WO2010113272A1 - 二次電池および電池システム - Google Patents
二次電池および電池システム Download PDFInfo
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- WO2010113272A1 WO2010113272A1 PCT/JP2009/056682 JP2009056682W WO2010113272A1 WO 2010113272 A1 WO2010113272 A1 WO 2010113272A1 JP 2009056682 W JP2009056682 W JP 2009056682W WO 2010113272 A1 WO2010113272 A1 WO 2010113272A1
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- Prior art keywords
- sheet
- width
- electrode terminal
- battery
- electrode group
- Prior art date
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- 238000010248 power generation Methods 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 12
- 229910001416 lithium ion Inorganic materials 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 238000005452 bending Methods 0.000 description 7
- 239000008151 electrolyte solution Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000088 plastic resin Substances 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000005670 ethenylalkyl group Chemical group 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 229920006226 ethylene-acrylic acid Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/049—Processes for forming or storing electrodes in the battery container
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0468—Compression means for stacks of electrodes and separators
-
- 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a secondary battery in which a positive electrode and a negative electrode are stacked via a separator, and a power supply / storage system using the battery.
- lithium ion secondary batteries in particular, have high energy density and high capacity, so they are used as power sources for household appliances. It is also attracting attention as a storage battery for surplus power storage such as power supplies and power plants.
- a wound lithium ion secondary battery in which a pair of belt-like positive electrode and negative electrode are laminated via a separator to form a spiral, a plurality of sheet-like positive electrodes and a sheet-like negative electrode Are stacked lithium ion secondary batteries.
- the electrode group composed of the plurality of sheet-like positive electrodes and sheet-like negative electrodes is enclosed in a rectangular battery can having a substantially rectangular cross section.
- a wound type lithium ion secondary battery it may be enclosed in a cylindrical battery can having a substantially circular cross section, or may be enclosed in a square battery can.
- the position of the sheet-like positive electrode and the sheet-like negative electrode in the battery can because the sheet-like positive electrode and the sheet-like negative electrode are laminated via a separator in both the laminated type and the wound type lithium ion secondary battery. May deviate, that is, a stacking misalignment may occur. When this misalignment occurs, there is a risk of failure such as a short circuit in the battery due to contact between the positive electrode and the negative electrode. Further, since the battery can is a conductor, it is necessary to electrically insulate the positive electrode and the negative electrode.
- FIG. 5 shows a cross section cut along a plane parallel to a plane on which a positive electrode terminal and a negative electrode terminal (not shown) are formed, of the plane of the rectangular battery can 1.
- An electrode group in which the sheet-like positive electrode 2 and negative electrode 3 are laminated via a separator (not shown) is inserted into the rectangular battery can 1.
- insulating films 4 and 5 made of polypropylene are provided at the four corners of the electrode group, and the length of the surface on which the positive electrode terminal and the negative electrode terminal are formed. They are arranged in the side direction and the short side direction as shown in the figure.
- the electrode surface width a is the same as the inner side (inner) b in the long side direction X, so the corner of the rectangular battery can is rounded, so the sheet electrode near the corner 1a is pressed and deformed. As a result, the separator breaks and the like, and as a result, there is a high risk of causing a failure such as a short circuit.
- the electrode surface width is slightly smaller than the inner method b in the long side direction X and is designed to have a size that is not affected by the roundness of the battery can corner 1a.
- the insulating film 5 is made of a thickness that can withstand at least the insulation, in other words, an extremely thin insulator without a beam.
- the insulating film 5 follows the shape of the prismatic battery can 1 due to the weight of the electrode group.
- the sheet-like positive electrode 2 and the sheet-like negative electrode 3 are displaced in the long side direction as shown in FIG. That is, the positive electrode 2 and the negative electrode 3 are displaced in the direction along their surfaces, that is, in the direction orthogonal to the stacking direction.
- the sheet-like positive electrode 2 and the sheet-like negative electrode 3 in the vicinity of the end of the electrode group are aligned along the square battery can 1 as shown in FIG.
- the present invention can prevent electrode deformation at the corners of a rectangular battery can as much as possible even when continuous vibration is applied, and maximize performance as designed. It is an object of the present invention to provide a secondary battery and a power feeding or power storage system using the battery.
- the secondary battery of the present invention employs the following configuration. That is, a rectangular battery can provided with a positive electrode terminal and a negative electrode terminal, and a sheet-like positive electrode disposed in the rectangular battery can and electrically connected to the positive electrode terminal and electrically connected to the negative electrode terminal
- the first portion having substantially the same width, the center of the first portion in the long side direction and the center substantially on the same vertical line of the surface, and a width larger than the width of the electrode group in the long side direction
- First and second insulating auxiliary sheets provided with a second part of The first and second insulating auxiliary sheets are arranged at positions facing each other across the electrode group from the long side, and are pressed together by the fixing tape in the first portion by pressing the electrode group. It is characterized by.
- an electric vehicle as a power feeding system is:
- a rectangular battery can provided with a positive electrode terminal and a negative electrode terminal, a sheet-like positive electrode disposed in the rectangular battery can and electrically connected to the positive electrode terminal, and a sheet electrically connected to the negative electrode terminal
- a width of the electrode group substantially in the long side direction of the surface on which the positive electrode terminal and the negative electrode terminal of the rectangular battery can are formed.
- the first portion having the same width, the center of the first portion in the long side direction and the center substantially on the same vertical line of the surface, and a width greater than the width of the electrode group in the long side direction.
- first and second insulating auxiliary sheets provided with two portions, the first and second insulating auxiliary sheets are arranged at positions facing each other across the electrode group from the long side, and The electrode group is pressed against each other in the first portion.
- secondary batteries which are connected by titration, tape, A motor for driving the wheels, The motor is driven by receiving power from the secondary battery.
- the electric vehicle may be any vehicle that can be driven by electricity, and may be a hybrid vehicle.
- the power storage system includes: A rectangular battery can provided with a positive electrode terminal and a negative electrode terminal, a sheet-like positive electrode disposed in the rectangular battery can and electrically connected to the positive electrode terminal, and a sheet electrically connected to the negative electrode terminal And a width of the electrode group substantially in the long side direction of the surface on which the positive electrode terminal and the negative electrode terminal of the rectangular battery can are formed.
- the first portion having the same width, the center of the first portion in the long side direction and the center substantially on the same vertical line of the surface, and a width greater than the width of the electrode group in the long side direction.
- first and second insulating auxiliary sheets provided with two portions, the first and second insulating auxiliary sheets are arranged at positions facing each other across the electrode group from the long side, and The electrode group is pressed against each other in the first portion.
- secondary batteries which are connected by titration, tape, Power generation equipment, The secondary battery stores power by receiving power from the power generation facility.
- the power generation equipment any power generation equipment such as a solar battery, a fuel cell, a windmill, a thermal power generation equipment, a hydroelectric power generation equipment, and a nuclear power generation equipment may be used. Good. Even if it is not a power plant, the power generation equipment installed in a general household may be sufficient.
- the first portion having substantially the same width as the width of the electrode group in the long side direction of the surface on which the positive electrode terminal and the negative electrode terminal of the rectangular battery can are formed
- the electrode group is pressed with two insulating auxiliary sheets each having a second portion having a width larger than that of the electrode group in the long side direction, and the first portions of the two insulating auxiliary sheets are connected to each other with a fixing tape.
- the electrode group can be firmly fixed between the two insulating auxiliary sheets. That is, by connecting the first portions of the two insulating auxiliary sheets sandwiching the electrode group, the first portion is almost the same as the electrode group width, so that the electrode group can be firmly fixed without loosening.
- the insulating auxiliary sheet needs to be at least a material with a beam and a thickness.
- the insulating auxiliary sheet is preferably a plastic resin from the viewpoint of easy molding.
- the insulating auxiliary sheet must be one that does not deteriorate with the electrolytic solution.
- a through hole may be provided in the insulating auxiliary sheet to provide the permeation function. If the material and thickness of the insulating auxiliary sheet are adjusted to obtain a plate that is difficult to bend or deform (insulating auxiliary plate), deformation of the electrode can be prevented more firmly.
- the fixing tape is preferably an insulating tape and is preferably made of a material that does not easily deteriorate with an electrolyte. It is also desirable that the adhesive for the fixing tape be a material that does not easily deteriorate with the electrolyte. Natural rubber, synthetic rubber, acrylic, vinyl alkyl ether, silicone, polyester, polyamide, urethane Adhesives such as ethylene-acrylic acid ester system, styrene-butadiene block copolymer system, and styrene-isoprene block copolymer system can be used. However, it is also possible to use a method in which a fixing tape is heat-sealed and fixed to the insulating auxiliary sheet by heating from the outside even without an adhesive surface.
- the insulating auxiliary sheet further having a width larger than the width of the electrode group in the direction perpendicular to the surface of the rectangular battery can on which the positive electrode terminal and the negative electrode terminal are formed, and the electrode group are pressed and fixed with a fixing tape.
- a stacked type secondary battery bending of a plurality of sheet-like positive electrode tabs electrically connected to the positive electrode terminal and a plurality of sheet-like negative electrode tabs electrically connected to the negative electrode terminal is alleviated. Thus, the occurrence of a failure can be prevented.
- the insulating auxiliary sheet that protrudes to the electrode tab side of the electrode group, even if the secondary battery is accidentally placed upside down, Since the insulating auxiliary sheet is replaced with a rectangular battery can and the electrode group is floated in a hollow state in the battery can, the bending of the electrode tab can be alleviated as compared with the case without this insulating auxiliary sheet.
- Two insulative auxiliary sheets are centered on the third portion having the same width as the electrode width in the direction perpendicular to the surface, on the center of the third portion in the vertical direction and on the substantially same line in the long side direction.
- a fourth portion having a width larger than the electrode group width in the vertical direction, and the third portion is connected to each other by a fixing tape, so that the electrode group can be It can be fixed more firmly. That is, since the vertical width of the third portion is substantially the same as the width of the vertical electrode group, the electrode group can be fixed between the two insulating auxiliary sheets without looseness. Thereby, the bending of the said electrode tab can be relieve
- the electrode group is located in a hollow shape between the two insulating auxiliary sheets due to the connection between the first portions of the two insulating auxiliary sheets and the connection between the third portions.
- the insulating auxiliary sheet is a beam or a plate that is difficult to deform, when the electrode group is inserted into the rectangular battery can, the insulating auxiliary sheet integrated with the electrode group with an insulating tape is provided. Acts as an insertion guide. Therefore, the electrode group can be easily inserted into the rectangular battery can.
- the assembled battery may be configured by connecting a plurality of the secondary batteries in series or in parallel.
- the sheet electrode at the end of the electrode group is prevented from being deformed along the roundness of the corner of the prismatic battery can. Therefore, as a result, it is possible to obtain a secondary battery and a power supply / storage system using the battery that exhibit few failures and exhibit performance as designed.
- the secondary battery which concerns on the 1st Embodiment of this invention is shown, (a) is sectional drawing of a square-shaped battery can, (b) is a positional relationship of a sheet-like positive electrode, a sheet-like negative electrode, and an insulating auxiliary sheet.
- FIG. 4C shows a detailed view of the shape of the insulating auxiliary sheet.
- It is square battery can sectional drawing of the secondary battery which concerns on the 2nd Embodiment of this invention.
- the secondary battery which concerns on the 3rd Embodiment of this invention is shown, (a) is a positional relationship figure of a sheet-like positive electrode, a sheet-like negative electrode, and an insulation auxiliary sheet, (b) is the shape of an insulation auxiliary sheet.
- FIG. 1 is a cross-sectional view of a rectangular battery can of a laminated secondary battery according to a prerequisite technology of the present invention.
- FIG. 3 is a cross-sectional view of a square battery can of a laminated secondary battery showing the problems of the prerequisite technology of the present invention. It is an expanded sectional view of the square battery can corner of the laminated secondary battery showing the problems of the prerequisite technology of the present invention.
- FIG. 1A shows a cross-sectional configuration of a stacked secondary battery.
- the square battery can 1 formed of aluminum or the like is provided with a positive electrode terminal and a negative electrode terminal on one surface of the square battery can 1.
- FIG. 1A shows a cross section cut along one surface where the positive electrode terminal and the negative electrode terminal are provided.
- the positional relationship of the insulating auxiliary sheet 8 is shown.
- FIG. 1B is a cross-sectional view of the rectangular battery can 1 cut along a plane that intersects one surface on which a positive electrode terminal and a negative electrode terminal (not shown) are formed.
- FIG. FIG. 1C is a component diagram showing details of the shape of the insulating auxiliary sheet 8 when viewed in the stacking direction.
- a substantially rectangular sheet-like positive electrode 2 electrically connected to a positive electrode terminal (not shown) via a positive electrode tab 11 and a negative electrode terminal (not shown) via a negative electrode tab 12.
- a plurality of substantially rectangular sheet-like negative electrodes 3 electrically connected to each other are laminated via a separator to constitute an electrode group.
- the insulating auxiliary sheet 8 has a width e portion and a width a in a direction perpendicular to the direction in which the electrode tabs 11 and 12 of the sheet-like positive electrode and the sheet-like negative electrode are laminated. Molded to have a portion.
- the portion of the width a of the insulating auxiliary sheet 8 is formed so as to be recessed in the insulating auxiliary sheet 8 from both sides in the direction perpendicular to the electrode tab direction.
- the center in the direction perpendicular to the electrode tab direction of the portion with the width a is designed to be on the same line as the center in the vertical direction of the portion with the width e.
- the insulating auxiliary sheet 8 has a width in the electrode tab direction that is the same as the electrode surface width f in the electrode tab direction.
- the dimension a is the maximum electrode surface width in the long side direction of a cross section cut along a plane parallel to the plane on which the electrode terminals of the rectangular battery can 1 are formed, that is, the width of the electrode group.
- the insulating auxiliary sheet is preferably formed of a plastic resin such as polypropylene from the viewpoint of easy molding.
- the electrode group is pressed and sandwiched between two insulating auxiliary sheets 8, and a fixing tape 9 is applied to the recessed portion so that the two insulating auxiliary sheets are connected to each other.
- a fixing tape 9 is applied to the recessed portion so that the two insulating auxiliary sheets are connected to each other.
- the width h of the fixing tape 9 needs to be smaller than the width g of the recessed portion.
- two insulating auxiliary sheets are connected with two fixing tapes in a direction perpendicular to the electrode tab direction, that is, in a direction orthogonal to the direction in which the electrode tabs 11 and 12 protrude.
- it may be connected with three or more fixing tapes.
- the insulating auxiliary sheet 8 is provided with a plurality of portions having the width a.
- a fixing tape 10 may be applied in the electrode tab direction, and the two insulating auxiliary sheets 8 may be connected. .
- the width i of the fixing tape 10 may be different from the width h of the fixing tape 9, and the materials of the fixing tapes 9 and 10 may be different.
- the electrode group In the direction of the electrode tab, it is difficult to provide a plurality of fixing tapes 10 due to the presence of the electrode tabs 11 and 12. Therefore, it is desirable to use a wide fixing tape 10 so that the electrode group can be sufficiently fixed with only one tape, for example, h ⁇ i.
- the fixing tapes 9 and 10 may be attached so as to circulate all of the electrode group and the two insulating auxiliary sheets 8, and in this case, the electrode group is more firmly fixed between the two insulating auxiliary sheets. Therefore, stacking deviation can be sufficiently prevented.
- Displacement of the sheet-like electrode due to vibration or the like can be prevented by arranging the insulating auxiliary sheet 8 and connecting with the fixing tape. Then, the insulating auxiliary sheet 8 wider than the electrode group is caught in the rounded corner portion of the rectangular battery can 1 to prevent the sheet-like electrode at the end of the electrode group from entering the rounded portion. . As a result, failure can be prevented as a result.
- the width e is substantially the same size as the inner method (inner) b along the long side direction X of the cross section cut along a plane parallel to the one surface on which the electrode terminals of the rectangular battery can 1 are formed, The effect of preventing the sheet electrode from entering the rounded portion can be further improved.
- the two auxiliary insulating sheets 7 may be formed by sandwiching the electrode group from the short side direction of the surface on which the electrode terminals are formed.
- the insulating auxiliary sheet 7 may be connected with the insulating auxiliary sheet 8 by being wound with the fixing tape when the two insulating auxiliary sheets 8 are connected with the fixing tape.
- the insulating auxiliary sheet 7 may be the same material as the insulating auxiliary sheet 8 or a different material. Unlike the auxiliary insulating sheet 8, it is necessary only for electrical insulation, so that it is desirable to design the electrode as thin as possible in order to store a large amount of electrolyte in the electrode group and the prismatic battery can 1.
- both the insulating auxiliary sheet 8 and the insulating auxiliary sheet 7 have a function of easily penetrating the electrolytic solution.
- an insulating film (not shown) for electrical insulation from the electrode group is disposed on the bottom surface of the square battery can 1.
- the case of the stacked electrode group is shown, but it goes without saying that the same effect can be obtained when the wound electrode group is enclosed in a rectangular battery can.
- a lithium ion secondary battery can be targeted.
- a plurality, for example, three electrode groups 13 are arranged in the rectangular battery can 1. That is, one electrode group is pressed with two insulating auxiliary sheets 8 in the square battery can 1, and the two insulating auxiliary sheets 8 are connected with fixing tapes 9, 10. Three sets fixed in the surface of the insulating auxiliary sheet 8 are arranged side by side in contact with each other. However, the total width in the short side direction Y by the three sets of configurations is the inner width along the short side direction Y of the cross section cut along a plane substantially parallel to the plane on which the electrode terminals of the rectangular battery can 1 are formed. It is desirable to be similar to modulo c. Except for this point, it is the same as described in the first embodiment.
- the insulating auxiliary sheet 8 at the outermost end in the arrangement in which three sets of the above-described structures are arranged in contact with each other catches on the rounded corner of the rectangular battery can, and as a result, the sheet electrode is prevented from bending at the end of the electrode group. be able to.
- three sets of the above-described configurations are arranged in the prismatic battery can 1, but two sets may be arranged, or four or more sets may be arranged.
- FIGS. 3 (a) and 3 (b) A secondary battery according to a third embodiment will be described with reference to FIGS. 3 (a) and 3 (b).
- members that are the same as those used in the above-described embodiment are assigned the same reference numerals, and descriptions thereof are omitted.
- the present embodiment can be implemented with appropriate modifications within a range that does not change the gist of the present invention.
- the insulating auxiliary sheet 8 has a width f portion and a width j portion larger than the width f in the electrode tabs 11 and 12 direction.
- the portion of the width f of the insulating auxiliary sheet 14 is formed so as to be recessed in the insulating auxiliary sheet 14 from both sides in the electrode tab direction.
- the center of the width f portion in the electrode tab direction is designed to be on the same line as the center of the j portion in the electrode tab direction and in the direction perpendicular to the electrode tab direction.
- the width k of the recessed part needs to be smaller than the width i of the fixing tape 10. is there.
- the two insulating auxiliary sheets 14 are also connected by the two fixing tapes 9. Except for this point, it is the same as described in the first embodiment and the second embodiment.
- the electrode group can be fixed in a hollow shape in the surface of the insulating auxiliary sheet 14, even if the battery can is reversed upside down, the insulating auxiliary sheet 14 hits the square battery can.
- the bending of the electrode tabs 11 and 12 can be alleviated, and as a result, failure can be prevented.
- the electrode group is fixed so that a space is formed between the insulating auxiliary sheets 14 at both edge ends so that the electrode group is recessed from both edge ends of the insulating auxiliary sheet 14. There is no need to install an insulating film on the bottom surface of the prismatic battery can 1. Thereby, manufacturing cost can also be reduced.
- the secondary battery 22 mounted on the electric vehicle 21 and the spare secondary battery 18 arranged outside the house 15 are the secondary batteries according to the present invention described in the first to third embodiments, for example, the stacked type. It is a lithium ion secondary battery.
- Electric power generated from power generation facilities 20 such as wind power generation, thermal power generation, hydroelectric power generation, nuclear power generation, solar cells, and fuel cells is supplied to a control box 17 used by a user via a supply power system 19.
- the electric power transmitted from the power generation facility 20 is supplied to any one of the secondary battery 22, the standby secondary battery 18, and the switchboard 16 which are driving power sources of the electric vehicle 21.
- the standby secondary battery 18 or the secondary battery 22 of the electric vehicle 21 is charged and stored when electric power is supplied.
- the control box may be programmed to supply power to the switchboard 16 during the daytime and to the secondary battery 22 of the standby secondary battery 18 or the electric vehicle 21 at nighttime.
- the spare secondary battery 18 charged by the power storage system is electrically connected to the switchboard 16 in the house 15 via the control box 17.
- the switchboard 16 is electrically connected to electrical appliances such as air conditioners and televisions connected to plugs in the house 15.
- the user can select whether to drive the electrical appliance in the house 15 by receiving power from the power feeding power system 19 or to drive the electrical appliance using the power of the standby secondary battery 18 stored by the power storage system, This selection / switching is performed by the control box 17.
- the backup secondary battery 18 is electrically connected to the switchboard 16 by switching in the control box 17, power is supplied from the backup secondary battery 18 to the switchboard 16 so that the appliance can be driven.
- the electric vehicle 21 can run by supplying power to the motor that drives the wheels from the secondary battery 22 stored by the power storage system.
- the electric vehicle 21 may be a vehicle capable of driving wheels with an electric motor, and may be a hybrid vehicle.
- the power storage / power supply system using the secondary battery according to the present invention it is possible to prevent as much as possible the stacking deviation and the electrode bending at the corner of the rectangular battery can due to the vibration that is a cause of failure in the secondary battery.
- a power supply system in a car with a lot of vibrations and a power supply / storage system in an earthquake-prone country stable operation with few failures is possible.
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Abstract
Description
リチウムイオン二次電池の形態としては、一対の帯状の正極電極と負極電極とをセパレータを介して積層し渦巻状とした巻回型リチウムイオン二次電池と、複数のシート状正極とシート状負極とを複数のセパレータを介して積層した積層型リチウムイオン二次電池がある。
積層型リチウムイオン二次電池では、上記複数のシート状正極とシート状負極とからなる電極群は、断面が略長方形の角型の電池缶に封入される。巻回型リチウムイオン二次電池では、断面が略円形の円筒型の電池缶に封入される場合もあれば、角型電池缶に封入される場合もある。
そこで、角型電池缶に積層型リチウムイオン二次電池の電極群を封入する場合に、絶縁性であるポリプロピレン製の補助シートを電極群の最端部にあるシート状電極面上に設け、電極群とともにテープ固定する提案がなされている(下記特許文献1参照)。
また、角型電池缶1には電解液を蓄える必要があるため、電極群と角型電池缶1との間には一定の空間、すなわち中空部分6を設けなければならない。このため絶縁膜5は絶縁に最低限耐えられる程度の厚み、言い換えれば極めて薄くはりのない絶縁体が用いられる。
すなわち、正極端子および負極端子が設けられた角型電池缶と、前記角型電池缶内に配置され、前記正極端子に電気的に接続されたシート状正極及び前記負極端子に電気的に接続されたシート状負極がセパレータを介して積層された電極群と、固定用テープと、前記角型電池缶の前記正極端子および前記負極端子が形成された面の長辺方向に前記電極群の幅と実質的に同一幅の第1部分と、前記第1部分の前記長辺方向の中心と前記面の実質的に同一垂直線上に中心があり且つ前記長辺方向に前記電極群の幅より大きな幅の第2部分とを備えた第1および第2の絶縁性補助シートとを有し、
前記第1および第2の絶縁性補助シートは前記長辺側から前記電極群を挟んで対向する位置に配置され且つ前記電極群を圧迫して前記第1部分において互いに前記固定用テープで連結されていることを特徴とする。
正極端子および負極端子が設けられた角型電池缶と、前記角型電池缶内に配置され、前記正極端子に電気的に接続されたシート状正極及び前記負極端子に電気的に接続されたシート状負極がセパレータを介して積層された電極群と、固定用テープと、前記角型電池缶の前記正極端子および前記負極端子が形成された面の長辺方向に前記電極群の幅と実質的に同一幅の第1部分と、前記第1部分の前記長辺方向の中心と前記面の実質的に同一垂直線上に中心があり且つ前記長辺方向に前記電極群の幅より大きな幅の第2部分とを備えた第1および第2の絶縁性補助シートとを備え、前記第1および第2の絶縁性補助シートは前記長辺側から前記電極群を挟んで対向する位置に配置され且つ前記電極群を圧迫して前記第1部分において互いに前記固定用テープで連結されている二次電池と、
車輪を駆動するモーターとを有し、
前記モーターは前記二次電池から給電を受けて駆動することを特徴とする。
電気自動車としては、電気で駆動可能な自動車であればよく、ハイブリッド自動車でもよい。
正極端子および負極端子が設けられた角型電池缶と、前記角型電池缶内に配置され、前記正極端子に電気的に接続されたシート状正極及び前記負極端子に電気的に接続されたシート状負極がセパレータを介して積層された電極群と、固定用テープと、前記角型電池缶の前記正極端子および前記負極端子が形成された面の長辺方向に前記電極群の幅と実質的に同一幅の第1部分と、前記第1部分の前記長辺方向の中心と前記面の実質的に同一垂直線上に中心があり且つ前記長辺方向に前記電極群の幅より大きな幅の第2部分とを備えた第1および第2の絶縁性補助シートとを備え、前記第1および第2の絶縁性補助シートは前記長辺側から前記電極群を挟んで対向する位置に配置され且つ前記電極群を圧迫して前記第1部分において互いに前記固定用テープで連結されている二次電池と、
発電設備とを有し、
前記二次電池は前記発電設備から給電を受けて蓄電することを特徴とする。
発電設備としては、太陽電池、燃料電池、風車、火力発電設備、水力発電設備、原子力発電設備など、発電を行う設備であればいずれのものでもよく、自動車、自転車などに備えられる単なる発電機でもよい。発電所でなくとも、一般家庭に設置される発電設備でもよい。
そして、振動等で電極群が角型電池缶内で振られた場合においても、上記長辺方向に電極群よりせり出した幅広形状の第2部分が角型電池缶の角の丸み部分に当たってつっかえる機能を果たすため、結果として電極群端部のシート状電極が角型電池缶の角の丸みに沿って変形することを防止することができる。この効果は、積層型と巻回型のいずれの二次電池でも、例えば積層型リチウムイオン二次電池や巻回型リチウムイオン二次電池のいずれにおいても得られるものである。
上記つっかえる機能が必要であるため、絶縁性補助シートは少なくともはりのある材料、厚みである必要がある。絶縁性補助シートは成型容易の観点からプラスチック樹脂が望ましい。絶縁性補助シートは、電解液で劣化しないものである必要がある。また、電極群へ十分に電解液を浸透させるために、絶縁性補助シートそれ自体に電解液を浸透させる機能があるものが望ましい。絶縁性補助シートに貫通穴を設けて当該浸透機能をもたせてもよい。
絶縁性補助シートの材料、厚みを調整し、たわみや変形困難なプレート(絶縁性補助プレート)とすれば、より強固に上記電極の変形を防止できる。
なお、2つの絶縁性補助シートの第1部分同士の連結および第3部分同士の連結により、2つの絶縁性補助シート間で電極群は中空状に位置することになる。
2 シート状正極(シート状電極)
3 シート状負極(シート状電極)
4 絶縁膜
5 絶縁膜
6 中空部分
7 絶縁性補助シート
8 絶縁性補助シート
9 固定用テープ
10 固定用テープ
11 正極タブ
12 負極タブ
13 電極群
14 絶縁性補助シート
15 家屋
16 配電盤
17 制御ボックス
18 予備二次電池
19 給電電力系統
20 発電設備
21 電気自動車
22 二次電地
以下に、本発明の第1の実施形態に係る二次電池について、図面を参照して説明する。本発明は以下の最良の形態に限定されるものでなく、本発明の要旨を変更しない範囲内で適宜変更して実施できる。
また、図1(b)は、角型電池缶1の面のうち、図示しない正極端子および負極端子が形成された一面に交差する面で切断した断面であり、シート状正極2及びシート状負極3の積層方向視した断面図である。また、図1(c)は絶縁性補助シート8を積層方向視して、その形状の詳細を示す部品図である。
絶縁性補助シート8は、図1(c) に示すように、積層されるシート状正極およびシート状負極のそれぞれの電極タブ11、12のある方向と垂直方向に幅eの部分と幅aの部分を有するように成型されている。すなわち、絶縁性補助シート8の上記幅aの部分は、電極タブ方向と垂直方向の両側から絶縁性補助シート8に凹みをつけるように形成されている。具体的には、上記幅aの部分の電極タブ方向と垂直方向における中心は、上記幅eの部分の上記垂直方向の中心と電極タブ方向の同一線上に存在するように設計される。
さらに、電極タブ方向への積層ズレを防止するために、図1(b)に示すように、電極タブ方向へ固定用テープ10を貼付し、2つの絶縁性補助シート8を連結してもよい。この場合、固定用テープ10の幅iは固定用テープ9の幅hと異なってもよく、さらに、両固定用テープ9、10の材質が異なっていてもよい。
電極タブ方向へは、電極タブ11、12がある都合上、複数の固定用テープ10を設けることは困難である。よって、固定用テープ10は1本のみで電極群を十分に固定することができるよう幅広のものを用いるのが望ましく、例えばh<iとするのが望ましい。
なお、電極群および2つの絶縁性補助シート8の全てを周回するように固定用テープ9、10を貼付してもよく、この場合はより強固に電極群を2つの絶縁性補助シート間に固定できるので、積層ズレを十分に防止できる。
さらに、上記構成によれば、振動により絶縁性補助シート8の上記幅e部分が上記断面短辺方向Y(本実施形態では積層方向と一致)の角型電池缶に接した場合においても、電極群はこの絶縁性補助シート8の面の内側で固定されているため角型電池缶への接触が防止される。このため、図5における絶縁膜5を設置する必要がなくなり、製造コストを低減させることもできる。
絶縁性補助シート7は、絶縁性補助シート8と同じ材質でもよく、異なる材質でもよい。絶縁性補助シート8と異なり電気的絶縁をするためだけに必要であるので、電解液を電極群と角型電池缶1内に多く蓄えるために、できるだけ薄く設計するのが望ましい。
絶縁性補助シート8も絶縁性補助シート7も、電解液を浸透しやすい機能を有していることが望ましい。
なお、本実施形態の場合には、角型電池缶1の底面に電極群との電気的絶縁を図るための図示しない絶縁膜が配置される。
第2の実施形態に係る二次電池について、図2を参照して説明する。この実施形態において、前述した実施形態で用いた部材と共通の部材には同一の符号を付して、その説明を省略する。また、本実施形態は、本発明の要旨を変更しない範囲内で適宜変更して実施できる。
その点以外は、上記第1の実施形態で述べたと同様である。
3組の上記構成を接して並べた配置における最端部の絶縁性補助シート8が角型電池缶の角の丸み部分にひっかかり、結果として電極群の端部におけるシート状電極の曲がりを防止することができる。
本実施形態では、角型電池缶1内に3組の上記構成を配置したが、2組でもよく、また、4組以上配置してもよい。
第3の実施形態に係る二次電池について、図3(a)、図3(b)を参照して説明する。この実施形態において、前述した実施形態で用いた部材と共通の部材には同一の符号を付して、その説明を省略する。また、本実施形態は、本発明の要旨を変更しない範囲内で適宜変更して実施できる。
そして、上記凹み部分に固定用テープ10が貼付されて2つの絶縁性補助シート14が電極群を圧迫して連結されるため、凹み部分の幅kは固定用テープ10の幅iより小さい必要がある。また、上記第1の実施形態と同様に、2本の固定用テープ9によっても2つの絶縁性補助シート14は連結される。
その点以外は、上記第1の実施形態及び第2の実施形態で述べたと同様である。
さらに、上記中空状に、すなわち電極群が絶縁性補助シート14の両縁端よりも凹むようにして、両縁端において絶縁性補助シート14の間に空間を形成されるように固定されているので、角型電池缶1の底面に絶縁膜を設置する必要がなくなる。これにより、製造コスト低減を図ることもできる。
第4の実施形態に係る二次電池を利用した蓄電・給電システムについて、図4を参照して説明する。この実施形態において、前述した実施形態で用いた部材と共通の部材には同一の符号を付して、その説明を省略する。また、本発明は以下の実施形態に限定されるものでなく、本発明の要旨を変更しない範囲内で適宜変更して実施できる。
昼間は配電盤16、夜間は予備二次電池18または電気自動車21の二次電池22へ電力供給するように制御ボックスをプログラム制御してもよい。
制御ボックス17における切り替えにより、予備二次電池18が配電盤16に電気的に接続された場合には、予備二次電池18から配電盤16へ給電され、上記電化製品の駆動が可能となる。
Claims (6)
- 正極端子および負極端子が設けられた角型電池缶と、
前記角型電池缶内に配置され、前記正極端子に電気的に接続されたシート状正極及び前記負極端子に電気的に接続されたシート状負極がセパレータを介して積層された電極群と、
固定用テープと、
前記角型電池缶の前記正極端子および前記負極端子が形成された面の長辺方向に前記電極群の幅と実質的に同一幅の第1部分と、前記第1部分の前記長辺方向の中心と前記面の実質的に同一垂直線上に中心があり且つ前記長辺方向に前記電極群の幅より大きな幅の第2部分とを備えた第1および第2の絶縁性補助シートとを有し、
前記第1および第2の絶縁性補助シートは前記長辺側から前記電極群を挟んで対向する位置に配置され且つ前記電極群を圧迫して前記第1部分において互いに前記固定用テープで連結されていることを特徴とする二次電池。 - 前記第1および第2の絶縁性補助シートは、前記正極端子および前記負極端子が形成された前記角型電池缶の面の垂直方向に前記電極群の幅より大きな幅を備えていることを特徴とする請求項1に記載の二次電池。
- 前記第1および第2の絶縁性補助シートは、上記面の垂直方向に前記電極幅と実質的に同一幅の第3部分と、前記第3部分の前記垂直方向の中心と前記長辺方向の実質的に同一線上に中心があり且つ前記垂直方向に前記大きな幅の第4部分とを備え、前記第3部分において互いに前記固定用テープで連結されていることを特徴とする請求項2に記載の二次電池。
- 前記シート状正極および前記シート状負極を複数有し、前記シート状正極と前記シート状負極はそれぞれセパレータを介して積層されていることを特徴とする請求項3に記載の二次電池。
- 正極端子および負極端子が設けられた角型電池缶と、
前記角型電池缶内に配置され、前記正極端子に電気的に接続されたシート状正極及び前記負極端子に電気的に接続されたシート状負極がセパレータを介して積層された電極群と、
固定用テープと、
前記角型電池缶の前記正極端子および前記負極端子が形成された面の長辺方向に前記電極群の幅と実質的に同一幅の第1部分と、前記第1部分の前記長辺方向の中心と前記面の実質的に同一垂直線上に中心があり且つ前記長辺方向に前記電極群の幅より大きな幅の第2部分とを備えた第1および第2の絶縁性補助シートとを備え、
前記第1および第2の絶縁性補助シートは前記長辺側から前記電極群を挟んで対向する位置に配置され且つ前記電極群を圧迫して前記第1部分において互いに前記固定用テープで連結されている二次電池と、
車輪を駆動するモーターとを有し、
前記モーターは前記二次電池から給電を受けて駆動することを特徴とする電気自動車。 - 正極端子および負極端子が設けられた角型電池缶と、
前記角型電池缶内に配置され、前記正極端子に電気的に接続されたシート状正極及び前記負極端子に電気的に接続されたシート状負極がセパレータを介して積層された電極群と、
固定用テープと、
前記角型電池缶の前記正極端子および前記負極端子が形成された面の長辺方向に前記電極群の幅と実質的に同一幅の第1部分と、前記第1部分の前記長辺方向の中心と前記面の実質的に同一垂直線上に中心があり且つ前記長辺方向に前記電極群の幅より大きな幅の第2部分とを備えた第1および第2の絶縁性補助シートとを備え、
前記第1および第2の絶縁性補助シートは前記長辺側から前記電極群を挟んで対向する位置に配置され且つ前記電極群を圧迫して前記第1部分において互いに前記固定用テープで連結されている二次電池と、
発電設備とを有し、
前記二次電池は前記発電設備から給電を受けて蓄電することを特徴とする蓄電システム。
Priority Applications (6)
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JP2010539953A JP5244918B2 (ja) | 2009-03-31 | 2009-03-31 | 二次電池および電池システム |
PCT/JP2009/056682 WO2010113272A1 (ja) | 2009-03-31 | 2009-03-31 | 二次電池および電池システム |
US13/121,845 US20110195299A1 (en) | 2009-03-31 | 2009-03-31 | Secondary battery and battery system |
CN2009801192631A CN102047490B (zh) | 2009-03-31 | 2009-03-31 | 二次电池和电池系统 |
EP09842626.5A EP2416399A4 (en) | 2009-03-31 | 2009-03-31 | SECONDARY BATTERY AND BATTERY SYSTEM |
KR1020107026399A KR101266617B1 (ko) | 2009-03-31 | 2009-03-31 | 2차 전지 및 전지 시스템 |
Applications Claiming Priority (1)
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PCT/JP2009/056682 WO2010113272A1 (ja) | 2009-03-31 | 2009-03-31 | 二次電池および電池システム |
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WO2010113272A1 true WO2010113272A1 (ja) | 2010-10-07 |
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PCT/JP2009/056682 WO2010113272A1 (ja) | 2009-03-31 | 2009-03-31 | 二次電池および電池システム |
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Country | Link |
---|---|
US (1) | US20110195299A1 (ja) |
EP (1) | EP2416399A4 (ja) |
JP (1) | JP5244918B2 (ja) |
KR (1) | KR101266617B1 (ja) |
CN (1) | CN102047490B (ja) |
WO (1) | WO2010113272A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120107673A1 (en) * | 2010-11-02 | 2012-05-03 | Sakashita Kazuya | Secondary battery |
JP2012099252A (ja) * | 2010-10-29 | 2012-05-24 | Mitsubishi Heavy Ind Ltd | 二次電池 |
WO2013154155A1 (ja) * | 2012-04-13 | 2013-10-17 | 株式会社 豊田自動織機 | 蓄電装置及び二次電池 |
JP2016021340A (ja) * | 2014-07-15 | 2016-02-04 | 株式会社豊田自動織機 | 蓄電装置 |
JP2016535397A (ja) * | 2013-10-31 | 2016-11-10 | エルジー・ケム・リミテッド | 電池セル積層ジグ |
WO2017222039A1 (ja) * | 2016-06-24 | 2017-12-28 | 株式会社Gsユアサ | 蓄電素子 |
CN117245543A (zh) * | 2023-11-20 | 2023-12-19 | 福建祥鑫新能源汽车配件制造有限公司 | 一种铝合金电池壳加工用翻转装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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TWI599703B (zh) * | 2014-06-24 | 2017-09-21 | 克緹斯國際股份有限公司 | 具有電池之板材 |
US10797272B2 (en) | 2015-10-16 | 2020-10-06 | Robert Bosch Battery Systems Llc | Electrode stack restraint |
US10665849B2 (en) * | 2017-03-20 | 2020-05-26 | The Boeing Company | Battery cell design for preventing internal short circuits from occurring and propagating |
CN107799694A (zh) * | 2017-11-28 | 2018-03-13 | 力信(江苏)能源科技有限责任公司 | 一种提高电芯抗挤压性能的电池结构 |
KR102316340B1 (ko) * | 2019-01-22 | 2021-10-22 | 주식회사 엘지에너지솔루션 | 전극조립체, 그를 포함하는 이차전지, 이차전지 제조방법 및 전지팩 |
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- 2009-03-31 EP EP09842626.5A patent/EP2416399A4/en not_active Withdrawn
- 2009-03-31 US US13/121,845 patent/US20110195299A1/en not_active Abandoned
- 2009-03-31 KR KR1020107026399A patent/KR101266617B1/ko active IP Right Grant
- 2009-03-31 CN CN2009801192631A patent/CN102047490B/zh active Active
- 2009-03-31 JP JP2010539953A patent/JP5244918B2/ja active Active
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012099252A (ja) * | 2010-10-29 | 2012-05-24 | Mitsubishi Heavy Ind Ltd | 二次電池 |
US20120107673A1 (en) * | 2010-11-02 | 2012-05-03 | Sakashita Kazuya | Secondary battery |
WO2013154155A1 (ja) * | 2012-04-13 | 2013-10-17 | 株式会社 豊田自動織機 | 蓄電装置及び二次電池 |
JP2013235818A (ja) * | 2012-04-13 | 2013-11-21 | Toyota Industries Corp | 蓄電装置及び二次電池 |
US9905826B2 (en) | 2012-04-13 | 2018-02-27 | Kabushiki Kaisha Toyota Jidoshokki | Electric storage device and rechargeable battery |
JP2016535397A (ja) * | 2013-10-31 | 2016-11-10 | エルジー・ケム・リミテッド | 電池セル積層ジグ |
JP2016021340A (ja) * | 2014-07-15 | 2016-02-04 | 株式会社豊田自動織機 | 蓄電装置 |
WO2017222039A1 (ja) * | 2016-06-24 | 2017-12-28 | 株式会社Gsユアサ | 蓄電素子 |
JPWO2017222039A1 (ja) * | 2016-06-24 | 2019-05-16 | 株式会社Gsユアサ | 蓄電素子 |
CN117245543A (zh) * | 2023-11-20 | 2023-12-19 | 福建祥鑫新能源汽车配件制造有限公司 | 一种铝合金电池壳加工用翻转装置 |
CN117245543B (zh) * | 2023-11-20 | 2024-02-23 | 福建祥鑫新能源汽车配件制造有限公司 | 一种铝合金电池壳加工用翻转装置 |
Also Published As
Publication number | Publication date |
---|---|
EP2416399A4 (en) | 2014-01-01 |
JP5244918B2 (ja) | 2013-07-24 |
EP2416399A1 (en) | 2012-02-08 |
CN102047490A (zh) | 2011-05-04 |
CN102047490B (zh) | 2013-07-10 |
JPWO2010113272A1 (ja) | 2012-10-04 |
KR20110008280A (ko) | 2011-01-26 |
US20110195299A1 (en) | 2011-08-11 |
KR101266617B1 (ko) | 2013-05-22 |
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