1997-05-06 | Fuji Elelctrochem Co Ltd | Alkaline battery |
| CN201408790Y (en) * | 2009-04-14 | 2010-02-17 | 四川长虹电器股份有限公司 | Sealing ring of alkaline-manganese battery |
| CN205666264U (en) * | 2016-04-26 | 2016-10-26 | 福建南平南孚电池有限公司 | Alkaline battery sealing ring |
-
2016
- 2016-04-26 CN CN201610264545.2A patent/CN105789499B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108792A (en) * | 1985-01-08 | 1986-11-05 | 美商贝洛特公司 | Electromagnetic extended nip press |
| JPH09120805A (en) * | 1995-10-25 | 1997-05-06 | Fuji Elelctrochem Co Ltd | Alkaline battery |
| CN201408790Y (en) * | 2009-04-14 | 2010-02-17 | 四川长虹电器股份有限公司 | Sealing ring of alkaline-manganese battery |
| CN205666264U (en) * | 2016-04-26 | 2016-10-26 | 福建南平南孚电池有限公司 | Alkaline battery sealing ring |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018101468A (en) * | 2016-12-19 | 2018-06-28 | Fdk株式会社 | Sealing gasket of cylindrical alkaline cell and cylindrical alkaline cell |
| CN110050358A (en) * | 2016-12-19 | 2019-07-23 | Fdk株式会社 | Cylindrical alkaline battery seal washer and cylindrical alkaline battery |
| EP3557649A4 (en) * | 2016-12-19 | 2020-07-15 | FDK Corporation | Sealing gasket for circular cylindrical shaped alkaline battery and circular cylindrical shaped alkaline battery |
| US11594740B2 (en) | 2016-12-19 | 2023-02-28 | Fdk Corporation | Sealing gasket for cylindrical alkaline battery and cylindrical alkaline battery |
| CN110050358B (en) * | 2016-12-19 | 2023-09-05 | Fdk株式会社 | Sealing gasket for cylindrical alkaline cell and cylindrical alkaline cell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105789499B (en) | 2019-08-13 |
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