CN107204406A - Electrical storage device housing material and electrical storage device - Google Patents
Electrical storage device housing material and electrical storage device Download PDFInfo
- Publication number
- CN107204406A CN107204406A CN201710147482.7A CN201710147482A CN107204406A CN 107204406 A CN107204406 A CN 107204406A CN 201710147482 A CN201710147482 A CN 201710147482A CN 107204406 A CN107204406 A CN 107204406A
- Authority
- CN
- China
- Prior art keywords
- storage device
- electrical storage
- housing material
- layer
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 140
- 238000003860 storage Methods 0.000 title claims abstract description 108
- 239000010410 layer Substances 0.000 claims abstract description 101
- 229920006015 heat resistant resin Polymers 0.000 claims abstract description 33
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- 239000011888 foil Substances 0.000 claims abstract description 16
- 239000011229 interlayer Substances 0.000 claims abstract description 3
- 229920005989 resin Polymers 0.000 claims description 52
- 239000011347 resin Substances 0.000 claims description 52
- 238000007789 sealing Methods 0.000 claims description 29
- 150000001336 alkenes Chemical class 0.000 claims description 16
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 16
- 229920001971 elastomer Polymers 0.000 claims description 14
- 238000012856 packing Methods 0.000 claims description 14
- 239000000806 elastomer Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000005022 packaging material Substances 0.000 claims description 2
- 150000002632 lipids Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 28
- 239000000853 adhesive Substances 0.000 description 20
- 230000001070 adhesive effect Effects 0.000 description 20
- 239000000126 substance Substances 0.000 description 15
- -1 polybutylene terephthalate Polymers 0.000 description 14
- 239000005030 aluminium foil Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 229920002292 Nylon 6 Polymers 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- 238000007493 shaping process Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 238000011156 evaluation Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000003792 electrolyte Substances 0.000 description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- 239000012528 membrane Substances 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 238000001723 curing Methods 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- 238000012946 outsourcing Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000004677 Nylon Substances 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 6
- 229920001778 nylon Polymers 0.000 description 6
- 229920002635 polyurethane Polymers 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000004927 fusion Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000009863 impact test Methods 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000009820 dry lamination Methods 0.000 description 3
- 229920005674 ethylene-propylene random copolymer Polymers 0.000 description 3
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 3
- 238000009527 percussion Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 description 3
- 229920006267 polyester film Polymers 0.000 description 3
- 229920005604 random copolymer Polymers 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 2
- 229920001661 Chitosan Polymers 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000004411 aluminium 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
- 238000000137 annealing Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- BFGKITSFLPAWGI-UHFFFAOYSA-N chromium(3+) Chemical class [Cr+3] BFGKITSFLPAWGI-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000000113 differential scanning calorimetry Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920000554 ionomer Polymers 0.000 description 2
- 239000005001 laminate film Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000000088 plastic resin Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 229910013872 LiPF Inorganic materials 0.000 description 1
- 101150058243 Lipf gene Proteins 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 229920005676 ethylene-propylene block copolymer Polymers 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Natural products OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000007785 strong electrolyte Substances 0.000 description 1
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
-
- 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 of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery 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 of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/121—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 of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
- H01M50/126—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure comprising three or more layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/582—Tearability
- B32B2307/5825—Tear resistant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/10—Batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02E60/13—Energy storage using capacitors
Abstract
The present invention relates to electrical storage device housing material and electrical storage device.The composition of electrical storage device housing material (1) is comprising the heat-resistant resin film layer (2) as outer layer, the thermoplastic resin layer (3) as la m and the metal foil layer (4) in two interlayer setting, the failure energy of electrical storage device housing material (1) is more than 1.5J, and the failure energy of the heat-resistant resin film (2) is more than 1.3J.Pass through above-mentioned composition, using the teaching of the invention it is possible to provide a kind of electrical storage device housing material, even if housing material is designed as it is slim, when by being impacted from outside, be not easy to occur housing material fracture, rupture.
Description
Technical field
The present invention relates in the portable set such as smart mobile phone, tablet personal computer (tablet) (portable equipment)
The middle battery used and capacitor (condenser), hybrid vehicle, electric automobile, wind-power electricity generation, solar power generation,
The housing materials of the electrical storage devices such as the battery and capacitor that are used in the electric power storage purposes of night electricity and utilize the outer packing
Material carries out the electrical storage device of outer packing.
It should be noted that in following claims and specification, term " failure energy " is meant that, according to
JIS K7124-2-1999 (the impact test method part 2s that plastic sheeting and sheet material are carried out by free dart method：Instrument is hit
Wear method), in the environment of 23 DEG C of temperature, make quality 6.5kg, hemispherical (the radius 10mm hemisphere equivalent to diameter 20mm
Shape) percussion hammer dropped naturally from 30cm height under conditions of the failure energy W that is measured and tries to achieveF。
In addition, in following claims and specification, " failure energy of electrical storage device housing material " and
Any one of " failure energy of heat-resistant resin film ", which should be used, states " WF" (simple to record) is recorded, but in order to avoid two
Person's obscures so as to clearly distinguishing, it is convenient for the sake of, the failure energy of housing material " electrical storage device with " is recited as " WFT", will
" failure energy of heat-resistant resin film " is recited as " WFS”。
In addition, in this manual, term " aluminium " is used with the implication comprising aluminium and its alloy.
Background technology
In recent years, with slimming, the lightweight of the mobile electronic devices such as smart mobile phone, tablet personal computer terminal, as taking
It is loaded in lithium rechargeable battery, lighium polymer secondary battery, lithium-ion capacitance (the lithium ion of above-mentioned mobile electronic device
Capacitor), the housing material of the electrical storage device such as double layer capacitor, using by heat-resistant resin layer/adhesive phase/gold
Belong to the lamilate (laminate housing material) of layers of foil/adhesive phase/thermoplastic resin layer formation to replace conventional metal can (ginseng
See patent document 1).Using above-mentioned composition lamilate (housing material) to the power supply of electric automobile etc., electric power storage purposes it is big
The situation that type power supply, electric capacity etc. carry out outer packing also gradually increases.
Compared with metal can, the laminate housing material of above-mentioned composition has the advantages that light weight and exothermicity is good, but closes
In when by impact resistance when being impacted from outside, laminate housing material is poorer than metal can.
Therefore, in order to improve the impact resistance as described above for from outside impact, it is proposed that following
The housing material of composition.I.e., it is proposed that the secondary cell of following compositions, wherein, the positive pole part that is electrically connected with collector and
Anode member is laminated via illiquidity electrolyte, and rigidity is abutted on the periphery of the cell device containing cationic metal composition
Holding member, it is coated so as to sealing (referring to patent document 2) in its outer surface flexible synthetic resin film.
In addition, it is also proposed that positive pole and negative pole are enclosed to the outer packing of laminated film via barrier film electrode group obtained from laminated
In vivo, there is the laminated film outsourcing packed battery of guard block for the frame-shaped for protecting the electrode group around electrode group (referring to special
Sharp document 3).
Patent document 1：Japanese Unexamined Patent Publication 2007-161310 publications
Patent document 2：Japanese Unexamined Patent Publication 2000-195475 publications
Patent document 3：Japanese Unexamined Patent Publication 2005-259621 publications
The content of the invention
Problems to be solved by the invention
However, above-mentioned, there are the following problems in the prior art.For the secondary cell described in patent document 2, by
Then between cell device and flexible synthetic resin film (housing material), configure rigid holding member and be used as additional portion
Part, therefore can not fully meet slimming, light-weighted requirement.That is, there is infringement or reduce by being set to laminated film outer packing
Material and the problem of the light-weighted effect brought.
In addition, for the laminated film outsourcing packed battery described in patent document 3, similarly due to be electrode group with
Between laminated film external packing body, configure frame-shaped guard block as additional part, therefore can not fully meet slimming, gently
The requirement of quantization.That is, there is infringement or reduce asking by the light-weighted effect that is set to laminated film housing material and brings
Topic.
The present invention in view of background of related and make, even if its first purpose is housing material there is provided a kind of
Be designed as it is slim, when by be not easy to when being impacted from outside occur housing material be broken, rupture electrical storage device use
Housing material.
Even if in addition, it is a second object of the invention to provide it is a kind of housing material is designed as it is slim, when being arrived
From fracture, the rupture for during outside impact, being not easy to occur housing material, and can also be by optionally from thermal seal
Cohesional failure occurs for (heat-sealing portion) so as to the electrical storage device housing material for the rupture for being better protected from housing material.
The means used to solve the problem
In order to reach above-mentioned purpose, the present invention provides following strategy.
[1] a kind of electrical storage device housing material, it is comprising the heat-resistant resin film layer as outer layer, as interior
The thermoplastic resin layer of side layer and the electrical storage device housing material of the metal foil layer set in two interlayer, the storage
Electric installation housing material is characterised by,
The electrical storage device is more than 1.5J with the failure energy of housing material,
The failure energy of the heat-resistant resin film is more than 1.3J.
[2] the electrical storage device housing material as described in preceding paragraph 1, wherein, the la m is by the electrical storage device
The thermoplastic for being more than 0.50J with seal break-off energy of the housing material under the mutual heat-sealing engagement state of thermoplastic resin layer
Property resin bed is formed.
[3] the electrical storage device housing material as described in preceding paragraph 1 or 2, wherein, when by the electrical storage device outsourcing
The failure energy of package material is set to " WFT", by the electrical storage device housing material in the mutual heat sealing of thermoplastic resin layer
Seal break-off energy under conjunction state is set to " WP" when, (WFT/WP)>2.0。
[4] such as the electrical storage device housing material of any one of preceding paragraph 1~3 record, it is characterised in that the thermoplasticity
Resin bed comprises at least 3 layers of laminate structures, and 3 layers of laminate structures are laminated on the two sides in intermediate layer olefin-containing system resin
Coating, the intermediate layer includes the olefin-based resin containing elastomer components
There are the elastomer components to turn into the island structure on island in the intermediate layer.
[5] a kind of electrical storage device, it is characterised in that have
Electrical storage device main part, and
Electrical storage device housing material described in any one of preceding paragraph 1~4,
The electrical storage device main part carries out outer packing using the housing material.
Invention effect
[1] it is more than 1.5J and heat resistance tree due to being electrical storage device with the failure energy of housing material in invention
The failure energy of adipose membrane is more than 1.3J composition, therefore, even if housing material system is thin and carry out light-weight design (for example
Even if the thickness of housing material is designed as into 50 μm~70 μm slim), when by outer packing material when being impacted from outside
Fracture, the rupture of material are not easy to occur.Thus, even if (it is outsourcing of the apparatus main body portion using the present invention with electrical storage device
Package material carries out outer packing) electronic equipment etc. impacted because dropping, hitting etc., housing material is not easy to send out
Raw fracture, rupture, can suppress the short-circuit generation of electrical storage device.That is, the first purpose can be realized.
[2] in invention, la m is engaged by electrical storage device housing material in the mutual heat-sealing of thermoplastic resin layer
Seal break-off energy under state is formed for more than 0.50J thermoplastic resin layer, when electrical storage device is rushed by from outside
When hitting, the mutual heat cover of thermoplastic resin layer is easily peeled off because cohesion is peeled off, thus, it is possible to prevent housing material
Fracture, rupture, occur therefore, it is possible to further suppress the short-circuit of electrical storage device.That is, second purpose can be realized.
[3] in invention, due to being the presence of (WFT/WP)>The composition of 2.0 relation, so even from the strong of outside
In the case that impact is applied to electrical storage device, before reaching the fracture of housing material, rupturing, optionally from heat-sealing portion
(thermal seal) is peeling-off, cohesional failure, can be effective so as to effectively prevent fracture, the rupture of housing material
Prevent the mutual short-circuit generation of electrode of electrical storage device.
[4] in invention, due to being configured to, thermoplastic resin layer comprises at least 3 layers of laminate structures, and described 3 close knot layer by layer
Structure laminated coating for having an olefin-containing system resin on the two sides in the intermediate layer comprising the olefin-based resin containing elastomer components, and
Intermediate layer has the composition of island structure of the elastomer components as island, therefore, when electrical storage device is by from outside
During impact, the energy of the impact can be effectively absorbed by the intermediate layer with island structure, thus, when electrical storage device by
During to from outside impact, fracture, the rupture of housing material are more not susceptible to.
[5] there is provided a kind of electrical storage device in invention (electrical storage device), wherein, even if housing material is designed as thin
Type, when by being impacted from outside, is not easy to fracture, the rupture for occurring housing material, can suppress the generation of short circuit.
Brief description of the drawings
Fig. 1 is the profile for an embodiment for representing electrical storage device housing material of the present invention.
Fig. 2 is to represent that one of the electrical storage device constituted using electrical storage device of the present invention with housing material is implemented
The profile of mode.
Description of reference numerals
1 ... electrical storage device housing material
2 ... heat-resistant resin film layers (outer layer)
3 ... thermoplastic resin layers (la m)
4 ... metal foil layers
5 ... first adhesive phases
6 ... second adhesive phases
11 ... molded housings
19 ... electrical storage device main parts
20 ... electrical storage devices
Embodiment
The electrical storage device of the present invention is shown in Fig. 1 with an embodiment of housing material 1.The electrical storage device outer packing
Material 1 is used for lithium rechargeable battery housing purposes.That is, for above-mentioned electrical storage device with for housing material 1, for example,
The shaping such as deep drawing shaping, bulging method can be carried out so as to housing as secondary cell etc..
The electrical storage device is constituted with housing material 1 comprising following：It is viscous via first on a face of metal foil layer 4
Mixture layer 5 and heat-resistant resin film layer (outer layer) 2 is laminating and integrating, and on another face of the metal foil layer 4
Thermoplastic resin layer (la m) 3 is laminating and integrating via second adhesive phase 6.
Electrical storage device of the present invention is with the composition of housing material 1：The electrical storage device housing material it is broken
Bad energy WFTFor more than 1.5J, the failure energy W of the heat-resistant resin filmFSFor more than 1.3J.The electrical storage device of the present invention is used
Housing material 1 is due to being composition as described above, so even housing material system is thin so as to carry out light-weight design (example
Even if as the thickness of housing material is designed as into 50 μm~70 μm slim), when by being impacted from outside, it is not easy to
Occur fracture, the rupture of housing material.Thus, i.e., with electrical storage device, (it is that apparatus main body portion utilizes the present invention to box lunch
Housing material carries out outer packing) electronic equipment etc. when being impacted because dropping, hitting etc., be not easy to occur outside
Fracture, the rupture of packaging material, can suppress electrical storage device and occur short circuit.In the present invention, although the electrical storage device outsourcing
The failure energy W of package materialFTNeed for more than 1.5J, but the failure energy W of the electrical storage device housing materialFTGenerally
For below 2.5J.In addition, in the present invention, although the failure energy W of the heat-resistant resin filmFSNeed for more than 1.3J, but institute
State the failure energy W of heat-resistant resin filmFSUsually below 2.0J.It should be noted that " the destruction of heat-resistant resin film
Energy " is the failure energy determined in the state of before the heat-resistant resin film is closed layer by layer with other.
The la m 3 is preferably in the mutual heat sealing of thermoplastic resin layer by the electrical storage device housing material
Seal break-off energy W under conjunction statePFor the composition of more than 0.50J thermoplastic resin layer formation, in this case, work as electric power storage
When device from outside by being impacted, the mutual heat cover of thermoplastic resin layer is easily peeled off because cohesion is peeled off, thus
The rupture of housing material can be prevented, the short-circuit generation thus, it is possible to further suppress electrical storage device.The seal break-off
Energy WPPreferably more than 0.50J and below 1.3J.
In addition, electrical storage device of the present invention is preferably (W with housing material 1FT/WP)>2.0 composition, this feelings
Under condition, even if the intense impact from outside is applied to electrical storage device, before reaching the fracture of housing material, rupturing,
Also can be optionally from heat-sealing portion (thermal seal) peeling-off, cohesional failure, so as to effectively prevent housing material
Fracture, rupture, can effectively prevent the mutual short-circuit generation of electrode of electrical storage device.Wherein, electrical storage device of the invention is used
Housing material 1 is particularly preferably 4.0>(WFT/WP)>2.0 composition.
As the heat-resistant resin for constituting the heat-resistant resin film layer (outer layer) 2, it is used in and housing material is entered
The heat-resistant resin that heat-sealing temperature during row heat-sealing is not melted.As the heat-resistant resin, preferably use fusing point and compare structure
Into the heat-resistant resin of high more than 10 DEG C of the fusing point of the thermoplastic resin of thermoplastic resin layer 3, fusing point specific heat is particularly preferably used
The heat-resistant resin of high more than 20 DEG C of the fusing point of plastic resin.
As the heat-resistant resin layer (outer layer) 2, it is not particularly limited, the polyamide such as can enumerate nylon membrane
Film, polyester film, polyolefin film etc., preferably use their stretched film.Wherein, as the heat-resistant resin layer 2, particularly preferably
Use the biaxial stretching polyamide films such as biaxial stretch-formed nylon membrane, biaxial stretch-formed polybutylene terephthalate (PBT) (PBT) film, twin shaft
Stretch polyethylene terephthalate (PET) film, it is biaxial stretch-formed PEN (PEN) film, biaxial stretch-formed poly-
Propylene film.As the nylon membrane, it is not particularly limited, for example, can enumerates Nylon 6 Film, the film of nylon 6,6, MXD nylon membranes etc..Need
It is noted that the heat-resistant resin layer 2 can be formed as a single layer, or can also be with for example by polyester film/poly-
The form of the composite bed (composite bed formed by PET film/nylon membrane etc.) of acid amides film formation is formed.It is described exemplified with composite bed
In composition, preferably polyester film is configured at more more outward than PA membrane, and similarly preferred PET film is configured at than nylon membrane more outward
Side.
The thickness of the heat-resistant resin layer 2 is preferably 8 μm~50 μm.By be set as above-mentioned preferred lower limit with
On, sufficient intensity is can ensure that as housing material, also, by being set as below above-mentioned preferred higher limit, can reduce
The stress during shapings such as bulging method, deep drawing shaping, so as to improve mouldability.Wherein, the thickness of the heat-resistant resin layer 2
Particularly preferably 12 μm~25 μm.
Thermoplastic resin layer (thermal bonding resin layer) (la m) 3 undertakes following effects：Make housing material pair
Strong electrolyte of corrosivity used in lithium rechargeable battery etc. etc. also possesses excellent chemical-resistant, and to outsourcing
Package material assigns heat sealability.
As the thermoplastic resin layer 3, it is not particularly limited, preferably the non-stretched film layer of thermoplastic resin.The heat
The non-stretched film layer 3 of plastic resin is not particularly limited, preferably by by selected from least one of following substances thermoplastic resin
The unstretching film of formation is constituted：Polyethylene, polypropylene, olefin copolymer, their acid modifier and ionomer
(ionomer).It should be noted that the thermoplastic resin layer 3 both can be individual layer or composite bed.
Wherein, it is preferably following to constitute as the thermoplastic resin layer 3, including at least 3 layers of laminate structures, described 3 layers
Laminate structures laminated quilt for having an olefin-containing system resin on the two sides in the intermediate layer comprising the olefin-based resin containing elastomer components
Coating, and there are the elastomer components to turn into the island structure on island in the intermediate layer.
Both can be to be added with (being combined with) in olefin-based resin as the olefin-based resin containing elastomer components
The composition of elastomer or the elasticity for being combined with elastomer components in the way of chemistry in olefin-based resin skeleton
Modifies olefin-based resin.It should be noted that the term " elastomer " is used with also including the implication of rubber constituent.
The thickness of the thermoplastic resin layer 3 is preferably set to 10 μm~80 μm., can be abundant by being set as more than 10 μm
The generation of pin hole is prevented, also, by being set as less than 80 μm, resin usage amount can be reduced, cost is reduced so as to realize.
Wherein, the thickness of the thermoplastic resin layer 3 is particularly preferably set as 25 μm~50 μm.
The metal foil layer 4, which is undertaken to assign housing material 1, prevents oxygen, the effect of the barrier properties for gases of moisture intrusion.
As the metal foil layer 4, it is not particularly limited, it is usually used such as can enumerate aluminium foil, SUS paper tinsels (stainless steel) paper tinsel, copper foil
Aluminium foil.The thickness of the metal foil layer 4 is preferably 20 μm~100 μm.By that for more than 20 μm, can prevent in manufacture metal foil
When calendering when produce pin hole, also, when the shaping such as being molded by the way that bulging method, deep drawing for less than 100 μm, can be reduced should
Power, so as to improve mouldability.Wherein, the thickness of the metal foil layer 4 is particularly preferably 20 μm~50 μm.
For the metal foil layer 4, it is preferred that at least real to the face (face of the side of second adhesive phase 6) of inner side
Apply chemical conversion treatment.By implementing such chemical conversion treatment, content (electrolyte of battery etc.) can be substantially prevented from
Corrosion to metal foil surface.For example by carrying out following processing, chemical conversion treatment is implemented to metal foil.That is, for example, to entering
The surface coating of metal foil after row ungrease treatment is following 1)~any of 3) aqueous solution, then it is dried, and it is thus real
Apply chemical conversion treatment,
1) aqueous solution of the mixture comprising following substances：
Phosphoric acid,
Chromic acid and
At least one kind of compound in the group being made up of the metal salt of fluoride and the non-metal salt of fluoride；
2) aqueous solution of the mixture comprising following substances：
Phosphoric acid,
It is at least one kind of in the group being made up of acrylic resin, chitosan derivative resin and phenolic aldehyde system resin
Resin and
At least one kind of compound in the group being made up of chromic acid and chromium (III) salt；
3) aqueous solution of the mixture comprising following substances：
Phosphoric acid,
It is at least one kind of in the group being made up of acrylic resin, chitosan derivative resin and phenolic aldehyde system resin
Resin,
At least one kind of compound in the group being made up of chromic acid and chromium (III) salt and
At least one kind of compound in the group being made up of the metal salt of fluoride and the non-metal salt of fluoride.
For the chemical conversion envelope, chromium adhesion amount (per one side), preferably 0.1mg/m are used as2~50mg/m2,
Particularly preferably 2mg/m2~20mg/m2。
As the first adhesive phase 5, it is not particularly limited, for example, can enumerates the poly- ammonia of polyurethane adhesive layer, polyester
Ester adhesive layer, polyether polyurethane adhesive layer etc..The thickness of the first adhesive phase 5 is preferably set to 1 μm~5 μm.Its
In, from the viewpoint of the filming, lightweight from housing material, the thickness of the first adhesive phase 5 is particularly preferably set
For 1 μm~3 μm.
As the second adhesive phase 6, it is not particularly limited, for example, it is possible to use be used as above-mentioned first adhesive phase 5
Shown adhesive phase, preferably uses and few polyolefin adhesive is swelled as caused by electrolyte.The second adhesive
The thickness of layer 6 is preferably set to 1 μm~5 μm.Wherein, from housing material from the viewpoint of filming, lightweight, described
The thickness of two adhesive phases 6 is particularly preferably set as 1 μm~3 μm.
(deep drawing shaping, bulging etc.) is molded by the housing material 1 to the present invention, molded housing can be obtained
(battery container etc.).It should be noted that the housing material 1 of the present invention can directly be used without shaping.
One embodiment of the electrical storage device 20 constituted using the housing material 1 of the present invention is shown in Fig. 2.The electrical storage device
20 be lithium rechargeable battery.
The battery 20 includes：Electrolyte 21, lug (tab lead) 22, the plane above-mentioned outsourcing not being molded
Package material 1, and obtained from above-mentioned housing material 1 is molded, the molded housing 11 with housing recess 11b (referring to Fig. 2).
Electrical storage device main part 19 is made up of the electrolyte 21 and the lug 22.
One of the electrolyte 21 and the lug 22 is accommodated with the housing recess 11b of the molded housing 11
Point, the plane housing material 1 is configured with the molded housing 11, the peripheral part of the housing material 1 is (interior
3) side layer engages to form heat seal with sealing peripheral part 11a (la m 3) of the molded housing 11 through heat-sealing
Portion (heat-sealing portion), thus constitutes the battery 20.It should be noted that the leading section of the lug 22 is exported to outside (ginseng
See Fig. 2).
Embodiment
Next, the specific embodiment of the present invention is illustrated, but the present invention is not particularly limited to these embodiments.
＜ embodiments 1>
On two faces of the thickness for 30 μm of aluminium foil (aluminium foil by annealing of A8021 as defined in JIS H4160) 4,
Coating is included after phosphoric acid, polyacrylic acid (acrylic resin), chromium (III) salt compound, water, the chemical conversion treatment solution of alcohol,
It is dried in 180 DEG C, forms chemical conversion envelope.Chromium adhesion amount of the chemical conversion envelope per one side is 10mg/m2。
Then, on the face of aluminium foil 4 for completing above-mentioned chemical conversion treatment, via the polyurethane series of two-solution curing type
Adhesive 5, dry lamination (laminating) is carried out by thick 12 μm biaxial stretch-formed Nylon 6 Film (outer layer) 2.
Then, using the thickness that is formed by ethylene-propylene random copolymer as 4.5 μm the first resin bed, by ethylene-propylene
The thickness of block copolymer formation is 21 μm of the second resin bed, the thickness that is formed by ethylene-propylene random copolymer is 4.5 μm
The first resin bed by the order carry out 3 close layer by layer in the way of be coextruded using T moulds, thus obtain entering above-mentioned 3 layers
The diaphragm seal (resin bed of the first resin bed/second/first resin bed) 3 of laminated 20 μm of the thickness of row, then, by the diaphragm seal
Via the maleated polypropylene adhesive of two-solution curing type, (curing agent is many to one the first resin aspect of (la m) 3
Functional isocyanate) 6 and overlapped with another face of the aluminium foil 4 after above-mentioned dry lamination, by sandwich rubber niproll with plus
Thus heat implemented dry lamination between 100 DEG C of laminating roll and being crimped, then, in 40 DEG C of curings (heating) 5 days, by
This obtains constituting the electrical storage device housing material 1 that thickness as shown in Figure 1 is 79 μm.
It should be noted that the details to second resin bed (Ethylene-Propylene Block Copolymer) are illustrated, it is described
Second resin bed comprising following resin combinations constituted by forming, and the composition is：99 mass % fusing point is 163 DEG C, knot
Brilliant melting enthalpy (Japanese Wei " Knot crystalline substances melt エ ネ ル ギ ー ") is 58J/g the first elastomer-modified olefin-based resin, 1 mass %
Fusing point be 144 DEG C, the second elastomer-modified olefin-based resin that crystalline fusion enthalpy is 19J/g.Described first is elastomer-modified
Olefin-based resin and the second elastomer-modified olefin-based resin are comprising elastomer-modified homo-polypropylene and/or elastic structural reform
Property random copolymer.The elastomer-modified random copolymer is to contain propylene and other copolymer composition conducts in addition to propylene
The elastomer-modified body of the random copolymer of copolymer composition.It should be noted that SEM observations only ought be carried out to the second resin bed
When (being observed with SEM), being able to confirm that to the flexible body composition of the second resin bed turns into the island structure on island.
Above-mentioned term " fusing point " is meant that according to JIS K7121-1987, and (DSC) institute is determined by means of differential scanning calorimetry
The melting peak temperature of measure, term " crystalline fusion enthalpy " is meant that according to JIS K7122-1987, passes through means of differential scanning calorimetry
Determine the heat of fusion (crystalline fusion enthalpy) measured by (DSC).
In addition, as above-mentioned two-solution curing type maleated polypropylene adhesive, using binder solution (its be by
Maleated polypropylene (fusing point is 80 DEG C, and acid number is 10mgKOH/g), the work of 8 mass parts as host of 100 mass parts
For isocyanuric acid ester body (the NCO containing ratios of the hexamethylene diisocyanate of curing agent：20 mass %) and solvent mix
), by the binder solution so that solid state component coating weight turns into 2g/m2Mode be coated on another face of above-mentioned aluminium foil 4,
Heating makes after its drying, is overlapped with a first resin aspect of above-mentioned diaphragm seal 3.
＜ embodiments 2>
Instead of 30 μm of aluminium foil of thickness, 25 μm of aluminium foil (the process annealing of A8021 as defined in JIS H4160 of thickness is used
Aluminium foil), in addition, operate similarly to Example 1, the electrical storage device for obtaining 74 μm of the thickness of composition shown in Fig. 1 is used
Housing material 1.
＜ embodiments 3>
Polyurethane series further via two-solution curing type on the outside of 12 μm of biaxial stretch-formed Nylon 6 Film of thickness are bonded
Oxidant layer closes the polyethylene terephthalate film of 9 μm of thickness, in addition, operates similarly to Example 1, obtains Fig. 1 institutes
The electrical storage device housing material 1 of 92 μm of the thickness for the composition shown.
＜ embodiments 4>
Instead of 12 μm of biaxial stretch-formed Nylon 6 Film of thickness, used the biaxial stretch-formed Nylon 6 Film of 15 μm of thickness, except this with
Outside, operate similarly to Example 1, obtain the electrical storage device housing material of 82 μm of thickness.
＜ embodiments 5>
Instead of diaphragm seal (resin bed=4.5 μm/21 μm/4.5 of the resin bed of the first resin bed/second/first of 30 μm of thickness
μm), the diaphragm seal (resin bed of the first resin bed/second/first resin bed=6 μm/28 μm/6 μm) of 40 μm of thickness has been used, has been removed
Beyond this, operate similarly to Example 2, obtain the electrical storage device housing material of 89 μm of thickness.It should be noted that making
To constitute the resin of the first resin bed and the second resin bed, used respectively with embodiment 2 (embodiment 1) identical resin.
＜ comparative examples 1>
Instead of 30 μm of aluminium foil of thickness, having used the aluminium foil of 20 μm of thickness, (A8021 process is moved back as defined in JIS H4160
The aluminium foil of fire), in addition, operate similarly to Example 1, obtain the electrical storage device housing material of 69 μm of thickness.
＜ comparative examples 2>
Percent thermal shrinkage small 3%, 12 μm of thickness pair of the biaxial stretch-formed Nylon 6 Film than being used in embodiment 1 is used
The film of axle tensile nylon 6, in addition, is operated similarly to Example 1, obtains the electrical storage device outer packing material of 79 μm of thickness
Material.
＜ comparative examples 3>
Diaphragm seal (the resin of the resin bed of the first resin bed/second/first of 30 μm of thickness obtained from being closed layer by layer instead of 3
Layer), the diaphragm seal formed by ethylene-propylene random copolymer of 30 μm of thickness is used, in addition, similarly to Example 4
Ground is operated, and obtains the electrical storage device housing material of 79 μm of thickness.
Table 1
By the failure energy W of the electrical storage device housing material obtained in the various embodiments described above, each comparative exampleFT, it is above-mentioned
The failure energy W of the outer layer used in each embodiment, each comparative example heat-resistant resin film (biaxial stretch-formed Nylon 6 Film)FS, on
State each embodiment, the seal break-off energy W of the electrical storage device housing material of each comparative exampleP, and (WFT/WP) it is shown in table
1。
It should be noted that the failure energy W of the electrical storage device housing material of the various embodiments described above, each comparative exampleFT
Determine in the following manner, the outer layer used in the various embodiments described above, each comparative example heat-resistant resin film (biaxial stretch-formed nylon
6 films) failure energy WFSDetermine in the following manner, the various embodiments described above, the electrical storage device housing material of each comparative example
Seal break-off energy WPDetermine in the following manner.
The failure energy determination method of ＜ housing materials>
According to the JIS K7124-2-1999 (impact test methods that plastic sheeting and sheet material are carried out by free dart method
2 parts：Instrument Breakdown Method), in the environment of 23 DEG C of temperature, the fastener for being 40mm with internal diameter (clamp) pushes test film, in matter
Amount 6.5kg, the percussion hammer of hemispherical (radius 10mm hemispherical) equivalent to diameter 20mm drop naturally from 30cm height
Under the conditions of, determine the failure energy of housing material.It should be noted that using Toyo Seiki Co., Ltd.s drop hammer type
Shock machine (Falling weight graphic impact tester) is measured.
The failure energy determination method of ＜ heat-resistant resin films>
According to the JIS K7124-2-1999 (impact test methods that plastic sheeting and sheet material are carried out by free dart method
2 parts：Instrument Breakdown Method), in the environment of 23 DEG C of temperature, the fastener for being 40mm with internal diameter (clamp) pushes test film, in matter
Amount 6.5kg, the percussion hammer of hemispherical (radius 10mm hemispherical) equivalent to diameter 20mm drop naturally from 30cm height
Under the conditions of, determine the failure energy of heat-resistant resin film (biaxial stretch-formed Nylon 6 Film).It should be noted that using Toyo
Seiki Co., Ltd. landing impact testing machines are measured.
It should be noted that in embodiment 3, outer layer is due to being that (it includes the poly- terephthaldehyde of 9 μm of thickness by laminate film
The biaxial stretch-formed Nylon 6 Film of the polyurethane series adhesive phase of sour glycol ester film/3 μm of thickness/12 μm of thickness) formed, therefore
The failure energy of heat-resistant resin film in embodiment 3 is determined for the polyethylene terephthalate for including 9 μm of thickness
The laminate film (24 μm of thickness) of the biaxial stretch-formed Nylon 6 Film of the polyurethane series adhesive phase of ester film/3 μm of thickness/12 μm of thickness enters
OK.
The seal break-off energometry of ＜ housing materials>
Housing material is cut into width 15mm × length 100mm short strip shape, so as to obtain test film.Prepare 2 institutes
Test film is stated, after above-mentioned 2 test films are overlapped in the way of mutual la m turns into inner side, in width 15mm whole model
The heat-sealing of interior progress entire surface is enclosed, so as to form thermal seal (heat-sealing portion).The heat-sealing is by using Tester Industry
The heat-sealing device (TP-701-A) of Co., Ltd., in 200 DEG C of heat-sealing temperature, seal pressure 0.2MPa (gauge pressure) condition
The lower single-side heating carried out 2 seconds is carried out.
Then, according to JIS Z0238-1998, to 2 test films after the heat-sealing, its peel strength is determined.Will be described
One end of the length direction of 2 test films sealed is peeled off in the mutual interface of la m, clamps the stripped end, with
Draw speed (handle rate travel) carries out 180 degree for 100mm/ minutes and peels off to determine peel strength, strong as sealing
Spend (N/15mm width).When carrying out the measure of the peel strength, to " peel strength (longitudinal axis) " relative to " handle displacement is (horizontal
Axle) " chart data recorded.Calculate in chart (curve map) of the peel strength (N) relative to handle displacement (mm)
Curve (since peel off start to stripping terminate untill curve) downside area, so as to try to achieve seal break-off energy (J).
It should be noted that so-called " stripping terminates " is meant that, from the length of 2 test films sealed
The one end in direction starts after peeling off (after stripping starts), reaches the shape that the la m after heat bonding (sealant) is completely exfoliated each other
State after state.At the end of above-mentioned stripping, the peel strength is 0.
To each electrical storage device housing material resulting as described above, performance evaluation is carried out based on following evaluation assessments.
As a result it is shown in table 1.
＜ peels off the evaluation assessment of the cohesive force (cohesion) at interface>
The la m of housing material to determining after above-mentioned seal break-off energy (after stripping terminates) by visual observation
The two sides of stripping portion (destruction portion) is observed, based on following determinating references, evaluate stripping portion (destruction portion) two sides whether there is it is white
Change, albefaction degree (albefaction is stronger, can determine whether for cohesive force it is bigger).
(determinating reference)
Albefaction is significantly occurred, the situation that cohesive force is big is evaluated as "○", albefaction occurred to a certain extent, cohesive force
" △ " is evaluated as moderate situation, albefaction or the situation evaluation low substantially without albefaction, cohesive force are arrived by unconfirmed
For "×".
＜ bump test methods>
By each embodiment, comparative example makes the housing material of 2 rectangles respectively, by being carried out to a housing material
Deep drawing is molded, so as to obtain stereo shaping body, the stereo shaping body has：It is shaped to vertical 55mm, horizontal 30mm, depth 5.5mm
Three-dimensional shape (the approximately parallelepiped body shape of upper surface open) case, and the upper surface open mouthful from the case
Periphery towards general horizontal direction outside extend width 5mm sealing peripheral part.To the recessed of the stereo shaping body
Load in portion after battery main body portion (immitation of polypropylene), electrolyte 5mL is further internally injected, then, described
The sealing of stereo shaping body (is not carried out with another (another) plane housing material is overlapped on the la m of peripheral part
The housing material of shaping) la m peripheral part, by be heated to 200 DEG C metal heating plate carry out 2 seconds seal, from
And thermal seal (heat-sealing portion) is formed, thus obtain simulated battery.It should be noted that having used following electrolyte：Using as
Lithium hexafluoro phosphate (the LiPF of electrolyte6) be dissolved in 1mol/L concentration by ethylene carbonate (EC), dimethyl carbonate
(DMC), methyl ethyl carbonate (EMC) obtains in the mixed solvent with equivalent volumes than being coordinated.For each embodiment, compare
Example has made 10 simulated batteries.
Then, a diameter of 15mm pole is loaded with stable state on the upper surface (planar portions) of simulated battery, then
9kg spherical metal system hammer is fallen on pole, the anti-breaking fragility of housing material is evaluated based on following determinating reference.
(determinating reference)
In 10 simulated batteries of "○" ..., because dropping for hammer causes housing material in central portion (maximum planes portion)
The battery of fracture is 0 or 1
In " △ " ... 10 simulated batteries, because dropping for hammer causes housing material in central portion (maximum planes portion)
The battery of fracture is 2
In 10 simulated batteries of "×" ..., because dropping for hammer causes housing material in central portion (maximum planes portion)
The battery of fracture is 3~10.
＜ synthetic determinations ＞
It is "○" by the evaluation result of any one in the evaluation and bump test evaluation of the cohesive force at above-mentioned stripping interface
Situation be evaluated as " ◎ " (especially excellent), by certain one among 2 evaluation results be "○", and another one be " △ " feelings
Condition is evaluated as "○" (excellent), and the situation that both in 2 evaluation results are " △ " is evaluated as " △ " (substantially good), will
At least one among 2 evaluation results is evaluated as "×" (poor) for the situation of "×".
As shown in Table 1, even if the electrical storage device housing material of embodiments of the invention 1~5 is by from outside
Impact, is not easy to occur fracture, rupture in the central portion (maximum planes portion) of housing material, even if being rushed by from outside
Hit, be not easy to occur short circuit.In addition, the electrical storage device housing material of embodiments of the invention 1~5 is due to heat-sealing portion (warm
Sealing) stripping interface albefaction degree it is big, therefore the cohesive force at the stripping interface in heat-sealing portion is high, thus when electrical storage device by
During to from outside impact, the mutual heat cover of thermoplastic resin layer of housing material is easily peeled off because cohesion is peeled off
(be optionally prone in heat-sealing portion peel off, cohesional failure), thus, it is possible to more fully suppress housing material fracture,
Rupture.
On the other hand, the failure energy for electrical storage device housing material is less than the comparison of the prescribed limit of the present invention
For example 1, bump test result is poor.In addition, being less than prescribed limit of the invention for the failure energy of heat-resistant resin film
For comparative example 2, bump test result is poor.In addition, being less than the present invention for the failure energy of electrical storage device housing material
Prescribed limit, and seal break-off energy be less than 0.50J comparative example 3 for, peel off interface cohesive force it is low, bump test knot
Fruit is also poor.
Industrial applicability
The electrical storage device housing material of the present invention can be used as the housing material of various electrical storage devices, be stored as described
The concrete example of electric installation, be, for example,：
The electrical storage devices such as lithium secondary battery (lithium ion battery, lithium polymer battery etc.)；
Lithium-ion capacitance；
Double layer capacitor；Deng.Moreover, it relates to electrical storage device except above-mentioned example electrical storage device with
Outside, in addition to all-solid-state battery.
The application advocates to be willing to No. 2016-53402 preferential in the Japanese patent application laid that on March 17th, 2016 files an application
Power, the disclosure of which directly constitutes the part of the application.
Term used herein and explanation used to illustrate embodiments of the present invention, the present invention not by
It is limited.If without departing from its purport, then of the invention also to allow any design alteration within claims.
Claims (5)
1. a kind of electrical storage device housing material, it is comprising the heat-resistant resin film layer as outer layer, is used as la m
Thermoplastic resin layer and the metal foil layer set in two interlayer electrical storage device housing material, electric power storage dress
Put and be characterised by with housing material,
The electrical storage device is more than 1.5J with the failure energy of housing material,
The failure energy of the heat-resistant resin film is more than 1.3J.
2. electrical storage device housing material as claimed in claim 1, wherein, the la m is outside the electrical storage device
The thermoplastic resin that seal break-off energy of the packaging material under the mutual heat-sealing engagement state of thermoplastic resin layer is more than 0.50J
Lipid layer is formed.
3. electrical storage device housing material as claimed in claim 1 or 2, wherein, when by the electrical storage device outer packing
The failure energy of material is set to WFT, by the electrical storage device housing material in the mutual heat-sealing joint shape of thermoplastic resin layer
Seal break-off energy under state is set to WPWhen, (WFT/WP)>2.0。
4. electrical storage device housing material as claimed in claim 1 or 2, it is characterised in that the thermoplastic resin layer is extremely
Less comprising 3 layers of laminate structures, 3 layers of laminate structures laminated coating for having an olefin-containing system resin on the two sides in intermediate layer,
The intermediate layer includes the olefin-based resin containing elastomer components,
There are the elastomer components to turn into the island structure on island in the intermediate layer.
5. a kind of electrical storage device, it is characterised in that have
Electrical storage device main part, and
Electrical storage device housing material according to any one of claims 1 to 4,
The electrical storage device main part carries out outer packing using the housing material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-053402 | 2016-03-17 | ||
| JP2016053402A JP6738171B2 (en) | 2016-03-17 | 2016-03-17 | Exterior material for power storage device and power storage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107204406A true CN107204406A (en) | 2017-09-26 |
| CN107204406B CN107204406B (en) | 2022-08-12 |
Family
ID=59904893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710147482.7A Active CN107204406B (en) | 2016-03-17 | 2017-03-13 | Outer packaging material for electricity storage device and electricity storage device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6738171B2 (en) |
| KR (1) | KR20170108823A (en) |
| CN (1) | CN107204406B (en) |
| TW (1) | TWI716560B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109671875A (en) * | 2017-10-16 | 2019-04-23 | 昭和电工包装株式会社 | Electric energy storage device housing material and electric energy storage device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6936093B2 (en) * | 2017-09-28 | 2021-09-15 | 昭和電工パッケージング株式会社 | Exterior material for power storage device, exterior case for power storage device and power storage device |
| KR102555751B1 (en) | 2017-10-17 | 2023-07-14 | 주식회사 엘지에너지솔루션 | Gas Dischargeable Pouch-Type Case for Secondary Battery |
| JP7324611B2 (en) * | 2018-05-25 | 2023-08-10 | 株式会社レゾナック・パッケージング | Laminate for molded container, molded container and package |
| CN110752323A (en) * | 2019-10-08 | 2020-02-04 | 宜兴市惠华复合材料有限公司 | Composite film for packaging lithium ion battery and preparation method thereof |
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| JP2005116322A (en) * | 2003-10-07 | 2005-04-28 | Sumitomo Electric Ind Ltd | Packaging material for non-aqueous electrolyte battery and non-aqueous electrolyte battery |
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- 2017-03-13 CN CN201710147482.7A patent/CN107204406B/en active Active
- 2017-03-13 TW TW106108207A patent/TWI716560B/en active
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| JP2000195475A (en) * | 1998-12-25 | 2000-07-14 | Mitsubishi Chemicals Corp | Secondary battery |
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| CN109671875A (en) * | 2017-10-16 | 2019-04-23 | 昭和电工包装株式会社 | Electric energy storage device housing material and electric energy storage device |
| CN109671875B (en) * | 2017-10-16 | 2023-08-01 | 株式会社乐索纳克包装 | Outer packaging material for power storage device and power storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107204406B (en) | 2022-08-12 |
| JP6738171B2 (en) | 2020-08-12 |
| TWI716560B (en) | 2021-01-21 |
| KR20170108823A (en) | 2017-09-27 |
| TW201735419A (en) | 2017-10-01 |
| JP2017168342A (en) | 2017-09-21 |
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