WO2014091544A1 - 非水系電池用の電極リード線部材 - Google Patents
非水系電池用の電極リード線部材 Download PDFInfo
- Publication number
- WO2014091544A1 WO2014091544A1 PCT/JP2012/081979 JP2012081979W WO2014091544A1 WO 2014091544 A1 WO2014091544 A1 WO 2014091544A1 JP 2012081979 W JP2012081979 W JP 2012081979W WO 2014091544 A1 WO2014091544 A1 WO 2014091544A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wire member
- electrode lead
- lead wire
- resin
- thin film
- Prior art date
Links
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 239000010410 layer Substances 0.000 claims abstract description 65
- 239000000565 sealant Substances 0.000 claims abstract description 54
- 239000011247 coating layer Substances 0.000 claims abstract description 52
- 238000009501 film coating Methods 0.000 claims abstract description 51
- 239000010409 thin film Substances 0.000 claims abstract description 51
- 239000010408 film Substances 0.000 claims abstract description 50
- 229920005989 resin Polymers 0.000 claims abstract description 47
- 239000011347 resin Substances 0.000 claims abstract description 47
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 20
- 229920005672 polyolefin resin Polymers 0.000 claims abstract description 14
- 239000011888 foil Substances 0.000 claims abstract description 12
- 229910001512 metal fluoride Inorganic materials 0.000 claims abstract description 11
- 239000004593 Epoxy Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 125000000524 functional group Chemical group 0.000 claims abstract description 5
- 239000000853 adhesive Substances 0.000 claims description 36
- 230000001070 adhesive effect Effects 0.000 claims description 29
- 238000003860 storage Methods 0.000 claims description 24
- 239000005001 laminate film Substances 0.000 claims description 21
- 229920006026 co-polymeric resin Polymers 0.000 claims description 12
- 239000002356 single layer Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- 238000007639 printing Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000000691 measurement method Methods 0.000 claims description 3
- 238000005280 amorphization Methods 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 claims description 2
- 230000032798 delamination Effects 0.000 claims description 2
- 238000005338 heat storage Methods 0.000 claims description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 24
- 229910001416 lithium ion Inorganic materials 0.000 description 24
- -1 polyethylene Polymers 0.000 description 23
- 239000008151 electrolyte solution Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 20
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 14
- 239000003792 electrolyte Substances 0.000 description 14
- 239000004698 Polyethylene Substances 0.000 description 12
- 229920000573 polyethylene Polymers 0.000 description 12
- 239000004743 Polypropylene Substances 0.000 description 10
- 229920001155 polypropylene Polymers 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 8
- 230000014759 maintenance of location Effects 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 239000002952 polymeric resin Substances 0.000 description 7
- 229920003002 synthetic resin Polymers 0.000 description 7
- FTBATIJJKIIOTP-UHFFFAOYSA-K trifluorochromium Chemical compound F[Cr](F)F FTBATIJJKIIOTP-UHFFFAOYSA-K 0.000 description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 description 6
- 229910021564 Chromium(III) fluoride Inorganic materials 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 229920006125 amorphous polymer Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 125000003700 epoxy group Chemical group 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 238000007747 plating Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 229920001567 vinyl ester resin Polymers 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- KERTUBUCQCSNJU-UHFFFAOYSA-L nickel(2+);disulfamate Chemical compound [Ni+2].NS([O-])(=O)=O.NS([O-])(=O)=O KERTUBUCQCSNJU-UHFFFAOYSA-L 0.000 description 3
- 239000005486 organic electrolyte Substances 0.000 description 3
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 125000003158 alcohol group Chemical group 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910021563 chromium fluoride Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical group CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 229920005604 random copolymer Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- MEGHWIAOTJPCHQ-UHFFFAOYSA-N ethenyl butanoate Chemical compound CCCC(=O)OC=C MEGHWIAOTJPCHQ-UHFFFAOYSA-N 0.000 description 1
- GFJVXXWOPWLRNU-UHFFFAOYSA-N ethenyl formate Chemical compound C=COC=O GFJVXXWOPWLRNU-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- QHEDSQMUHIMDOL-UHFFFAOYSA-J hafnium(4+);tetrafluoride Chemical compound F[Hf](F)(F)F QHEDSQMUHIMDOL-UHFFFAOYSA-J 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- SHXXPRJOPFJRHA-UHFFFAOYSA-K iron(iii) fluoride Chemical compound F[Fe](F)F SHXXPRJOPFJRHA-UHFFFAOYSA-K 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
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- 239000012528 membrane Substances 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral 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
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- BFDQRLXGNLZULX-UHFFFAOYSA-N titanium hydrofluoride Chemical compound F.[Ti] BFDQRLXGNLZULX-UHFFFAOYSA-N 0.000 description 1
- XROWMBWRMNHXMF-UHFFFAOYSA-J titanium tetrafluoride Chemical compound [F-].[F-].[F-].[F-].[Ti+4] XROWMBWRMNHXMF-UHFFFAOYSA-J 0.000 description 1
- KOZCZZVUFDCZGG-UHFFFAOYSA-N vinyl benzoate Chemical compound C=COC(=O)C1=CC=CC=C1 KOZCZZVUFDCZGG-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- OMQSJNWFFJOIMO-UHFFFAOYSA-J zirconium tetrafluoride Chemical compound F[Zr](F)(F)F OMQSJNWFFJOIMO-UHFFFAOYSA-J 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/74—Terminals, e.g. extensions of current collectors
-
- 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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/121—Organic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/80—Gaskets; Sealings
-
- 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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered 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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
- H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
- H01M50/129—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers with two or more layers of only 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
- H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag 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
- H01M50/547—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
- H01M50/562—Terminals characterised by the material
-
- 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 an electrode lead member for a non-aqueous battery using an organic electrolyte as an electrolyte, such as a lithium ion battery or an electric double layer capacitor (hereinafter referred to as a capacitor) as a secondary battery.
- an organic electrolyte such as a lithium ion battery or an electric double layer capacitor (hereinafter referred to as a capacitor) as a secondary battery.
- the outer container for storing lithium-ion batteries used in electric vehicles and the like is made of a flat bag made by using a battery outer laminate in which an aluminum foil and a resin film are laminated, or drawn or stretched. A molded container is used to reduce the thickness and weight.
- the electrolyte solution of a lithium ion battery has the property of being sensitive to moisture and light.
- a battery exterior laminate in which a base material layer made of polyamide or polyester and an aluminum foil are laminated is used as an exterior material for a lithium ion battery, which is excellent in waterproofness and light shielding properties.
- a mounting container 30 as shown in FIG. 3A is used. That is, a tray-like shape having a recess 31 is formed in advance by using a laminate for battery exterior by drawing or the like, and accessories such as a lithium ion battery (not shown) and an electrode 36 are attached to the recess 31 of the tray.
- the lid member 33 made of a battery exterior laminate is stacked from above to wrap the battery, and the flange portion 32 of the tray and the four side edges 34 of the lid member 33 are heat-sealed. To seal.
- the storage container 35 formed by the method of placing the battery in the concave portion 31 of the tray the battery can be stored from above, so that the productivity is high.
- the depth of the tray (hereinafter, the tray depth is sometimes referred to as “throttle”) is 5 to 5 for a conventional small lithium ion battery. It is about 6 mm.
- a storage container for a larger battery is required.
- a deeper drawing tray has to be formed, which increases technical difficulties.
- strong acid generated from the inside of the battery exterior laminate may permeate, and as a result, the aluminum foil may corrode with strong acid and deteriorate. As a result, the electrolyte leaks and the battery performance decreases, and the lithium ion battery may ignite.
- Patent Document 1 discloses that the surface of the aluminum foil is subjected to chromate treatment. Measures for forming a film and improving corrosion resistance are disclosed.
- chromate treatment is problematic from the viewpoint of environmental measures because it uses chromium, which is a heavy metal, and hexavalent chromium cannot be used because it is a harmful substance that affects the human body. Therefore, a chromate treatment solution with trivalent chromium is used.
- the chemical conversion treatment other than the chromate treatment has a low effect of improving the corrosion resistance.
- the aluminum material that is the positive electrode member of both the positive electrode and the negative electrode has good electrolytic solution resistance, but the copper plate that is the negative electrode member is plated with nickel on the surface layer. Even if trivalent chromium is chromated, the resistance to electrolyte is low.
- a resin film of the same resin type as the sealant of the laminate film laminate is thermally bonded to a part of the electrode member.
- a resin film having an adhesive property with a metal for example, a resin film such as an ionomer, a copolymer resin of ethylene and acrylic acid (EAA), or a polyolefin resin of maleic anhydride graft copolymer is used.
- a resin film such as an ionomer, a copolymer resin of ethylene and acrylic acid (EAA), or a polyolefin resin of maleic anhydride graft copolymer is used.
- An object of the present invention is to provide an electrode lead wire member for a non-aqueous battery that has improved corrosion resistance, high moisture barrier property, and high productivity so that the life of the battery is extended.
- the resin film of the same resin type as the sealant of the laminate film laminate is used as a sealant layer in advance in a portion where the laminate film laminate of the exterior material and the electrode lead wire member are joined. Heat-bonded.
- the sealant layer is a multilayer or a single layer, and contains a heat-adhesive polyolefin resin having an epoxy functional group at least on the interface side of the sealant layer with the electrode lead wire member.
- the present invention provides an electrode lead wire member drawn from a non-aqueous battery storage container using a laminate film laminate of an aluminum foil and a resin film as an exterior material, and is a metallic lead-out portion
- a thin film coating layer comprising a metal fluoride or a derivative thereof and a resin containing a hydroxyl group or a copolymer resin thereof, and a sealant layer are sequentially laminated on the lead-out part, and the sealant layer is a multilayer
- the film is a single layer, and is thermally bonded onto the surface of the lead-out portion, and contains a heat-adhesive polyolefin resin having an epoxy functional group at least on the interface side with the lead-out portion of the sealant layer.
- An electrode lead member is provided.
- the metal fluoride or derivative thereof is preferably a substance that crosslinks the hydroxyl group-containing resin or copolymer resin thereof and passivates the aluminum surface.
- the thin film coating layer is formed in a pattern by printing on the surface of the lead-out portion.
- the thin film coating layer formed on the surface of the lead-out portion is made water resistant by crosslinking or amorphization by heat treatment.
- the thin film coating layer and the sealant layer are formed by heat treatment or storage at room temperature until the adhesive strength of both is 10 N / inch or more after being laminated by thermal bonding.
- N / inch corresponds to N / 25.4 mm.
- the sealant layer has a thickness of 50 ⁇ m or more and 300 ⁇ m or less, and the thin film coating layer has a thickness of 0.01 to 1.0 ⁇ m.
- the thin film coating layer and the sealant layer laminated thereon Is preferably 10 N / inch or more as measured by the peeling measurement method A defined in JIS C6471.
- both end portions of the electrode lead wire member seen in the cross section are crushed so that the thickness is thinner than the central portion of the cross section.
- the thin film coating layer of the electrode lead wire member made of a metal fluoride or a derivative thereof and a hydroxyl group-containing resin or a copolymer resin thereof is water-resistant by being crosslinked or amorphized by heat treatment. As a result, it is possible to prevent the electrolyte from entering from both end portions of the electrode lead wire member as viewed in cross section. Also, if both ends of the electrode lead wire member viewed in the cross section are crushed and the thickness is made thinner than the central portion of the cross section, the adhesion between the electrode lead wire member and the laminate film laminate is improved, and the gap portion And the infiltration of the electrolyte is reduced.
- FIG. 4B is a cross-sectional view taken along the line SS in FIG. 4A. It is a top view which shows an example of the electrode lead wire member concerning this invention.
- the electrode lead wire member according to the present invention will be described with reference to FIGS. 1 and 2, taking as an example a case where the electrode lead wire member is drawn from a storage container for a lithium ion battery manufactured using a battery exterior laminate.
- the electrode lead wire member 18 and the lithium ion battery 17 of the present invention are contained in a battery outer container 20 formed by folding a battery outer laminate 10. Furthermore, the three side edge portions 19 of the battery exterior container 20 are heat-sealed to form a bag.
- the electrode lead wire member 18 is pulled out from the battery outer container 20 as shown in FIG. 3A and 3B show the storage method in the battery storage container of the lithium ion battery manufactured using the electrode lead wire member 18 according to the present invention.
- the battery exterior laminate 10 made of a laminate film laminate has a base resin film 11, an aluminum foil 12, and a sealant layer 13 bonded via adhesive layers 15 and 16, respectively.
- the electrode lead wire member 18 is provided with a lead-out portion 21 made of aluminum, and a resin containing a metal fluoride or a derivative thereof and a hydroxyl group on the surface of the lead-out portion 21 or a copolymer thereof.
- a thin film coating layer 22 made of resin and a sealant layer 23 are sequentially laminated.
- chromate treatment is desirable, and among them, a thin film coating layer made of a metal fluoride or a derivative thereof, containing a hydroxyl group-containing resin or a copolymer resin thereof as a main component, and aluminum Treatment with a liquid containing a substance that passivates the surface of the surface is desirable.
- the corrosion resistance of the coating layer is improved even when the treatment liquid does not contain a metal fluoride or a derivative thereof.
- the thin film coating layer 22 is formed in a pattern on the surface of the lead-out portion 21 by printing.
- the thin film coating layer 22 formed on the surface of the lead-out portion 21 is water-resistant by being crosslinked or amorphized by heat treatment.
- the electrode lead wire member is made of an aluminum plate for the positive electrode and a metal obtained by coating the copper plate with nickel plating for the negative electrode.
- the lead-out portion 21 of the electrode lead wire member 18 and the laminate film laminate 10 include In advance, a sealant layer 23 made of a resin film of the same resin type as the sealant layer 13 of the laminate film laminate 10 is formed.
- This sealant layer 23 is a single layer or multiple layers, and a sealant layer containing a thermal adhesive polyolefin resin having an epoxy group is laminated on the sealant layer on the interface side with the lead-out portion 21 of the lead wire member. ing.
- the sealant layer 23 when the sealant layer 23 is a single layer, the whole contains a heat-adhesive polyolefin resin.
- the sealant layer 23 when the sealant layer 23 is a multilayer, it is sufficient that at least the layer in contact with the lead-out portion 21 or the thin film coating layer 22 contains a heat-adhesive polyolefin resin, and other layers also contain the heat-adhesive polyolefin resin. May be.
- the sealant layer 23 is a multilayer, other than the layer in contact with the lead-out portion 21 or the thin film coating layer 22, it is composed of other resins such as ordinary polyolefin resin having no epoxy group such as polyethylene and polypropylene, and acid-modified polyolefin resin.
- the layer containing the heat-adhesive polyolefin resin in the sealant layer 23 may be composed of only the heat-adhesive polyolefin resin having an epoxy group, or a mixture, compound or polymer alloy of this and other resins. Etc.
- a method of forming a multilayer sealant layer a sand lamination method by an extrusion laminating method may be used, or a multilayer film may be laminated when forming the sealant layer into a film.
- a corrosion-resistant thin film coating layer is not formed on the surface of the electrode lead wire member, moisture and the electrolyte solution react with the surface of the electrode lead wire member due to permeation of the electrolyte solution to generate hydrofluoric acid. There is a concern that the electrode lead wire member is corroded, and as a result, the adhesive force between the electrode lead wire member and the sealant layer is reduced. Therefore, it is preferable that a thin film coating layer made of a resin containing a hydroxyl group or a copolymer resin thereof is laminated on at least the surface on the inner layer side of the electrode lead wire member. Moreover, it is necessary to laminate
- the chromate treatment is used in the prior art, but this treatment is performed in comparison with the electrode lead wire member made of aluminum. It is also known that nickel-plated electrode lead members are less effective. However, in the electrode lead wire member according to the present invention, it has been found that the electrode lead wire member made of copper / nickel plating also has an electrolyte resistance effect. Therefore, there is a possibility that the corrosion prevention mechanism is different between the film formed by the conventional chromate treatment and the corrosion-resistant thin film coating layer according to the present invention. As shown in FIG. 5, the sealant layer 23 may be laminated so as to straddle both the positive electrode and the negative electrode.
- the electrode lead wire member in which the positive electrode and the negative electrode are integrated can be obtained.
- the corrosion prevention effect of the thin film coating layer 22 is obtained with respect to various metal plates such as an aluminum plate and a nickel plated copper plate, it is preferable to provide the thin film coating layer 22 in both the positive electrode and negative electrode lead-out portions 21.
- the resin containing a hydroxyl group or a copolymer resin thereof is a resin obtained by saponifying a polymer of a vinyl ester monomer or a copolymer thereof.
- the vinyl ester monomers include fatty acid vinyl esters such as vinyl formate, vinyl acetate, and vinyl butyrate, and aromatic vinyl esters such as vinyl benzoate.
- examples of other monomers to be copolymerized include ethylene, propylene, ⁇ -olefins, unsaturated acids such as acrylic acid, methacrylic acid, and maleic anhydride, and vinyl halides such as vinyl chloride and vinylidene chloride.
- a metal fluoride or a derivative thereof is a substance containing F 2 - ions that form a passive aluminum fluoride, such as chromium fluoride, iron fluoride, zirconium fluoride, titanium fluoride, hafnium fluoride, zircon fluoride.
- the thin film coating layer 22 on the surface layer surface of the lead-out portion 21 of the electrode lead wire member, for example, an amorphous polymer having a skeleton of polyvinyl alcohol containing a hydroxyl group (manufactured by Nippon Synthetic Chemical Co., Ltd., trade name) : G polymer resin) in an amount of 0.01 to 1 wt% and chromium (III) fluoride in an amount of 0.02 to 3 wt% so that the thickness after drying is about 0.01 to 1 ⁇ m. After coating, it is further dried in an oven, baked and bonded and crosslinked. By this treatment, the thin film coating layer 22 can be formed.
- the pressure resistance strength of the thin film coating layer 22 is high, and therefore, a polypropylene resin layer or a polyethylene resin which is the sealant layer 13 of the laminate film laminate 10. Even if the thickness of the layer is reduced, the pressure strength can be maintained. For this reason, the penetration of moisture from the edge portion (side edge portion) of the electrode lead wire member into the lithium ion battery is reduced, and the deterioration of the electrolyte solution of the lithium ion battery with time is reduced. Can do.
- the thin film coating layer 22 made of the contained resin or a copolymer resin thereof has a low free volume and a high gas barrier property, so that hydrofluoric acid does not diffuse outside along the sealant layer 13.
- the passivation film formed on the surface of the aluminum plate prevents corrosion of the electrode lead wire member. As a result, the interlayer adhesive strength between the electrode lead wire member 18 and the sealant layer 13 is maintained, and the high pressure strength is maintained, so that problems such as battery leakage do not occur.
- the thickness of the sealant layer 23 that is thermally bonded to the electrode lead wire member in advance is preferably 50 to 300 ⁇ m, and most preferably 30 to 150 ⁇ m in consideration of waterproofness.
- the thickness of the lead-out portion 21 of the electrode lead wire member 18 is 200 ⁇ m or more, a through hole may be formed at the edge of the electrode lead wire member, and the electrolyte solution may not be sealed. In such a case, it is possible to reduce the thickness of the sealant layer 23 to be thermally bonded in advance by crushing the edge of the electrode lead wire member.
- the thickness of the thin film coating layer 22 made of a resin containing a hydroxyl group or a copolymer resin thereof is preferably 0.01 to 1 ⁇ m, more preferably 0.1 to 0.5 ⁇ m. If it exists, the performance of moisture resistance and adhesive strength will increase.
- the thin film coating layer 22 is formed on a necessary portion of the electrode lead member by printing.
- a printing method a known printing method such as an ink jet method, a dispenser method, or a spray coating method can be used.
- the printing method that can be used in the present invention is arbitrary, but since it is necessary to print not only the front and back surface layers of the electrode lead wire member but also the edge portion seen in the cross section of the electrode lead wire member, the ink jet method and the dispenser method can be used. good.
- the dispenser method when an experiment was performed using a coating head capable of printing with a width as thin as about 10 mm, it was found that this was the most suitable method.
- the sealant layer 23 that is thermally bonded to the electrode lead wire member in advance is preferably a resin film of the same resin type as the sealant layer 13 of the laminate film laminate 10.
- the sealant layer of the laminate film laminate is a commonly used polyethylene film, it may be a maleic anhydride-modified polyethylene film or a single layer of a polyethylene film modified with glycidyl methacrylate or the like.
- a multilayer film of these resin films and a resin film made of a polyethylene film and a copolymer thereof may be used.
- the sealant layer of the laminate film laminate is a polypropylene film
- it may be a single layer film formed from a polymer alloy of polyethylene modified with glycidyl methacrylate or the like and a random copolymer polypropylene, or this single layer film. It may be a multilayer film in which a polypropylene film is laminated.
- non-aqueous battery in which the present invention is used examples include those using an organic electrolyte in an electrolytic solution such as a lithium ion battery or an electric double layer capacitor which is a secondary battery.
- organic electrolyte examples include carbonate esters such as propylene carbonate (PC), diethyl carbonate (DEC), and ethylene carbonate as a medium are common, but are not particularly limited thereto.
- (Measuring method) -Measuring method of adhesive strength between lead-out part of electrode lead wire member and sealant layer: It was measured by a measuring method defined in JIS C6471 "Testing method for copper-clad laminate for flexible printed wiring board”. Measurement method of electrolyte strength retention: Using a laminate for battery exterior, a 50 ⁇ 50 mm (heat seal width is 5 mm) four-sided bag was formed, and 1 mol / liter of LiPF 6 was added therein. 0.5 wt% of pure water was added to the PC / DEC electrolyte, and 2 cc of it was weighed, filled and packaged.
- a thin film coating layer is printed on a part of the electrode lead wire member by a dispenser method, and an electrode lead wire member in which a sealant layer is laminated by heat sealing is put on the thin film coating layer. After storing in an oven at 60 ° C. for 100 hours, the interlayer adhesive strength (k2) between the electrode lead wire member and the sealant layer was measured.
- Example 1 As an electrode lead wire member for a lithium battery, an aluminum piece obtained by cutting an aluminum plate having a thickness of 200 ⁇ m into a size of 50 mm ⁇ 60 mm was used. 1 wt% of an amorphous polymer (manufactured by Nippon Synthetic Chemical Co., Ltd., trade name: G polymer resin) having a skeleton of polyvinyl alcohol containing a hydroxyl group on the surface of the aluminum piece that has been degreased and cleaned, and chromium fluoride (III) Using an aqueous solution in which 2 wt% is dissolved, 0.5 ⁇ m thickness is applied to both sides with a 10 mm-width dispenser, a thin film coating layer is laminated, and the resin is baked by heating in an oven at 200 ° C.
- an amorphous polymer manufactured by Nippon Synthetic Chemical Co., Ltd., trade name: G polymer resin
- the electrode lead wire member of Example 1 was obtained. At this time, it was confirmed that the thin film coating layer was applied not only to the front and back surface layers of the electrode lead wire member of Example 1, but also to both end faces of the electrode lead wire member. Furthermore, on the thin film coating layer of the electrode lead wire member of Example 1, a single layer film of epoxy group-modified polyethylene film (manufactured by Sumitomo Chemical Co., Ltd., trade name: Bond First Resin, 100 ⁇ m with a film forming machine) The film formed into a thickness was used on both sides by heat sealing under conditions of 200 ° C. ⁇ 1 second ⁇ 0.2 MPa, and stored in a hot air oven at 50 ° C. for 48 hours.
- epoxy group-modified polyethylene film manufactured by Sumitomo Chemical Co., Ltd., trade name: Bond First Resin, 100 ⁇ m with a film forming machine
- an aluminum laminate film having a thickness of 118 ⁇ m composed of nylon film 25 ⁇ m / urethane adhesive 3 ⁇ m / aluminum foil (thickness 40 ⁇ m) / maleic anhydride-modified polyethylene film (thickness 50 ⁇ m) was heat-sealed.
- a part of the battery storage container 1 was produced.
- a test piece for measuring the adhesive strength was collected from a part of the battery storage container of Example 1, and the adhesive strength between the laminate film laminate and the electrode lead wire member was measured. The result showed an adhesive strength of 56 N / inch.
- Example 2 Polyvinyl alcohol containing 1 to 5 ⁇ m of nickel sulfamate plating on the surface of a 200 ⁇ m thick copper plate (dimensions 50 mm ⁇ 60 mm) as an electrode lead wire member for a lithium battery, and a hydroxyl group in a part thereof A 0.5 ⁇ m thickness of an amorphous polymer (made by Nippon Synthetic Chemical Co., Ltd., trade name: G polymer resin) having a skeleton of 1 wt% and 3 wt% of chromium (III) fluoride is dissolved. Then, a thin film coating layer was laminated, and the resin was further baked by heat drying in an oven at 200 ° C.
- an amorphous polymer made by Nippon Synthetic Chemical Co., Ltd., trade name: G polymer resin
- Example 3 Polyvinyl alcohol containing 1 to 5 ⁇ m of nickel sulfamate plating on the surface of a 200 ⁇ m thick copper plate (dimensions 50 mm ⁇ 60 mm) as an electrode lead wire member for a lithium battery, and a hydroxyl group in a part thereof A 0.5 ⁇ m thickness of an amorphous polymer (made by Nippon Synthetic Chemical Co., Ltd., trade name: G polymer resin) having a skeleton of 1 wt% and 3 wt% of chromium (III) fluoride is dissolved. Then, a thin film coating layer was laminated, and the resin was further baked by heat drying in an oven at 200 ° C.
- an amorphous polymer made by Nippon Synthetic Chemical Co., Ltd., trade name: G polymer resin
- two layers of epoxy group-modified polypropylene film (product name / manufactured by Mitsui Chemicals, Admer resin, maleic anhydride modified polypropylene resin and hydroxyl group-containing epoxy compound (product name / Mitsubishi Chemical Epicoat 1001) is blended with a 1.5 wt% blend, and a film is used in which a polypropylene resin in which an epoxy group has been introduced by reacting with a maleic anhydride functional group of the polypropylene resin is formed to a thickness of 100 ⁇ m using a film film forming machine. ) was heat-bonded on both sides under heat seal conditions of 200 ° C.
- Example 1 A thin film coating layer is formed on an aluminum plate in the same manner as in Example 1, and a single layer of maleic anhydride-modified polyethylene film (product name: Mitsui Chemicals Admer resin is formed as a single layer on the thin film coating layer of the electrode lead wire member.
- the film was used to form a film having a thickness of 100 ⁇ m using a membrane machine), and both sides were thermally bonded by heat sealing at 200 ° C. ⁇ 1 second ⁇ 0.2 MPa, and stored in a hot air oven at 50 ° C. for 48 hours.
- a portion of the electrode lead wire member and battery housing container of Comparative Example 1 was obtained in the same manner as in Example 1, and the adhesive strength between the aluminum laminate film and the electrode lead wire member was measured. It showed low adhesive strength.
- a surface of a copper plate piece (dimension 50 mm ⁇ 60 mm) having a thickness of 200 ⁇ m is subjected to nickel sulfamate plating of about 2 to 5 ⁇ m, and a part thereof is a polyvinyl alcohol skeleton containing a hydroxyl group
- a non-crystalline polymer made by Nippon Synthetic Chemical Co., Ltd., trade name: G polymer resin
- G polymer resin having a thickness of 0.5 ⁇ m was applied using a paint in which 1 wt% and chromium (III) fluoride were mixed at 2 wt%, After laminating a thin film coating layer, heat drying in a 200 ° C oven, and then heat-bonding on both sides with a heat seal of 200 ° C x 1 second x 0.2MPa and storing in a hot air oven at 50 ° C for 48 hours did.
- an amorphous polymer having a polyvinyl alcohol skeleton containing a hydroxyl group (manufactured by Nippon Synthetic Chemical Co., Ltd., trade name: G polymer resin) is 1 wt%, and chromium (III) fluoride is 2 wt%.
- G polymer resin chromium (III) fluoride
- Using a mixed paint apply it to the electrode lead wire member, laminate a thin film coating layer on it, and heat-bond the polyolefin film with epoxy group on both sides by heat sealing at 200 ° C ⁇ 1 second ⁇ 0.2 MPa And since it stored for 48 hours in a 50 degreeC hot-air oven, the adhesive strength of an electrode lead wire member and a sealant layer became 50 N / inch or more.
- the adhesive strength is 10 N / inch or less, and the adhesive strength is insufficient. Further, only the electrode lead wire member to which the sealant layer was thermally bonded was also resistant to the electrolyte solution of the lithium battery, and the adhesive strength was high.
- SYMBOLS 10 Laminate for battery exterior, 11 ... Base resin film, 12 ... Aluminum foil, 13 ... Sealant layer, 15, 16 ... Adhesive layer, 17 ... Lithium ion battery, 18 ... Electrode lead wire member, 19 ... Side edge 20, battery outer container, 21, lead-out part, 22 thin film coating layer, 23 sealant layer, 30 battery mounting container, 35 battery storage container.
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- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
ところで、リチウムイオン電池の電解液は水分や光に弱いという性質を有している。そのため、リチウムイオン電池用の外装材料には、ポリアミドやポリエステルからなる基材層とアルミニウム箔とが積層された、防水性や遮光性に優れた電池外装用積層体が使用されている。
また、リチウムイオン電池の内部に水分が侵入した場合、電解液が水分で分解して、強酸が発生する。この場合、電池外装用の積層体の内側から発生した強酸が浸透し、その結果としてアルミ箔が強酸で腐食して劣化する可能性がある。その結果、電解液の液漏れが発生し、電池の性能が低下するだけでなく、リチウムイオン電池が発火する可能性がある。
また、ラミネートフィルム積層体と電極部材との封止をする為に、その電極部材の一部に、ラミネートフィルム積層体のシーラントと同一の樹脂種類の樹脂フィルムを熱接着させている。その際には、金属との接着性を有する樹脂フィルムである、例えば、アイオノマーや、エチレンとアクリル酸の共重合樹脂(EAA)、無水マレイン酸グラフト共重合のポリオレフィン樹脂などの樹脂フィルムを使用しているが、十分な接着力とする為には、高温度で長時間に渡り加熱することが必要であり、生産性が低い。
なお、N/inchは、N/25.4mmに相当する。
また、電極リード線部材の、断面で見た両端部が押し潰されて、断面中央部よりも厚みが薄くされていると、電極リード線部材とラミネートフィルム積層体との密着が良くなり空隙部が少なくなり、電解液の浸入が低減される。
図1に示すように、本発明の電極リード線部材18及びリチウムイオン電池17は、電池外装用積層体10を折り重ねて作成された電池用外装容器20に内包されている。
さらに、電池外装用容器20の三方の側縁部19は、ヒートシールして袋状に製袋される。電極リード線部材18は、図1の様に電池用外装容器20から引き出されている。なお、本発明に係わる電極リード線部材18を用いて製造したリチウムイオン電池の電池用収納容器における収納方法は、図3A及びBに示した。
図4A及びBに示すように、電極リード線部材18は、アルミニウム製の導出部21を備え、該導出部21の表面上に、フッ化金属又はその誘導体と水酸基を含有する樹脂又はその共重合樹脂とからなる薄膜コーティング層22と、シーラント層23とが順に積層されている。
薄膜コーティング層22の形成には、クロメート処理が望ましく、その中でもフッ化金属又はその誘導体からなり、水酸基を含有する樹脂又はその共重合樹脂を主成分とする薄膜コーティング層を架橋させ、且つ、アルミニウムの表面を不動態化する物質が含有される液による処理が望ましい。但し、処理液にフッ化金属又はその誘導体が含まれていなくても、コーティング層の耐食性は向上する。薄膜コーティング層22は、前記導出部21の表面に印刷によりパターン状に形成されている。前記導出部21の表面に形成されている薄膜コーティング層22は、熱処理により、架橋または非晶化することにより耐水化されている。
本発明においては、シーラント層23が単層の場合は、その全体が熱接着性ポリオレフィン樹脂を含有する。シーラント層23が多層の場合は、少なくとも導出部21または薄膜コーティング層22に接する層が、熱接着性ポリオレフィン樹脂を含有していればよく、さらに他の層にも熱接着性ポリオレフィン樹脂を含有してもよい。シーラント層23が多層の場合は、導出部21または薄膜コーティング層22に接する層以外は、通常のポリエチレンやポリプロピレン等のエポキシ基を有しないポリオレフィン樹脂や、酸変性ポリオレフィン樹脂など、他の樹脂から構成されても構わない。また、シーラント層23のうちの熱接着性ポリオレフィン樹脂を含有する層は、エポキシ基を有する熱接着性ポリオレフィン樹脂のみから構成されてもよく、あるいはこれと他の樹脂との混合物、コンパウンドやポリマーアロイ等とすることもできる。
シーラント層を多層にする方法は、押出ラミネート工法によるサンドラミネート方法を用いても良く、シーラント層をフィルム化する時に多層のフィルムにして積層しても良い。
アルミ製の電極リード線部材に対する電解液による腐食劣化を防止する対策としては、従来技術ではクロメート処理が用いられているが、この処理は、アルミ製の電極リード線部材と比較して、銅/ニッケルメッキ製の電極リード線部材においては、効果が少ないことも知られている。しかし、本発明に係わる電極リード線部材においては、銅/ニッケルメッキ製の電極リード線部材にも、耐電解液性の効果があることが判明した。よって、従来のクロメート処理により形成された被膜と、本発明に係わる耐食性の薄膜コーティング層とは、腐食防止のメカニズムが異なる可能性がある。
シーラント層23を、図5に示すように、正極と負極の双方にまたがるように積層しても良い。これにより、正極と負極とが一体化した電極リード線部材を得ることができる。また、薄膜コーティング層22の腐食防止効果は、アルミ板やニッケルメッキ銅板など各種金属板に対して得られるので、薄膜コーティング層22を正極と負極の双方の導出部21に設けることが好ましい。
また、薄膜コーティング層22にはクロメート処理液が利用され、特に性能が良いのは、フッ化金属又はその誘導体からなり、水酸基を含有する樹脂又はその共重合樹脂からなる薄膜コーティング層22を架橋させ、且つ、アルミ箔の表面を不動態化する物質を含有することが好ましい。フッ化金属又はその誘導体は、不動態であるアルミニウムのフッ化物を形成するF-イオンを含む物質であり、例えばフッ化クロム、フッ化鉄、フッ化ジルコニウム、フッ化チタン、フッ化ハフニウム、ジルコンフッ化水素酸およびそれらの塩、チタンフッ化水素酸およびそれらの塩、等のフッ化物が挙げられる。
この電極リード線部材の導出部21の表層面に、薄膜コーティング層22を形成するには、例えば、水酸基を含有するポリビニルアルコールの骨格を持つ非結晶ポリマー(日本合成化学(株)製、商品名:Gポリマー樹脂)を0.01~1wt%、及びフッ化クロム(III)を0.02~3wt%溶解した水溶液を用いて、乾燥後の厚みが0.01~1μm程度のとなるように塗布した後、更にオーブンにて加熱乾燥及び焼き付け接着及び架橋化を行なう。この処理により、薄膜コーティング層22を形成することができる。
更に、微量の水分が電池内部に浸入し、電解液と水分とが反応して電解液が分解することによりフッ酸が発生した場合にも、電極リード線部材の表層面に積層された水酸基を含有する樹脂又はその共重合樹脂からなる薄膜コーティング層22は、フリーボリュームが少なくガスバリヤ性が高いため、フッ酸がシーラント層13に沿って外部へ拡散することはない。また、微量のフッ酸が電極リード線部材18の導出部21であるアルミ板の表面に接触しても、アルミ板の表面に形成されている不動態化膜により電極リード線部材の腐食が防止されて、電極リード線部材18とシーラント層13との層間接着強度が保たれ、高い耐圧強度保持が維持されるため、電池の液漏れ等の問題も発生しない。
水酸基を含有する樹脂又はその共重合樹脂からなる薄膜コーティング層22の厚みは、0.01~1μmが望ましく、更に望ましくは0.1~0.5μmであり、このような薄膜コーティング層の厚みであると、防湿性や接着強度の性能が増加する。
事前に電極リード線部材に熱接着しておくシーラント層23は、ラミネートフィルム積層体10のシーラント層13と同一の樹脂種類の樹脂フィルムを用いるのが好ましい。例えば、ラミネートフィルム積層体のシーラント層が、一般的に使用されているポリエチレンフィルムの場合には、無水マレイン酸変性ポリエチレンフィルムもしくは、グリシジルメタクリレート等で変性されたポリエチレンフィルムの単層であってもよく、さらに、これらの樹脂フィルムと、ポリエチレンフィルム及びその共重合体からなる樹脂フィルムとの多層フィルムでもよい。また、ラミネートフィルム積層体のシーラント層がポリプロピレンフィルムの場合には、グリシジルメタクリレート等で変性されたポリエチレンとランダムコーポリマーポリプロピレンのポリマーアロイで製膜した単層フィルムであるか、あるいは、この単層フィルムにポリプロピレンフィルムを積層した多層フィルムであっても良い。
・電極リード線部材の導出部とシーラント層との接着強度の測定方法:JIS C6471「フレキシブルプリント配線板用銅張積層板試験方法」に規定された測定方法により測定した。
・電解液強度保持率の測定方法:電池外装用積層体を用いて、50×50mm(ヒートシール幅が5mm)の4方袋に製袋して、その中にLiPF6を1mol/リットル添加したPC/DEC電解液に純水を0.5wt%添加して、それを2cc計量し、充填して包装した。この4方袋の中に、電極リード線部材の一部に薄膜コーティング層をディスペンサー方式にて印刷し、その薄膜コーティング層の上にヒートシールによりシーラント層が積層された電極リード線部材を入れて、60℃のオーブンに100時間保管後、電極リード線部材とシーラント層との層間接着強度(k2)を測定した。
ここで、事前に測定しておいた、電解液に暴露する前の電極リード線部材とシーラント層であるポリエチレン(PE)フィルムとの層間接着強度(k1)と、電解液に暴露した後の層間接着強度(k2)との比率を電解液強度保持率K=(k2/k1)×100(%)とした。
(測定装置)
・接着強度の測定装置には、島津製作所製、型式:AUTOGRAPH AGS‐100A引張試験装置を用いた。
リチウム電池用の電極リード線部材として、厚みが200μmのアルミ板を50mm×60mmの寸法に切断したアルミ片を用いた。脱脂洗浄したこのアルミ片の表面に、水酸基を含有するポリビニルアルコールの骨格を持つ非結晶ポリマー(日本合成化学(株)製、商品名:Gポリマー樹脂)を1wt%、及びフッ化クロム(III)を2wt%溶かした水溶液を用いて0.5μmの厚みで10mm幅型ディスペンサーにて両面に塗布し、薄膜コーティング層を積層し、更に200℃のオーブンにて加熱乾燥し樹脂を焼き付けるのと同時に架橋化して、実施例1の電極リード線部材を得た。この時に、実施例1の電極リード線部材の裏表の表層だけでなく、電極リード線部材の両端面にも薄膜コーティング層が塗布されていることを確認した。
さらに、実施例1の電極リード線部材の薄膜コーティング層の上に、エポキシ基変性ポリエチレンフィルムの単層フィルム(住友化学(株)製、商品名:ボンドファースト樹脂を、フィルム製膜機で100μmの厚みに製膜したフィルムを使用)を200℃×1秒×0.2MPa条件でヒートシールにて両面接合し、50℃の熱風オーブンに48時間保管した。次に、その上にナイロンフィルム25μm/ウレタン接着剤3μm/アルミ箔(厚み40μm)/無水マレイン酸変性ポリエチレンフィルム(厚み50μm)からなる、厚みが118μmのアルミラミネートフィルムをヒートシールして、実施例1の電池収納容器の一部分を作製した。
この実施例1の電池収納容器の一部分から接着強度測定用の試験片を採取し、ラミネートフィルム積層体と電極リード線部材との接着強度を測定したところ、56N/inchの接着強度を示した。
また、実施例1の電池収納容器の一部分について、電解液強度保持率Kを測定した結果は、K=89%であった。
リチウム電池用の電極リード線部材として、厚みが200μmの銅板片(寸法50mm×60mm)の表面にニッケルスルファミン酸メッキを1~5μmの厚みでメッキして、その一部に水酸基を含有するポリビニルアルコールの骨格を持つ非結晶ポリマー(日本合成化学(株)製、商品名:Gポリマー樹脂)を1wt%、及びフッ化クロム(III)を3wt%溶かした水溶液を用いて0.5μmの厚みで塗布し、薄膜コーティング層を積層し、更に200℃のオーブンにて加熱乾燥にて樹脂を焼き付けた。
さらに、その電極リード線部材の薄膜コーティング層の上に、2層のエポキシ基変性ポリエチレンフィルム(品名/住友化学製ボンドファーストと、品名/ランダムコーポリマーポリプロピレン樹脂とを、6:4のブレンド比率で混練してポリマーアロイ化した後、フィルム製膜機にて、100μmに製膜したフィルムを使用)を200℃×1秒×0.2MPaのヒートシール条件により両面熱接着して、50℃の熱風オーブンに48時間保管した。実施例1と同様にして実施例2の電池収納容器の一部分を得て、ラミネートフィルム積層体と電極リード線部材との接着強度を測定したところ、54N/inchの接着強度を示した。
また、実施例2の電池収納容器の一部分について、電解液強度保持率Kを測定した結果は、K=88%であった。
リチウム電池用の電極リード線部材として、厚みが200μmの銅板片(寸法50mm×60mm)の表面にニッケルスルファミン酸メッキを1~5μmの厚みでメッキして、その一部に水酸基を含有するポリビニルアルコールの骨格を持つ非結晶ポリマー(日本合成化学(株)製、商品名:Gポリマー樹脂)を1wt%、及びフッ化クロム(III)を3wt%溶かした水溶液を用いて0.5μmの厚みで塗布し、薄膜コーティング層を積層し、更に200℃のオーブンにて加熱乾燥にて樹脂を焼き付けた。
さらに、その電極リード線部材の薄膜コーティング層の上に、2層のエポキシ基変性ポリプロピレンフィルム(品名/三井化学(株)製、アドマー樹脂、無水マレイン酸変性ポリプロピレン樹脂に水酸基含有エポキシ化合物(品名/三菱化学 エピコート1001)を1.5wt%ブレンドコンパウンドして、ポリプロピレン樹脂の無水マレイン酸官能基に反応させてエポキシ基を導入したポリプロピレン樹脂をフィルム製膜機にて、100μmに製膜したフィルムを使用)を200℃×1秒×0.2MPaのヒートシール条件により両面熱接着して、50℃の熱風オーブンに48時間保管した。実施例1と同様にして実施例3の電池収納容器の一部分を得て、ラミネートフィルム積層体と電極リード線部材との接着強度を測定したところ、65N/inchの接着強度を示した。
また、実施例3の電池収納容器の一部分について、電解液強度保持率Kを測定した結果は、K=105%であった。
アルミ板に薄膜コーティング層を実施例1と同様にして、その電極リード線部材の薄膜コーティング層の上に、無水マレイン酸変性ポリエチレンフィルム単層(品名/三井化学製アドマー樹脂を単層でフィルム製膜機にて、100μmに製膜したフィルムを使用)を200℃×1秒×0.2MPaのヒートシールにより両面熱接着して、50℃の熱風オーブンに48時間保管した。これを実施例1と同様な方法で、比較例1の電極リード線部材及び電池収納容器の一部分を得て、アルミラミネートフィルムと電極リード線部材との接着強度を測定したところ、7N/inchと低い接着強度を示した。また、比較例1の電池収納容器の一部分について、電解液強度保持率Kを測定した結果は、K=50%以下であった。
リチウム電池用の電極リード線部材として、厚みが200μmの銅板片(寸法50mm×60mm)の表面に2~5μm程度のスルファミン酸ニッケルメッキを施し、その一部に、水酸基を含有するポリビニルアルコールの骨格を持つ非結晶ポリマー(日本合成化学(株)製、商品名:Gポリマー樹脂)を1wt%、及びフッ化クロム(III)を2wt%混ぜた塗料を用いて0.5μmの厚みで塗布し、薄膜コーティング層を積層し、その後に200℃のオーブンで加熱乾燥の処理をした後、200℃×1秒×0.2MPaのヒートシールにより両面熱接着して、50℃の熱風オーブンに48時間保管した。これを実施例1と同様にして比較例2の電極リード線部材及び電池収納容器の一部分を得た。
比較例2の電極リード線部材及び電池収納容器の一部分について、ラミネートフィルム積層体と電極リード線部材との接着強度を測定したところ、6N/inchの接着強度を示した。また、比較例2の電池収納容器の一部分について、電解液強度保持率Kを測定した結果は、K=30%以下であった。また、電解液強度保持率の測定後には、電解液への暴露のため、電極リード線部材とシーラント層とが剥離現象(デラミ)を起した。
以上の結果を表1に示す。
Claims (6)
- アルミ箔と樹脂フィルムとのラミネートフィルム積層体を外装材に用いた非水系電池用収納容器から引き出される電極リード線部材であって、
金属製の導出部を備え、該導出部の上には、フッ化金属又はその誘導体と水酸基を含有する樹脂又はその共重合樹脂とからなる薄膜コーティング層と、シーラント層とが順に積層され、
前記シーラント層が、多層または単層のフィルムであり、前記導出部の表面上に熱接着され、且つ、少なくとも前記シーラント層の前記導出部との界面側の部分に、エポキシ官能基を有する熱接着性ポリオレフィン樹脂を含有する電極リード線部材。 - 前記フッ化金属又はその誘導体は、前記水酸基を含有する樹脂又はその共重合樹脂を架橋させ、且つ、アルミニウムの表面を不動態化する物質である請求項1に記載の電極リード線部材。
- 前記薄膜コーティング層が、前記導出部の表面に印刷によりパターン状に形成される請求項1または請求項2に記載の電極リード線部材。
- 前記導出部の表面に形成されている薄膜コーティング層が、熱処理により、架橋または非晶化することにより耐水化される請求項1または2に記載の電極リード線部材。
- 前記薄膜コーティング層と前記シーラント層とが、熱接着で積層後、少なくとも両者の接着強度が10N/inch以上になるまで、熱処理もしくは室温保管して形成される請求項1または2に記載の電極リード線部材。
- 前記シーラント層の厚みが、50μm以上300μm以下であり、且つ、前記薄膜コーティング層の厚みが、0.01~1.0μmであり、前記薄膜コーティング層とその上に積層された前記シーラント層との層間剥離強度が、JIS C6471に規定された引き剥がし測定方法Aにより測定し、10N/inch以上である請求項1または2に記載の電極リード線部材。
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10985359B2 (en) * | 2018-02-05 | 2021-04-20 | Fujimori Kogyo Co., Ltd. | Electrode lead wire member and battery |
CN114725629A (zh) * | 2020-12-22 | 2022-07-08 | 双叶电子工业株式会社 | 接片引线及非水电解质器件 |
KR20220100478A (ko) * | 2021-01-08 | 2022-07-15 | 동원시스템즈 주식회사 | 2차 전지용 전극탭 부착체 제조 방법 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007095654A (ja) * | 2006-03-23 | 2007-04-12 | Dainippon Printing Co Ltd | リチウムイオン電池 |
JP2010086831A (ja) * | 2008-09-30 | 2010-04-15 | Dainippon Printing Co Ltd | 電気化学セル用包装材料 |
WO2012063764A1 (ja) * | 2010-11-11 | 2012-05-18 | 藤森工業株式会社 | 封止フィルムの製造方法および封止フィルム |
JP2012199248A (ja) * | 2012-06-18 | 2012-10-18 | Nec Corp | フィルム外装電気デバイスの製造方法、およびフィルム外装電気デバイス |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09288996A (ja) * | 1996-04-23 | 1997-11-04 | Sumitomo Electric Ind Ltd | 非水電解質電池 |
JP4558854B2 (ja) * | 1999-01-19 | 2010-10-06 | 昭和電工パッケージング株式会社 | 電池用端子、そのヒートシール方法及び二次電池 |
JP3496090B2 (ja) * | 1999-06-14 | 2004-02-09 | 日本製箔株式会社 | 二次電池用外装材料及びその製造方法 |
JP3970567B2 (ja) * | 2001-09-17 | 2007-09-05 | アルプス電気株式会社 | ウェット処理装置 |
JP4696457B2 (ja) * | 2004-03-18 | 2011-06-08 | 株式会社Gsユアサ | 電池及び電池の製造方法 |
CN101032043B (zh) * | 2004-09-30 | 2011-06-08 | 住友电气工业株式会社 | 非水电解质电池用引线和非水电解质电池 |
JP5320405B2 (ja) * | 2008-10-30 | 2013-10-23 | 株式会社フジクラ | 光電変換装置 |
JP2011181300A (ja) * | 2010-03-01 | 2011-09-15 | Sumitomo Electric Ind Ltd | 非水電解質蓄電デバイス用のリード部材及びその製造方法 |
JP5562176B2 (ja) * | 2010-08-24 | 2014-07-30 | 藤森工業株式会社 | 非水系電池用の電極リード線部材 |
-
2012
- 2012-12-10 WO PCT/JP2012/081979 patent/WO2014091544A1/ja active Application Filing
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007095654A (ja) * | 2006-03-23 | 2007-04-12 | Dainippon Printing Co Ltd | リチウムイオン電池 |
JP2010086831A (ja) * | 2008-09-30 | 2010-04-15 | Dainippon Printing Co Ltd | 電気化学セル用包装材料 |
WO2012063764A1 (ja) * | 2010-11-11 | 2012-05-18 | 藤森工業株式会社 | 封止フィルムの製造方法および封止フィルム |
JP2012199248A (ja) * | 2012-06-18 | 2012-10-18 | Nec Corp | フィルム外装電気デバイスの製造方法、およびフィルム外装電気デバイス |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10985359B2 (en) * | 2018-02-05 | 2021-04-20 | Fujimori Kogyo Co., Ltd. | Electrode lead wire member and battery |
US11710881B2 (en) | 2018-02-05 | 2023-07-25 | Fujimori Kogyo Co., Ltd. | Electrode lead wire member and battery |
CN114725629A (zh) * | 2020-12-22 | 2022-07-08 | 双叶电子工业株式会社 | 接片引线及非水电解质器件 |
KR20220100478A (ko) * | 2021-01-08 | 2022-07-15 | 동원시스템즈 주식회사 | 2차 전지용 전극탭 부착체 제조 방법 |
KR102572385B1 (ko) * | 2021-01-08 | 2023-09-01 | 동원시스템즈 주식회사 | 2차 전지용 전극탭 부착체 제조 방법 |
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KR101657202B1 (ko) | 2016-09-19 |
KR20150095608A (ko) | 2015-08-21 |
JPWO2014091544A1 (ja) | 2017-01-05 |
CN104756277A (zh) | 2015-07-01 |
JP5856693B2 (ja) | 2016-02-10 |
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