WO2012039423A1 - 非水電解液二次電池 - Google Patents
非水電解液二次電池 Download PDFInfo
- Publication number
- WO2012039423A1 WO2012039423A1 PCT/JP2011/071480 JP2011071480W WO2012039423A1 WO 2012039423 A1 WO2012039423 A1 WO 2012039423A1 JP 2011071480 W JP2011071480 W JP 2011071480W WO 2012039423 A1 WO2012039423 A1 WO 2012039423A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terminal
- lid
- gasket
- electrolyte secondary
- elastic body
- Prior art date
Links
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000005486 organic electrolyte Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims description 72
- 239000011347 resin Substances 0.000 claims description 72
- 239000000463 material Substances 0.000 claims description 60
- 229920001971 elastomer Polymers 0.000 claims description 14
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 229920006311 Urethane elastomer Polymers 0.000 claims description 3
- 229920005549 butyl rubber Polymers 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 239000004813 Perfluoroalkoxy alkane Substances 0.000 description 6
- 229920011301 perfluoro alkoxyl alkane Polymers 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000013585 weight reducing agent 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
- H01M10/05—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
- 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
- H01M50/147—Lids or covers
-
- 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
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
- H01M50/157—Inorganic material
- H01M50/159—Metals
-
- 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
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
- H01M50/16—Organic material
-
- 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
- H01M50/172—Arrangements of electric connectors penetrating the casing
- H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
- H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
-
- 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
- H01M50/184—Sealing members characterised by their shape or structure
-
- 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
- H01M50/186—Sealing members characterised by the disposition of the 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
- H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
-
- 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
- H01M50/19—Sealing members characterised by the material
- H01M50/191—Inorganic material
-
- 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
- H01M50/19—Sealing members characterised by the material
- H01M50/193—Organic material
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/564—Terminals characterised by their manufacturing process
- H01M50/567—Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
-
- 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
Definitions
- the present invention relates to a non-aqueous electrolyte secondary battery, and particularly to a seal structure of a non-aqueous electrolyte secondary battery such as a lithium ion battery that is required to have a high degree of sealing.
- non-aqueous electrolyte secondary batteries such as lithium ion batteries have a high energy density, and are expected as main products for these demands.
- a prismatic structure having an electrode body in which a positive electrode plate and a negative electrode plate are laminated via a separator, or a laminate in which a positive electrode plate and a negative electrode plate are laminated via a separator
- a cylindrical structure having an electrode body wound around the body.
- the electrode body of any structure is housed in a battery case or a battery case together with a non-aqueous electrolyte.
- the outer shape of the battery case may be a square structure even when a wound electrode body is used as the electrode body.
- the extraction of current from the electrode body is performed via a positive electrode current collector and a negative electrode current collector connected to the positive electrode plate and the negative electrode plate, respectively. That is, a terminal extraction hole (terminal) in which a positive electrode terminal and a negative electrode terminal connected to a positive electrode current collector and a negative electrode current collector are connected to a positive electrode current collector and a negative electrode current collector are formed on the lid of the battery case. It protrudes outside the battery case from the through-hole.
- this terminal lead hole for example, in a state where an electrode terminal having a screwed terminal portion is inserted into the terminal lead hole of the battery case from the inside of the battery case, the periphery of the portion where the terminal lead hole of the lid is formed A seal member (for example, a gasket) is sandwiched between the inner wall surface and the terminal body of the electrode terminal, and a nut is inserted into the threaded portion of the threaded terminal portion of the electrode terminal protruding outside the battery case via a washer and gasket.
- a seal member for example, a gasket
- the compression amount of the seal member greatly depends on the degree of tightening of the nut. Therefore, even if the nut is tightened so that an appropriate amount of compression of the seal member can be obtained at the time of battery manufacture, if the nut is subsequently loosened, the amount of compression of the seal member will be insufficient and the sealing performance will deteriorate. There are concerns about the occurrence.
- an object of the present invention is to provide a seal structure that can reduce a decrease in seal performance as much as possible even after the start of battery use.
- a nonaqueous electrolyte secondary battery of the present invention is accommodated in a battery case comprising a battery case body having an opening and a lid for sealing the opening of the battery case body, and the battery case.
- the electrode terminal has a terminal main body portion electrically connected to the electrode group, and a screwed terminal portion that is provided integrally with the terminal main body portion and penetrates the lid, and the screw terminal portion that penetrates the lid has a nut Is tightened and fixed to the lid.
- cover of a battery case is provided.
- the compressed elastic body gives a force in a direction away from the lid to the terminal main body of the electrode terminal. This force becomes a force that pulls the terminal portion with the screw toward the inside of the battery case, and suppresses the occurrence of loosening of the nut.
- the elastic body is preferably made of a rubber material.
- the rubber material at least one selected from chloroprene rubber, nitrile rubber, ethylene propylene rubber, butyl rubber, urethane rubber, fluorine rubber, and silicon rubber can be used.
- chloroprene rubber nitrile rubber
- ethylene propylene rubber butyl rubber
- urethane rubber fluorine rubber
- silicon rubber can be used.
- Such a rubber-based material is not particularly dissolved even when it comes into contact with the non-aqueous electrolyte, and therefore does not affect the battery performance.
- the non-aqueous electrolyte secondary battery has a gasket disposed between the terminal body and the lid outside the elastic body.
- This gasket is preferably made of a resin material.
- a specific resin material for the gasket at least one selected from a rubber gasket, a synthetic resin gasket, a semi-metallic gasket, and an expanded graphite gasket can be used. Even if such a resin material is brought into contact with the non-aqueous electrolyte, it is not particularly dissolved, so that the battery performance is not affected.
- It may further include a filled resin portion formed by curing the resin material filled in the recess surrounded by the lid, the terminal main body portion, and the elastic body. Providing such a resin-filled portion can prevent the elastic body from extending into the recess and reduce the effect of the elastic body, and the resin-filled portion also exhibits a sealing effect, so that the sealing performance can be enhanced.
- Stepped grooves are formed in each of the lid and the terminal body of the electrode terminal, and an elastic body and a gasket can be arranged in the stepped grooves. If it does in this way, an elastic body and a gasket can be positioned reliably.
- the elastic body has an annular shape so as to surround the periphery of the screw terminal portion.
- the gasket has an annular shape so as to surround the periphery of the threaded terminal portion.
- the stepped groove formed in the lid includes a first lid-side annular step formed concentrically with the terminal through-hole and a first lid-side annular ring on the back surface portion of the lid facing the terminal main body.
- a second lid side annular step portion formed concentrically with the step portion and continuous with the first lid side annular step portion can be used.
- the stepped groove formed in the terminal main body is formed concentrically with the screwed terminal portion in a state where the screwed terminal portion is fitted in the terminal through hole, and the first lid side annular stepped portion is formed.
- a second terminal-side annular step is formed between the first lid-side annular step and the first terminal-side annular step.
- a gasket is disposed between the second lid-side annular step and the second terminal-side annular step.
- the second elastic body is preferably in contact with the gasket.
- the battery case includes a battery case body having an opening and a lid that has a plurality of terminal through holes and seals the opening of the battery case body.
- a specific non-aqueous electrolyte secondary battery includes a first gasket that is fitted to the screw terminal portion of the electrode terminal and disposed between the lid and the nut, and surrounds the periphery of the screw terminal portion. And a second gasket disposed between the terminal body portion of the electrode terminal and the lid of the battery case.
- annular elastic body is disposed on the terminal main body so as to surround the periphery of the screwed terminal inside the second gasket, and the terminal of the electrode terminal It is in the state compressed between the main-body part and the lid
- the annular elastic body and the second gasket cooperate to prevent the nut from loosening and improve the sealing performance.
- the second gasket is made of an elastic material
- the second gasket and the elastic body can be formed integrally. This not only reduces the number of parts, but also facilitates assembly.
- the first gasket may include a fitting portion that is fitted into an annular recess formed between the terminal through hole and the screwed terminal portion. If such a fitting part is provided in the first gasket, a part of the annular recess can be filled with the fitting part, so that the amount of resin material used can be reduced. Further, it is preferable that a passage for introducing the resin material into the annular recess is formed in the fitting portion of the first gasket. If there is such a passage, the resin material can be filled after the first gasket is arranged, and therefore the filling operation of the resin material becomes easy.
- FIG. 1 is an external perspective view of a first embodiment of a nonaqueous electrolyte secondary battery of the present invention. It is sectional drawing of the terminal attachment structure part of the nonaqueous electrolyte secondary battery used in order to demonstrate the terminal seal structure of 1st Embodiment.
- FIG. 3 is an exploded cross-sectional view of the terminal mounting structure portion of FIG. 2.
- (A) And (B) is a figure which shows a part of assembly process, respectively. It is sectional drawing of the terminal attachment structure part of the nonaqueous electrolyte secondary battery used in order to demonstrate the terminal seal structure of the 2nd Embodiment of this invention.
- FIG. 6 is an exploded cross-sectional view of the terminal mounting structure portion of FIG. 5.
- FIG. 9 is an exploded cross-sectional view of the terminal mounting structure portion of FIG. 8. It is sectional drawing of the terminal attachment structure part of the nonaqueous electrolyte secondary battery used in order to demonstrate the terminal seal structure of the 3rd Embodiment of this invention. It is a disassembled sectional view of the terminal attachment structure part of FIG.
- FIG. 1 is an external perspective view of a first embodiment of a non-aqueous electrolyte secondary battery according to the present invention
- FIG. 2 is a terminal attachment of a non-aqueous electrolyte secondary battery used for explaining a terminal seal structure. It is sectional drawing of a structure part. In FIG. 2, electrode terminals 3 and nuts 8 to be described later are not shown in cross section.
- FIG. 3 is an exploded sectional view of the terminal mounting structure portion of FIG.
- reference numeral 1 denotes a battery case body having a stainless steel opening
- reference numeral 2 denotes a stainless steel lid that seals the opening of the battery case body 1.
- the battery case is constituted by the battery case body 1 and the lid 2.
- the material of the battery case main body 1 and the lid 2 is not limited to stainless steel, but may be other metals having resistance to electrolyte, such as aluminum or an alloy thereof, or a resin material such as an epoxy resin.
- the electrode terminal 3 for current collection is made of aluminum or copper, and integrally includes a screwed terminal portion 3A that penetrates the terminal through hole 9 and a terminal main body portion 3B that is electrically connected to an electrode group (not shown). ing.
- a first lid side annular step portion 11 ⁇ / b> A formed concentrically with the terminal through-hole 9 and a first lid side annular shape are formed on the back surface portion of the lid 2 facing the terminal main body portion 3 ⁇ / b> B.
- a step-like groove 11 is formed which is composed of a second lid-side annular step portion 11B formed concentrically with the step portion 11A and continuous with the first lid-side annular step portion 11A. Further, the terminal body 3B of the terminal fitting 3 is formed concentrically with the screwed terminal portion 3A in a state in which the screwed terminal portion 3A is fitted in the terminal through hole 9, and the first lid side annular stepped portion. 1st terminal side annular step part 12A which opposes 11A, and the 2nd lid side formed so that it may be concentric with 1st terminal annular step part 12A, and the 1st terminal side annular step part 12A A second terminal-side annular step portion 12B facing the annular step portion 11B is formed. The first terminal-side annular step 12A and the second terminal-side annular step 12B constitute a step-like groove 12 provided in the terminal body 3B.
- the electrode terminal 3 is fixed to the lid 2 by tightening a nut 8 to a screwed terminal portion 3A passing through the terminal through hole 9 of the lid 2 via a gasket 5 and a metal washer 7.
- an annular elastic body 4 made of an electrically insulating material is provided in a compressed state.
- the compressed elastic body 4 applies a force in a direction away from the lid 2 to the terminal body 3 ⁇ / b> B of the electrode terminal 3. This force becomes a force that attracts the screwed terminal portion 3A toward the inside of the battery case, and suppresses the occurrence of loosening of the nut 8.
- the annular elastic body 4 ensures the insulation between the lid 2 and the electrode terminal 3.
- the elastic body 4 is preferably made of a material having an appropriate compression reaction force.
- the elastic body 4 is formed of a rubber material.
- the rubber material can be selected from the group consisting of chloroprene rubber, nitrile rubber, ethylene propylene rubber, butyl rubber, urethane rubber, fluorine rubber, and silicon rubber.
- fluororubber is selected as the rubber-based material, and the shape thereof is an O-ring shape.
- the annular elastic body 4 is disposed between the first lid-side annular step portion 11A and the first terminal-side annular step portion 12A. Further, when the elastic body 4 is compressed, a resin-made annular gasket 5 (second gasket) is provided to prevent the elastic body 4 from being displaced radially outward.
- the annular gasket 5 is in contact with the outer peripheral surface of the annular elastic body 4, and the second lid side annular step portion 11 ⁇ / b> B of the lid 2 and the second terminal side annular step portion 12 ⁇ / b> B of the terminal body portion 3 ⁇ / b> B of the electrode terminal 3 Arranged between.
- the resin material of the resin gasket 5 of the present embodiment includes polyolefin resins such as polypropylene (PP) and polyethylene (PE); fluororesins such as perfluoroalkoxyalkane (PFA) and polytetrafluoroethylene (PTFE).
- polyolefin resins such as polypropylene (PP) and polyethylene (PE); fluororesins such as perfluoroalkoxyalkane (PFA) and polytetrafluoroethylene (PTFE).
- PPS polyphenylene sulfide
- PES polyimide resin
- PEEK polyetheretherketone resin
- PES polyethersulfone resin
- PFA polyethersulfone resin
- FIG. 4A when the lid 2 and the terminal body 3B of the electrode terminal 3 are opposed to each other through the resin gasket 5 and the elastic body 4, the inner peripheral portion of the elastic body 4 and the electrode terminal 3 are disposed.
- a recess 10 is formed between the terminal body 3 ⁇ / b> B and the lid 2.
- the concave portion 10 is a portion in contact with the outside air, and it is considered that the sealing performance of the elastic body 4 is remarkably lowered when moisture or the like enters.
- the elastic body 4 enters the recess 10, and there is a concern about the displacement of the elastic body 4. Therefore, in this embodiment, as shown in FIGS.
- the resin material 6 ′ is filled in the recess 10 and cured to form the filled resin portion 6.
- the resin material 6 ′ also enters the internal space of the gasket (first gasket) 13 provided on the lid 2. It extends not only inside the recess 10 but also outside thereof.
- the nut 8 is tightened, the elastic body 4 is crushed and deformed. Therefore, the diameter dimension of the terminal through hole 9 is smaller than the inner diameter dimension of the elastic body 4. That is, it is necessary for the resin material to wrap around the space produced by this dimensional difference. Therefore, it is important that the viscosity is not too high as a characteristic required for the resin material for forming the filled resin portion 6.
- parts made of a resin material such as the elastic body 4 and the resin gasket 5 are arranged around it, so it is important that the curing temperature is not too high.
- a thermosetting two-component mixed epoxy resin is used as the resin material 6 ′ used for forming the filling resin portion 6.
- the resin material 6 ′ is not limited to the two-component mixed epoxy resin used in the present embodiment, but is preferably other resin that cures near room temperature and has resistance to electrolytic solution. Material may be used.
- the resin gasket 13 is attached to the screw portion of the screwed terminal portion 3 ⁇ / b> A of the electrode terminal 3. Pass the metal washer 7 and tighten the nut 8.
- the resin material 6 ′ also enters the gasket 13. And when resin material 6 'hardens
- the resin gasket 13 is made of PFA like the resin gasket 5.
- the gasket 13 is made of resin. A wider one (width in the radial direction) was used.
- the metal washer 7 is disposed between the resin gasket 13 and the nut 8. An aluminum alloy was used for the metal washer 7 and the nut 8. After the nut 8 was fastened as described above, the lid 2 was put into a thermostat and the resin was cured.
- the lid 2 was subjected to a helium leak test to confirm the presence or absence of the leak.
- the tip of the helium leak tester was attached to the vicinity of the electrode terminal 3 of the lid 2 and decompressed. After depressurizing to a certain pressure, helium gas was sprayed from the outside, and when there was a leak, a test was conducted so that helium gas could be detected.
- FIG. 5 is a cross-sectional view of a terminal mounting structure portion of a nonaqueous electrolyte secondary battery used for explaining a terminal seal structure according to a second embodiment of the present invention.
- the electrode terminal 3 and the nut 8 are not shown in cross section.
- FIG. 6 is an exploded cross-sectional view of the terminal mounting structure portion of FIG.
- the second embodiment is different from the first embodiment in the shape of the first gasket 13 '.
- Other structures are the same as those of the first embodiment. That is, in the second embodiment, the positional relationship between the lid 2 and the electrode terminal 3, the material of the elastic body 4, and the installation status are the same as those in the first embodiment.
- the present embodiment as shown in FIG.
- the first gasket 13 ′ has a structure in which a gasket body 13′A and a fitting portion 13′B are integrally provided.
- the fitting portion 13'B is fitted into an annular recess formed between the terminal through hole 9 and the screwed terminal portion 3A.
- the first gasket 13 ' is a cylindrical fitting having a length equal to or greater than the thickness of the disk-shaped gasket body 13'A on the inner edge portion of the disk-shaped gasket body 13'A having a hole in the center.
- the portion 13′B has a shape provided integrally. In the present embodiment, as shown in FIG.
- the first bracket 13 ′ may be configured by combining two divided brackets 13′D obtained by dividing one bracket 13 ′ into two.
- the divided bracket 13'D includes a divided bracket main body 13'a and a divided fitting portion 13'b.
- the split fitting portions 13′b of the two split brackets 13′D are respectively formed in a part of the annular recess 10 formed between the lid 2 and the electrode terminal 3. Be placed.
- the shape and size of the divided fitting portion 13'b are determined so that a passage through which the resin passes is formed between the divided fitting portions 13'b of the two divided brackets 13'D arranged.
- the resin material 6 ' is filled from this space.
- the length of the split fitting portion 13 ′ b of the split bracket 13 ′ D is shorter than the plate thickness of the lid 2.
- a division number other than 2 such as 4 divisions may be used.
- the position of the annular elastic body 4 is determined. Can be fixed.
- FIG. 8 is a cross-sectional view of the terminal mounting structure portion of the nonaqueous electrolyte secondary battery used for explaining the terminal seal structure according to the third embodiment of the present invention.
- the electrode terminal 3 and the nut 8 are not shown in cross section.
- FIG. 9 is an exploded cross-sectional view of the terminal mounting structure portion of FIG.
- the third embodiment does not have the elastic body 4 as an independent component.
- the second gasket 5 ′ is formed of an elastic gasket material, and the second gasket 5 ′ and the elastic body 4 ′ are integrally formed.
- Other structures are the same as those of the first embodiment. That is, in the third embodiment, the positional relationship between the lid 2 and the electrode terminal 3, the material of the main part, and the installation status are the same as those in the first embodiment.
- the elastic body 4 ' is formed integrally with the gasket 5'.
- the elastic body 4 ′ is disposed between the first lid-side annular step portion 11 ⁇ / b> A and the first terminal-side annular step portion 12 ⁇ / b> A, and the gasket 5 ′ is the second lid-side annular step portion of the lid 2. 11B and the second terminal-side annular step 12B of the terminal body 3B.
- the gasket 5 ′ constituting the elastic body 4 ′ is made of a soft material that deforms along the shape of the elastic body 4 ′, it is considered that the strength of the seal portion cannot be maintained and leakage occurs. Therefore, the elastic body 4 ′ and the gasket 5 ′ are required to have a certain degree of hardness and a reaction force against compression. Therefore, as the material of the elastic body 4 ′ and the gasket 5 ′, not a rubber material but a polymer material used for a resin gasket is suitable. Among them, perfluoroalkoxyalkane (PFA) was selected in the present embodiment.
- PFA perfluoroalkoxyalkane
- the elastic bodies 4 ′ and the gaskets 5 ′ have a wide disk shape as in the case of the resin gasket 5 of the first embodiment.
- the elastic body 4 ′ made of the gasket material has a through-hole through which the threaded terminal portion 3 ⁇ / b> A of the electrode terminal 3 passes at the center.
- the annular recess 10 formed between the inner periphery of the elastic body 4 ′, the terminal main body 3 ⁇ / b> B of the electrode terminal 3, and the lid 2 is filled with the resin material 6 ′. Resin portion 6 is formed.
- a resin gasket 13 and a metal washer 7 are passed through the threaded terminal portion 3A of the electrode terminal 3, and a nut 8 is fastened.
- the fastening torque was set so that the amount of collapse of the gasket of the elastic body 4 ′ was approximately 50% of the original thickness.
- the leak test was performed on the present embodiment after the above-mentioned fastening by the same method as the first embodiment. As a result, in the leak test at the same degree of vacuum as in the first embodiment, no leak was confirmed. Therefore, it was confirmed that no leak was observed even in the structure of the present embodiment.
- FIG. 10 is a cross-sectional view of a terminal mounting structure portion of a nonaqueous electrolyte secondary battery used for explaining a terminal seal structure according to a fourth embodiment of the present invention.
- the electrode terminal 3 and the nut 8 are not shown in cross section.
- FIG. 11 is an exploded cross-sectional view of the terminal mounting structure portion of FIG.
- the second gasket 5 ' is formed of an elastic gasket material, and the second gasket 5' and the elastic body 4 'are integrated. It has a structure formed in In the present embodiment, an annular protrusion 15 is integrally formed on the first terminal-side annular step 12A provided on the terminal body 3A of the electrode terminal 3.
- the leak test was performed on the present embodiment after the above-mentioned fastening by the same method as the first embodiment. As a result, in the leak test at the same degree of vacuum as in the first embodiment, no leak was confirmed. Therefore, it was confirmed that no leak was observed even in the structure of the present embodiment.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
Description
図1は、本発明の非水電解液二次電池の第1の実施の形態の外観斜視図であり、図2は端子シール構造を説明するために用いる非水電解液二次電池の端子取付構造部の断面図である。なお図2においては、後述する電極端子3及びナット8については、断面にしていない。また図3には、図2の端子取付構造部の分解断面図を示している。図1において符号1は、ステンレス製の開口部を有する電槽本体を示しており、符号2は電槽本体1の開口部を密閉するステンレス製の蓋を示している。本実施の形態では、電槽本体1と蓋2とにより電槽が構成されている。電槽中には、電極群及び有機電解液が収容されている。電槽本体1及び蓋2の材質は、ステンレスに限定されるものではなく、耐電解液性を有する他の金属、例えば、アルミニウムまたはその合金等や、エポキシ樹脂等の樹脂材料でも良い。
図5は、本発明の第2の実施の形態の端子シール構造を説明するために用いる非水電解液二次電池の端子取付構造部の断面図である。なお図5においては、電極端子3及びナット8については、断面にしていない。また図6には、図5の端子取付構造部の分解断面図を示している。第2の実施の形態は、第1の実施の形態と比べて、第1のガスケット13´の形状が異なる。その他の構造は、第1の実施の形態と同じである。すなわち第2の実施の形態においては、蓋2と電極端子3の位置関係、弾性体4の材質、設置状況は第1の実施の形態と同じである。本実施の形態では、第1のガスケット13´が、図6に示すように、ガスケット本体13´Aと嵌合部13´Bとを一体に備えた構造を有している。嵌合部13´Bは、端子貫通孔9とネジ付き端子部3Aとの間に形成された環状凹部に嵌合される。第1のガスケット13´は、中央に穴の開いた円板状のガスケット本体13´Aの内縁部分に、円板状のガスケット本体13´Aの厚み以上の長さを有する円筒状の嵌合部13´Bが一体に設けられた形状を有している。本実施の形態では、図7(A)に示すように、ガスケット本体13´A及び嵌合部13´Bにそれぞれ切り欠き部14を設け、この切り欠き部14から樹脂材料6´を充填するようにしてもよい。また図7(B)に示すように、1つのブラケット13´を2分割して得られる分割ブラケット13´Dを2個組み合わせて、第1のブラケット13´を構成してもよい。分割ブラケット13´Dは、分割ブラケット本体13´aと分割嵌合部13´bとを備えている。分割ブラケット13´Dを用いる場合には、蓋2と電極端子3との間に形成される環状の凹部10の一部に、2つの分割ブラケット13´Dの分割嵌合部13´bがそれぞれ配置される。配置された2個の分割ブラケット13´Dの分割嵌合部13´bの間に樹脂が通る通路が空くように、分割嵌合部13´bの形状寸法が定められている。この空間から樹脂材料6´が充填される。また、分割ブラケット13´Dの分割嵌合部13´bの長さは、蓋2の板厚より短い。分割ブラケットとしては、例えば、4分割など2以外の分割数でも良い。
図8は、本発明の第3の実施の形態の端子シール構造を説明するために用いる非水電解液二次電池の端子取付構造部の断面図である。なお図8においては、電極端子3及びナット8については、断面にしていない。また図9には、図8の端子取付構造部の分解断面図を示している。第3の実施の形態は、第1の実施の形態と比べて、独立部品としての弾性体4が無い。本実施の形態では、第2のガスケット5´が弾性を有するガスケット材料により形成されており、第2のガスケット5´と弾性体4´とが一体に形成された構造をしている。その他の構造は、第1の実施の形態と同じである。すなわち第3の実施の形態においては、蓋2と電極端子3の位置関係、主要部の材質、設置状況は第1の実施の形態と同じである。
図10は、本発明の第4の実施の形態の端子シール構造を説明するために用いる非水電解液二次電池の端子取付構造部の断面図である。なお図10においては、電極端子3及びナット8については、断面にしていない。また図11には、図10の端子取付構造部の分解断面図を示している。第4の実施の形態は、第3の実施の形態と同様に、第2のガスケット5´が弾性を有するガスケット材料により形成されており、第2のガスケット5´と弾性体4´とが一体に形成された構造をしている。本実施の形態では、電極端子3の端子本体部3Aに設けた第1の端子側環状段部12Aの上に環状の突部15が一体に形成されている。その他の構造は、第3の実施の形態と同じである。第3の実施の形態と同様に、ナット8を締結することで、電極端子3が引き上げられ、ガスケット材料からなる弾性体4´のガスケットを蓋2と電極端子3の段違いの部分で押しつぶすが、電極端子3の端子本体部3Aに設けた第1の端子側環状段部12Aの上に環状の突部15でも弾性体4のガスケットを圧縮することで、より確実に線シールを行うことができる。
2 蓋
3 電極端子
4 弾性体
5,5´ ガスケット
6 充填樹脂部
6´樹脂材料
7 金属ワッシャ
8 ナット
9 端子貫通孔
10 凹部
Claims (14)
- 開口部を有する電槽本体及び複数の端子貫通孔を有して前記電槽本体の前記開口部を密閉する蓋からなる電槽と、
前記電槽に収容される電極群及び有機電解液と、
前記電極群に電気的に接続される端子本体部と、前記端子本体部と一体に設けられて前記蓋の前記端子貫通孔を貫通するネジ付き端子部とを有し、前記端子貫通孔を貫通した前記ネジ付き端子部にナットが締め付けられて前記蓋に対して固定される複数の電極端子と、
前記ネジ付き端子部に嵌合されて前記蓋と前記ナットとの間に配置された第1のガスケットと、
前記ネジ付き端子部の周囲を囲むように前記端子本体部の上に配置され、前記電極端子の前記端子本体部と前記電槽の前記蓋との間に配置された第2のガスケットと、
前記第2のガスケットの内側において、前記ネジ付き端子部の周囲を囲むように前記端子本体部の上に配置され、前記電極端子の前記端子本体部と前記電槽の前記蓋との間で圧縮された状態になっている環状の弾性体と、
少なくとも前記環状の弾性体と、前記ネジ付き端子部と、前記端子本体部とにより囲まれた環状の凹部に充填された樹脂材料が硬化して形成された充填樹脂部とを備えていることを特徴とする非水電解液二次電池。 - 前記第2のガスケットが弾性材料により形成されており、前記第2のガスケットと前記弾性体とが一体に形成されている請求項1に記載の非水電解液二次電池。
- 前記第1のガスケットは、前記端子貫通孔と前記ネジ付き端子部との間に形成された環状の凹部に嵌合される嵌合部を備えている請求項1に記載の非水電解液二次電池。
- 前記第1のガスケットの前記嵌合部には、前記環状の凹部に前記樹脂材料を導入する通路が形成されている請求項3に記載の非水電解液二次電池。
- 開口部を有する電槽本体と前記電槽本体の前記開口部を密閉する蓋とからなる電槽と、
前記電槽に収容される電極群及び有機電解液と、
前記電極群に電気的に接続される端子本体部と、前記端子本体部と一体に設けられて前記蓋を貫通するネジ付き端子部とを有し、前記蓋を貫通した前記ネジ付き端子部にナットが締め付けられて前記蓋に対して固定される複数の電極端子と、
前記電極端子の前記端子本体部と前記電槽の前記蓋との間に圧縮された状態で配置された弾性体とを備えていることを特徴とする非水電解液二次電池。 - 前記弾性体が、ゴム系材料であることを特徴とする請求項1または5に記載の非水電解液二次電池。
- 前記ゴム系材料が、クロロプレンゴム、ニトリルゴム、エチレンプロピレンゴム、ブチルゴム、ウレタンゴム、フッ素ゴム、シリコンゴムから選ばれる少なくとも1種であることを特徴とする請求項6記載の非水電解液二次電池。
- 前記弾性体の外側に、前記端子本体部と前記蓋との間に配置されたガスケットを有していることを特徴とする請求項5に記載の非水電解液二次電池。
- 前記ガスケットが、樹脂材料で形成されていることを特徴とする請求項8記載の非水電解液二次電池。
- 前記ガスケットが、ゴムガスケット、合成樹脂ガスケット、セミメタリックガスケット、膨張黒鉛ガスケットから選ばれる少なくとも1種であることを特徴とする請求項8記載の非水電解液二次電池。
- 前記蓋、前記端子本体部及び前記弾性体で囲まれる凹部に充填された樹脂材料が硬化して形成された充填樹脂部をさらに備えていることを特徴とする請求項5~10のいずれか1項に記載の非水電解液二次電池。
- 前記樹脂充填部が、1液または2液の混合樹脂材料を硬化させて形成されたものであることを特徴とする請求項1に記載の非水電解液二次電池。
- 前記蓋と前記電極端子の前記端子本体部のそれぞれに階段状の溝が形成され、前記階段状の溝に、前記弾性体及び前記ガスケットが配置されていることを特徴とする請求項5~10のいずれか1項に記載の非水電解液二次電池。
- 前記弾性体は前記ネジ付き端子部の周囲を囲むように環状を呈しており、
前記ガスケットは前記ネジ付き端子部の周囲を囲むように環状を呈しており、
前記蓋に形成された前記階段状の溝は、前記端子本体部と対向する前記蓋の裏面部分において、前記端子貫通孔と同心的に形成された第1の蓋側環状段部と、前記第1の蓋側環状段部と同心的に且つ前記第1の蓋側環状段部と連続するように形成された第2の蓋側環状段部とからなり、
前記端子本体部に形成された前記階段状の溝は、前記ネジ付き端子部が前記端子貫通孔に嵌合された状態において、前記ネジ付き端子部と同心的に形成されて前記第1の蓋側環状段部と対向する第1の端子側環状段部と、前記第1の端子環状段部と同心的に且つ前記第1の端子側環状段部と連続するように形成された前記第2の蓋側環状段部と対向する第2の端子側環状段部とからなり、
前記第1の蓋側環状段部と前記第1の端子側環状段部との間に前記弾性体が配置されており、
前記第2の蓋側環状段部と前記第2の端子側環状段部との間に前記ガスケットが配置されており、
前記第2の弾性体が前記ガスケットと接触している請求項13に記載の非水電解液二次電池。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11826868.9A EP2620993A1 (en) | 2010-09-21 | 2011-09-21 | Nonaqueous electrolyte secondary battery |
JP2012535052A JP5652476B2 (ja) | 2010-09-21 | 2011-09-21 | 非水電解液二次電池 |
US13/823,178 US9240576B2 (en) | 2010-09-21 | 2011-09-21 | Non-aqueous electrolyte secondary battery |
CN201180045374.XA CN103125032B (zh) | 2010-09-21 | 2011-09-21 | 非水电解液二次电池 |
KR1020137010131A KR20130099975A (ko) | 2010-09-21 | 2011-09-21 | 비수 전해액 이차 전지 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010210416 | 2010-09-21 | ||
JP2010-210416 | 2010-09-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012039423A1 true WO2012039423A1 (ja) | 2012-03-29 |
Family
ID=45873907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/071480 WO2012039423A1 (ja) | 2010-09-21 | 2011-09-21 | 非水電解液二次電池 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9240576B2 (ja) |
EP (1) | EP2620993A1 (ja) |
JP (1) | JP5652476B2 (ja) |
KR (1) | KR20130099975A (ja) |
CN (1) | CN103125032B (ja) |
WO (1) | WO2012039423A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015204218A (ja) * | 2014-04-15 | 2015-11-16 | 株式会社豊田自動織機 | 蓄電装置 |
JP2015213043A (ja) * | 2014-05-07 | 2015-11-26 | 株式会社豊田自動織機 | 蓄電装置の製造方法及び蓄電装置 |
WO2016059823A1 (ja) * | 2014-02-12 | 2016-04-21 | 住友電気工業株式会社 | 蓄電デバイス |
WO2016060265A1 (ja) * | 2014-10-17 | 2016-04-21 | 株式会社 豊田自動織機 | 蓄電装置 |
JP2017063017A (ja) * | 2015-09-24 | 2017-03-30 | 現代自動車株式会社Hyundai Motor Company | 多層集電板構造を持つ燃料電池スタック |
JP2018525800A (ja) * | 2015-11-03 | 2018-09-06 | ファオヴェー−ファオエム フォルシュングスゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | 端子フィードスルーのための封止システム |
JP2021015709A (ja) * | 2019-07-11 | 2021-02-12 | 昭和電工マテリアルズ株式会社 | 電池 |
JPWO2021193409A1 (ja) * | 2020-03-26 | 2021-09-30 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130236757A1 (en) * | 2012-03-07 | 2013-09-12 | Leyden Energy | Cell assemblies with neutral cases |
JP6152640B2 (ja) * | 2012-12-18 | 2017-06-28 | 株式会社Gsユアサ | 密閉型電池用ゴム製弁体、安全弁装置及びアルカリ蓄電池 |
US20160197323A1 (en) * | 2015-01-05 | 2016-07-07 | Johnson Controls Technology Company | Battery module vent and handle configuration system and method |
USD782409S1 (en) * | 2015-03-30 | 2017-03-28 | Johnson Controls Technology Company | Lithium ion battery cell with terminal washers |
KR102408823B1 (ko) * | 2015-08-27 | 2022-06-13 | 삼성에스디아이 주식회사 | 이차 전지 |
JP6731176B2 (ja) * | 2016-01-21 | 2020-07-29 | 株式会社Gsユアサ | 蓄電素子、及び蓄電素子の製造方法 |
KR102017232B1 (ko) * | 2016-02-05 | 2019-09-02 | 주식회사 엘지화학 | 배터리 모듈 및 이를 포함하는 배터리 팩 |
US10297812B2 (en) | 2016-07-14 | 2019-05-21 | Johnson Controls Technology Company | Terminals of an electrochemical cell |
EP3654403A1 (en) * | 2017-07-12 | 2020-05-20 | NOK Corporation | Gasket for secondary battery |
CN109411649A (zh) * | 2017-08-17 | 2019-03-01 | 江苏津谊新能源科技有限公司 | 一种蓄电池极柱的密封方法 |
CN108428821B (zh) * | 2017-08-30 | 2024-05-10 | 宁德时代新能源科技股份有限公司 | 二次电池以及电池模组 |
DE102018210646B4 (de) * | 2018-06-28 | 2024-02-29 | Sgl Carbon Se | Dichtungssegment zur Temperaturkontrolle einer fluidgekühlten Batterie |
JP6636121B1 (ja) * | 2018-11-23 | 2020-01-29 | 株式会社大北製作所 | 端子付きケース部材及びその製造方法 |
DE102019109541A1 (de) * | 2019-04-11 | 2020-10-15 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Herstellen einer Deckelbaugruppe für ein Zellgehäuse einer prismatischen Batteriezelle mit einem Dichtungselement sowie Batteriezelle |
DE102019218656A1 (de) * | 2019-11-30 | 2021-06-02 | Robert Bosch Gmbh | Deckelbaugruppe eines Batteriezellengehäuses, Verfahren zu deren Herstellung und Verwendung einer solchen |
US20230155220A1 (en) * | 2020-10-05 | 2023-05-18 | Turun Ammattikorkeakoulu Oy | Battery lid and battery assembly |
CN117374491B (zh) * | 2023-12-07 | 2024-02-20 | 蜂巢能源科技股份有限公司 | 电池及用电设备 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0877999A (ja) | 1994-08-31 | 1996-03-22 | Japan Storage Battery Co Ltd | 電 池 |
JP2002289156A (ja) * | 2001-03-26 | 2002-10-04 | Japan Storage Battery Co Ltd | 蓄電池 |
JP2003086151A (ja) * | 2001-09-12 | 2003-03-20 | Japan Storage Battery Co Ltd | リチウム電池 |
JP2004253295A (ja) * | 2003-02-21 | 2004-09-09 | Toyota Motor Corp | 蓄電素子 |
JP2009076385A (ja) * | 2007-09-21 | 2009-04-09 | Eliiy Power Co Ltd | 電極端子取付構造及び非水電解質二次電池 |
JP2009087613A (ja) * | 2007-09-28 | 2009-04-23 | Sanyo Electric Co Ltd | 角型電池 |
JP2009134985A (ja) | 2007-11-30 | 2009-06-18 | Toyota Motor Corp | 密閉型電池およびその製造方法 |
JP2009252719A (ja) | 2008-04-11 | 2009-10-29 | Asahi Glass Co Ltd | リチウムイオン二次電池の絶縁シール用パッキン |
JP2010170920A (ja) * | 2009-01-26 | 2010-08-05 | Toyota Motor Corp | 電池 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060183020A1 (en) * | 2005-02-15 | 2006-08-17 | Rovcal, Inc. | Sealing assembly for electrochemical cell |
CN2729910Y (zh) * | 2004-09-15 | 2005-09-28 | 艾默生网络能源有限公司 | 一种蓄电池密封装置 |
JP5546808B2 (ja) * | 2009-07-03 | 2014-07-09 | 日立マクセル株式会社 | 扁平形電池の取付方法及び回転部分に取り付けられる装置 |
US8709632B2 (en) * | 2009-11-13 | 2014-04-29 | Samsung Sdi Co., Ltd. | Battery module |
-
2011
- 2011-09-21 US US13/823,178 patent/US9240576B2/en active Active
- 2011-09-21 JP JP2012535052A patent/JP5652476B2/ja not_active Expired - Fee Related
- 2011-09-21 KR KR1020137010131A patent/KR20130099975A/ko not_active Application Discontinuation
- 2011-09-21 CN CN201180045374.XA patent/CN103125032B/zh not_active Expired - Fee Related
- 2011-09-21 EP EP11826868.9A patent/EP2620993A1/en not_active Withdrawn
- 2011-09-21 WO PCT/JP2011/071480 patent/WO2012039423A1/ja active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0877999A (ja) | 1994-08-31 | 1996-03-22 | Japan Storage Battery Co Ltd | 電 池 |
JP2002289156A (ja) * | 2001-03-26 | 2002-10-04 | Japan Storage Battery Co Ltd | 蓄電池 |
JP2003086151A (ja) * | 2001-09-12 | 2003-03-20 | Japan Storage Battery Co Ltd | リチウム電池 |
JP2004253295A (ja) * | 2003-02-21 | 2004-09-09 | Toyota Motor Corp | 蓄電素子 |
JP2009076385A (ja) * | 2007-09-21 | 2009-04-09 | Eliiy Power Co Ltd | 電極端子取付構造及び非水電解質二次電池 |
JP2009087613A (ja) * | 2007-09-28 | 2009-04-23 | Sanyo Electric Co Ltd | 角型電池 |
JP2009134985A (ja) | 2007-11-30 | 2009-06-18 | Toyota Motor Corp | 密閉型電池およびその製造方法 |
JP2009252719A (ja) | 2008-04-11 | 2009-10-29 | Asahi Glass Co Ltd | リチウムイオン二次電池の絶縁シール用パッキン |
JP2010170920A (ja) * | 2009-01-26 | 2010-08-05 | Toyota Motor Corp | 電池 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016059823A1 (ja) * | 2014-02-12 | 2016-04-21 | 住友電気工業株式会社 | 蓄電デバイス |
JP2015204218A (ja) * | 2014-04-15 | 2015-11-16 | 株式会社豊田自動織機 | 蓄電装置 |
JP2015213043A (ja) * | 2014-05-07 | 2015-11-26 | 株式会社豊田自動織機 | 蓄電装置の製造方法及び蓄電装置 |
WO2016060265A1 (ja) * | 2014-10-17 | 2016-04-21 | 株式会社 豊田自動織機 | 蓄電装置 |
JPWO2016060265A1 (ja) * | 2014-10-17 | 2017-06-15 | 株式会社豊田自動織機 | 蓄電装置 |
JP2017063017A (ja) * | 2015-09-24 | 2017-03-30 | 現代自動車株式会社Hyundai Motor Company | 多層集電板構造を持つ燃料電池スタック |
JP2018525800A (ja) * | 2015-11-03 | 2018-09-06 | ファオヴェー−ファオエム フォルシュングスゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | 端子フィードスルーのための封止システム |
JP2021015709A (ja) * | 2019-07-11 | 2021-02-12 | 昭和電工マテリアルズ株式会社 | 電池 |
JP7360833B2 (ja) | 2019-07-11 | 2023-10-13 | エナジーウィズ株式会社 | 電池 |
JPWO2021193409A1 (ja) * | 2020-03-26 | 2021-09-30 |
Also Published As
Publication number | Publication date |
---|---|
US9240576B2 (en) | 2016-01-19 |
US20130177803A1 (en) | 2013-07-11 |
JPWO2012039423A1 (ja) | 2014-02-03 |
EP2620993A1 (en) | 2013-07-31 |
KR20130099975A (ko) | 2013-09-06 |
CN103125032B (zh) | 2015-09-02 |
JP5652476B2 (ja) | 2015-01-14 |
CN103125032A (zh) | 2013-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5652476B2 (ja) | 非水電解液二次電池 | |
US20180294447A1 (en) | Cap assembly for a secondary battery and secondary battery | |
US8598471B2 (en) | Electric storage device | |
JP5618123B2 (ja) | 密閉型電池 | |
JP6037196B2 (ja) | 蓄電素子の製造方法 | |
US20150155532A1 (en) | Battery | |
JP5772769B2 (ja) | 密閉型電池の製造方法 | |
JP2006324178A (ja) | 二次電池 | |
JP2012234785A (ja) | 密閉型電池およびその封口体 | |
JP2016105374A (ja) | 密閉型電池 | |
JP5594891B2 (ja) | 防水端子箱 | |
KR101432461B1 (ko) | 전지 | |
US11437675B2 (en) | Cell structure of solid state battery | |
JP2010170920A (ja) | 電池 | |
JP2011108629A (ja) | バッテリー装置 | |
CN208284579U (zh) | 铝壳电池 | |
JP2005302625A (ja) | 電池 | |
JP2015056391A (ja) | 密閉型電気化学デバイス用封口体とそのガスケット | |
CN111902960B (zh) | 电池 | |
JP2012138202A (ja) | 電池及び電池の製造方法 | |
JP2012238510A (ja) | 電池の製造方法 | |
JP2012234677A (ja) | 電池及び電池の製造方法 | |
JP7360833B2 (ja) | 電池 | |
JP7360861B2 (ja) | 電池 | |
JP2012221897A (ja) | 端子構造、電池、及び、電池の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201180045374.X Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11826868 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2012535052 Country of ref document: JP Kind code of ref document: A |
|
REEP | Request for entry into the european phase |
Ref document number: 2011826868 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011826868 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13823178 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20137010131 Country of ref document: KR Kind code of ref document: A |