JP7416688B2 - 改良された微多孔膜、バッテリーセパレータ、バッテリー、及びこれらを備えるデバイス - Google Patents
改良された微多孔膜、バッテリーセパレータ、バッテリー、及びこれらを備えるデバイス Download PDFInfo
- Publication number
- JP7416688B2 JP7416688B2 JP2020524465A JP2020524465A JP7416688B2 JP 7416688 B2 JP7416688 B2 JP 7416688B2 JP 2020524465 A JP2020524465 A JP 2020524465A JP 2020524465 A JP2020524465 A JP 2020524465A JP 7416688 B2 JP7416688 B2 JP 7416688B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- microporous
- less
- test
- films
- 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.)
- Active
Links
- 239000012528 membrane Substances 0.000 title description 71
- 238000012360 testing method Methods 0.000 claims description 63
- 238000001035 drying Methods 0.000 claims description 37
- 230000008961 swelling Effects 0.000 claims description 33
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 28
- 238000007906 compression Methods 0.000 claims description 20
- 230000006835 compression Effects 0.000 claims description 20
- 238000010304 firing Methods 0.000 claims description 17
- 241000446313 Lamella Species 0.000 claims description 16
- 239000003792 electrolyte Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 12
- 238000012669 compression test Methods 0.000 claims description 11
- 239000000523 sample Substances 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 5
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005524 ceramic coating Methods 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims 2
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical group FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 claims 1
- 239000004743 Polypropylene Substances 0.000 description 84
- 229920001155 polypropylene Polymers 0.000 description 84
- 239000010410 layer Substances 0.000 description 64
- 239000004698 Polyethylene Substances 0.000 description 46
- 229920000573 polyethylene Polymers 0.000 description 46
- 230000000052 comparative effect Effects 0.000 description 40
- 238000000034 method Methods 0.000 description 38
- 229920000098 polyolefin Polymers 0.000 description 28
- 239000000203 mixture Substances 0.000 description 24
- 230000008569 process Effects 0.000 description 24
- -1 polyethylene Polymers 0.000 description 23
- 239000011247 coating layer Substances 0.000 description 20
- 229910052744 lithium Inorganic materials 0.000 description 16
- 239000011148 porous material Substances 0.000 description 15
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 14
- 229920001577 copolymer Polymers 0.000 description 11
- 230000037303 wrinkles Effects 0.000 description 11
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 10
- 229910001416 lithium ion Inorganic materials 0.000 description 10
- 229920000642 polymer Polymers 0.000 description 10
- 239000002033 PVDF binder Substances 0.000 description 7
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000012982 microporous membrane Substances 0.000 description 6
- 239000004014 plasticizer Substances 0.000 description 6
- 239000002356 single layer Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229920001169 thermoplastic Polymers 0.000 description 5
- 239000008199 coating composition Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- 238000010606 normalization Methods 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000009830 intercalation Methods 0.000 description 3
- 239000002667 nucleating agent Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 125000003821 2-(trimethylsilyl)ethoxymethyl group Chemical group [H]C([H])([H])[Si](C([H])([H])[H])(C([H])([H])[H])C([H])([H])C(OC([H])([H])[*])([H])[H] 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004954 Polyphthalamide Substances 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 239000001989 lithium alloy Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 229920006375 polyphtalamide Polymers 0.000 description 2
- 239000005077 polysulfide Substances 0.000 description 2
- 229920001021 polysulfide Polymers 0.000 description 2
- 150000008117 polysulfides Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001290 polyvinyl ester Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000004626 scanning electron microscopy Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- FSSPGSAQUIYDCN-UHFFFAOYSA-N 1,3-Propane sultone Chemical compound O=S1(=O)CCCO1 FSSPGSAQUIYDCN-UHFFFAOYSA-N 0.000 description 1
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 1
- QHTJSSMHBLGUHV-UHFFFAOYSA-N 2-methylbutan-2-ylbenzene Chemical compound CCC(C)(C)C1=CC=CC=C1 QHTJSSMHBLGUHV-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910021592 Copper(II) chloride Inorganic materials 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- 239000004705 High-molecular-weight polyethylene Substances 0.000 description 1
- 229910032387 LiCoO2 Inorganic materials 0.000 description 1
- 229910003005 LiNiO2 Inorganic materials 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 229910020050 NbSe3 Inorganic materials 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229910003092 TiS2 Inorganic materials 0.000 description 1
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- BTGRAWJCKBQKAO-UHFFFAOYSA-N adiponitrile Chemical compound N#CCCCCC#N BTGRAWJCKBQKAO-UHFFFAOYSA-N 0.000 description 1
- 238000007754 air knife coating Methods 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- HHNHBFLGXIUXCM-GFCCVEGCSA-N cyclohexylbenzene Chemical compound [CH]1CCCC[C@@H]1C1=CC=CC=C1 HHNHBFLGXIUXCM-GFCCVEGCSA-N 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000010416 ion conductor Substances 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052960 marcasite Inorganic materials 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052961 molybdenite Inorganic materials 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920005569 poly(vinylidene fluoride-co-hexafluoropropylene) Polymers 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 229920000131 polyvinylidene Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000002459 porosimetry Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- OWAHJGWVERXJMI-UHFFFAOYSA-N prop-2-ynyl methanesulfonate Chemical compound CS(=O)(=O)OCC#C OWAHJGWVERXJMI-UHFFFAOYSA-N 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
- H01M50/417—Polyolefins
-
- 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
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
-
- 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
-
- 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
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/431—Inorganic material
- H01M50/434—Ceramics
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
- H01M50/451—Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
- H01M50/457—Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/463—Separators, membranes or diaphragms characterised by their shape
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
- H01M50/491—Porosity
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
- H01M50/494—Tensile strength
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Cell Separators (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Secondary Cells (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Description
(│li-lf│/li)×100 (1)
16ミクロンに対する正規化を、次式(a)により行う:
(サンプルの突刺強度/サンプルのフィルム厚ミクロン)×16ミクロン (a)
20ミクロンに対する正規化を、次式(b)により行う:
(サンプルの突刺強度/サンプルの厚さミクロン)×20ミクロン (b)
別の態様では、本明細書に開示されている少なくとも1つの微多孔膜を備える、から成る、又はから本質的に成るバッテリーセパレータを記載する。いくつかの実施形態では、少なくとも1つの微多孔膜又は微孔フィルム(セパレータ膜、被覆されるようにしたセパレータベースフィルム)を片面又は両面に被覆して、片面又は両面被覆バッテリーセパレータを形成してよい。本明細書中のいくつかの実施形態による片面被覆(OSC)セパレータ及び両面被覆(TSC)バッテリーセパレータを図1に示す。
直接これらと接して提供される、上記本明細書に記載されているいずれかのバッテリーセパレータ並びに1つ以上の電極、例えば、アノード、カソード、又はアノード及びカソードを備えるコンポジット又はデバイス(セル、システム、バッテリー、コンデンサー、その他)。電極の種類はそのように限定されない。例えば、電極は、リチウムイオン二次電池における使用に適するものであり得る。本発明の少なくとも選択される実施形態は、最新の高エネルギー、高電圧、及び/若しくはCE、UPS、若しくはEV、EDV、ISS若しくはハイブリッド乗り物バッテリーなどの高クーロン速度リチウム電池を用いた使用又はこれらにおける使用、並びに/又は最新の高エネルギー、高電圧、及び/若しくは高充電/放電若しくは急速充電/放電電極、カソード、及び同種のものを用いた使用に充分に適し得る。本発明の少なくとも特定の薄い(12μm未満、好ましくは10μm未満、より好ましくは8μm未満)及び/又は強い又はロバストなドライプロセス膜又はセパレータの実施形態は、最新の高エネルギー、高電圧、及び/若しくは高クーロン速度リチウム電池(又はコンデンサー)を用いた使用又はこれらにおける使用、並びに/又は最新の高エネルギー、高電圧、及び/若しくは高充電/放電若しくは急速充電/放電電極、カソード、及び同種のものを用いた使用に特に充分に適し得る。
実施例1(12ミクロンPP/PE/PP三層):本発明の33%/33%/33%の比のPP/PE/PPの12ミクロン三層
実施例2a(16ミクロンPP/PE/PP三層):本発明の31%/38%/31%の比のPP/PE/PPの16ミクロン三層
実施例2b(16ミクロンPP/PE/PP三層):本発明の31%/38%/31%の比のPP/PE/PPの16ミクロン三層
実施例3(16ミクロンPP/PE/PP三層):本発明の31%/38%/31%の比のPP/PE/PPの16ミクロン三層
実施例4(改良された14μm三層):33%/33%/33%の比のPP/PE/PPの13~14ミクロン三層
実施例5(改良された20μm三層):本発明の31%/38%/31%の比のPP/PE/PPの20ミクロン三層
比較例1(12ミクロンPP/PE/PP三層):比較の33%/33%/33%の比のPP/PE/PPの12ミクロン三層
比較例2(16ミクロンPP/PE/PP三層):比較の33%/33%/33%の比のPP/PE/PPの16ミクロン三層
比較例3(16ミクロンPP/PE/PP三層):比較のPPの16ミクロン単層
比較例4(14ミクロン(PP/PP/PP)/(PP/PE/PP)/(PP/PP/PP)):比較の33%/33%/33%の全体的比の(PP/PP/PP)/(PP/PE/PP)/(PP/PP/PP))の14ミクロン三層
比較例5(14μm三層):比較の33%/33%/33%の比のPP/PE/PPの14ミクロン三層
比較例6(20μm三層):比較の33%/33%/33%の比のPP/PE/PPの低ガーレー20ミクロン三層
比較例7(12μm三層)
半球状プローブを備える熱機械分析装置(TMA)を圧縮試験のために使用する。圧縮力を、0.25N/分の速度で0.5Nまで上昇させる。それから、同じ速度で力を0.01Nまで減じる。力を印加する前後の膜厚さを使用して圧縮%を算出する。結果を下表5に示す。
インストロン(Instron)圧縮試験機を使用して、突刺試験を行う。25mm/分クロスヘッド速度を使用して試験機のクロスヘッドに0.5mm半径の針を取り付け、該針により破壊する膜の点における最大力を突刺強度として記録する。「スリット状」は、その長さが、その高さのおよそ3倍超、およそ4倍超、およそ5倍超、およそ6倍超、およそ7倍超、およそ8倍超、およそ9倍超、又はおよそ10倍超である開口部を表すために使用される。「丸形」は、その長さが、その高さのおよそ3倍以下、2倍、2.2倍、又は1倍である開口部を表すために使用される。図4に示されているように、本発明の微孔フィルム(実施例4)を突刺試験に付す場合に丸形開口部を形成し、比較微孔フィルム(比較例5)を突刺試験に付す場合にスリット状開口部を形成した。本発明の実施例のため、開口部は、高さ0.70mm、幅又は長さ1.57mmを有する。本発明の比較例のため、開口部は、高さ0.97mm、幅又は長さ10.98mmを有する。
20インチ/分のクロスヘッド速度においてインストロン試験機で0.5インチ×2インチの膜検体の延伸によって、引張特性を試験する。最大力及び破断点伸びを、引張強さ及び伸びと呼ぶ。応力対歪み曲線を、延伸処理中に集められた個々のデータ点を用いてプロットすることができる。自動及び弦モジュラスを、データを使用して算出することもできる。12ミクロン、16ミクロン及び20ミクロン比較例並びに実施例を試験した。MD応力-歪み曲線を図13に示し、MD引張強さ、MD破断前伸び、自動ヤング率、及び弦モジュラスについての算出値を、下表6に示す。
MD拘束膨張試験を行い、上表1に示されている処理工程に従ってバッテリー製造者により使用される処理工程をシミュレートする。本明細書に記載されているいくつかの比較例及び本発明の実施例の結果を下表7に示す。
DEC中膨張試験を次のように行う:長さ50mm×幅25mmの膜検体を縦方向に沿って裁断した。炭酸ジエチル中に1時間浸漬する前(li)後(lf)でノギスを使用してフィルムの長さを測定する。次式(3)により膨潤%を算出する:
(lf-li)/li×100 (3)
比較及び本発明の16μm三層のSEMを20,000倍で撮影し、図7に示す。195nmである本発明の実施例2aのラメラ厚さと比較して、比較例2の最厚ラメラは390nmであった。比較例2の平均ラメラ厚さは約158nmであったが、本発明の実施例2aの平均厚さは132nmであった。
Claims (14)
- PP/PE/PPの三層からなるドライプロセス微孔フィルムであって、
前記三層は、25/50/25~35/30/35の層厚比と12~20μmの厚みを有し、平均ラメラ厚みが132nm以下であり、前記フィルムは0.2%以下のMD拘束膨張を有し、かつ
次の特性:
前記フィルムを90℃、1時間において無拘束下で焼成する場合、2%以上の無拘束MD収縮率と;
前記フィルムを105℃、1時間において無拘束下で焼成する場合、2.5%以上の無拘束MD収縮率と;
80℃、24時間で拘束下の焼成によるMD拘束膨張試験を使用して測定する場合、0.2%以下のMD拘束膨張と;
半球状プローブを備える圧縮試験機を使用して、圧縮力を0.25N/分の速度で0.5Nまで上昇させた後、0.01Nまで減じる圧縮試験による圧縮前後の膜厚を算出することにより得られる反発弾性率又は回復率が5%以上であること;
前記圧縮試験によって測定する場合、18%以上の最大圧縮率と;
炭酸ジエチル中に1時間浸漬するDEC中膨潤試験による測定の場合、0.95%以下のDEC中の膨潤率と;
前記フィルムは、突刺試験に付す場合、丸形であってスリット状でない開口部を示すこと;及び
350g/16ミクロン超の正規化突刺強度と;
の少なくとも1つを有する微孔フィルム。 - 前記フィルムを105℃、1時間において無拘束下で焼成する場合、前記フィルムは2.5%以上の無拘束MD収縮率を有する、請求項1に記載の微孔フィルム。
- 前記フィルムを105℃、1時間において無拘束下で焼成する場合、前記フィルムは6%以上又は9%以上の無拘束MD収縮率を有する、請求項1に記載の微孔フィルム。
- 前記フィルムを90℃、1時間において無拘束下で焼成する場合、前記フィルムは2%以上の無拘束MD収縮率を有する、請求項1に記載の微孔フィルム。
- 前記フィルムは、0のMD拘束膨張を有する、請求項1に記載の微孔フィルム。
- 前記フィルムは、圧縮試験によって測定する場合、5%以上の反発弾性率又は回復率を示す、請求項1に記載の微孔フィルム。
- 前記フィルムは、圧縮試験によって測定する場合、18%以上の最大圧縮率を示す、請求項1に記載の微孔フィルム。
- 前記フィルムは、前記DEC中膨潤試験による測定の場合、0.95%以下のDEC中の膨潤率を示す、請求項1に記載の微孔フィルム。
- 前記フィルムは、前記DEC中膨潤試験による測定の場合、0.6%以下のDEC中の膨潤率を示す、請求項1に記載の微孔フィルム。
- 前記フィルムは、350g/16ミクロン以上の正規化突刺強度を有する、請求項1に記載の微孔フィルム。
- 前記フィルムは、400g/16ミクロン以上の正規化突刺強度を有する、請求項1に記載の微孔フィルム。
- 請求項1に記載の微孔フィルムを備え、前記微孔フィルムの少なくとも1つの面は、その上に設けられたコーティングを有し、前記コーティングの少なくとも1つは、セラミックコーティングである、バッテリーセパレータ。
- 請求項12に記載のバッテリーセパレータを備える二次電池であって、炭酸エチレン(EC)、炭酸プロピレン(PC)、炭酸ジメチル(DMC)、炭酸エチルメチル(EMC)、炭酸ジエチル(DEC)、及び炭酸モノフルオロエチレン(FEC)から成る群から選択される電解質溶媒を含む、二次電池。
- 請求項13に記載の二次電池を備えるデバイス。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2024000230A JP2024041840A (ja) | 2017-11-03 | 2024-01-04 | 改良された微多孔膜、バッテリーセパレータ、バッテリー、及びこれらを備えるデバイス |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762581317P | 2017-11-03 | 2017-11-03 | |
US62/581,317 | 2017-11-03 | ||
PCT/US2018/058664 WO2019089897A1 (en) | 2017-11-03 | 2018-11-01 | Improved microporus membranes, battery separators, batteries, and devices having the same |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2024000230A Division JP2024041840A (ja) | 2017-11-03 | 2024-01-04 | 改良された微多孔膜、バッテリーセパレータ、バッテリー、及びこれらを備えるデバイス |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021501968A JP2021501968A (ja) | 2021-01-21 |
JP7416688B2 true JP7416688B2 (ja) | 2024-01-17 |
Family
ID=66333359
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020524465A Active JP7416688B2 (ja) | 2017-11-03 | 2018-11-01 | 改良された微多孔膜、バッテリーセパレータ、バッテリー、及びこれらを備えるデバイス |
JP2024000230A Pending JP2024041840A (ja) | 2017-11-03 | 2024-01-04 | 改良された微多孔膜、バッテリーセパレータ、バッテリー、及びこれらを備えるデバイス |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2024000230A Pending JP2024041840A (ja) | 2017-11-03 | 2024-01-04 | 改良された微多孔膜、バッテリーセパレータ、バッテリー、及びこれらを備えるデバイス |
Country Status (6)
Country | Link |
---|---|
US (1) | US20200303704A1 (ja) |
EP (1) | EP3704748A4 (ja) |
JP (2) | JP7416688B2 (ja) |
KR (1) | KR20200085296A (ja) |
CN (1) | CN111512472A (ja) |
WO (1) | WO2019089897A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102392398B1 (ko) * | 2018-06-22 | 2022-04-29 | 주식회사 엘지에너지솔루션 | 전기화학소자용 분리막 및 이를 포함하는 전기화학소자 |
CN112421128B (zh) * | 2019-08-05 | 2021-10-22 | 宁德时代新能源科技股份有限公司 | 一种锂离子电池 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007311332A (ja) | 2006-04-07 | 2007-11-29 | Celgard Llc | 改良された強度及び安定性を示す多層分離膜 |
JP2012003938A (ja) | 2010-06-17 | 2012-01-05 | Hitachi Maxell Ltd | 電池用セパレータおよびリチウム二次電池 |
JP2014003038A (ja) | 2012-02-15 | 2014-01-09 | Toray Battery Separator Film Co Ltd | 電池用セパレータ、および、電池用セパレータの製造方法 |
JP2015181112A (ja) | 2015-04-21 | 2015-10-15 | トヨタ自動車株式会社 | 二次電池及びその製造方法ならびに該電池に用いられる負極シートの製造方法 |
WO2016085970A1 (en) | 2014-11-26 | 2016-06-02 | Celgard, Llc | Improved multilayer microporous separators for lithium ion secondary batteries and related methods |
JP2017025294A (ja) | 2015-06-19 | 2017-02-02 | 宇部興産株式会社 | ポリオレフィン微多孔膜、蓄電デバイス用セパレータフィルム、および蓄電デバイス |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5952120A (en) * | 1997-04-15 | 1999-09-14 | Celgard Llc | Method of making a trilayer battery separator |
US6432586B1 (en) | 2000-04-10 | 2002-08-13 | Celgard Inc. | Separator for a high energy rechargeable lithium battery |
JP2002260726A (ja) * | 2000-12-28 | 2002-09-13 | Japan Storage Battery Co Ltd | 非水電解質二次電池 |
US8795565B2 (en) * | 2006-02-21 | 2014-08-05 | Celgard Llc | Biaxially oriented microporous membrane |
JP5230373B2 (ja) | 2008-11-25 | 2013-07-10 | キヤノン株式会社 | 画像読取装置及び画像形成装置 |
US20110223486A1 (en) * | 2010-03-12 | 2011-09-15 | Xiaomin Zhang | Biaxially oriented porous membranes, composites, and methods of manufacture and use |
CN102751459B (zh) * | 2011-04-22 | 2016-03-23 | 天津东皋膜技术有限公司 | 后交联橡胶、聚烯烃复合材料纳米微多孔隔膜及其制造方法 |
KR20150041017A (ko) * | 2012-08-06 | 2015-04-15 | 솔베이 스페셜티 폴리머스 이태리 에스.피.에이. | 혼성 플루오로중합체 조성물 |
KR20150058316A (ko) * | 2012-09-20 | 2015-05-28 | 셀가드 엘엘씨 | 박형 배터리 분리막 및 방법 |
CN103901999A (zh) * | 2012-12-29 | 2014-07-02 | 鸿富锦精密工业(深圳)有限公司 | 电子设备 |
CN103571420B (zh) * | 2013-11-21 | 2015-06-17 | 中国海诚工程科技股份有限公司 | 一种用于锂离子电池陶瓷隔膜涂料的粘合剂及其制备方法 |
JP6555128B2 (ja) * | 2013-12-06 | 2019-08-07 | 東レ株式会社 | ポリオレフィン微多孔膜、非水電解液系二次電池用セパレータ、ポリオレフィン微多孔膜捲回体、非水電解液系二次電池およびポリオレフィン微多孔膜の製造方法 |
JP6527505B2 (ja) * | 2014-03-31 | 2019-06-05 | 株式会社クラレ | 二軸延伸フィルムの製造方法 |
US10658640B2 (en) * | 2014-08-12 | 2020-05-19 | Toray Industries, Inc. | Polyolefin microporous membrane, production method thereof, separator for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte secondary battery |
WO2017043728A1 (ko) * | 2015-09-07 | 2017-03-16 | 삼성에스디아이 주식회사 | 다공성 필름의 제조 방법, 이로 제조된 다공성 필름, 및 이를 포함한 분리막 또는 전기화학 전지 |
WO2017049065A1 (en) * | 2015-09-18 | 2017-03-23 | Celgard, Llc | Improved membranes, calendered microporous membranes, battery separators and related methods |
US20200185769A1 (en) * | 2016-04-15 | 2020-06-11 | Solvay Specialty Polymers Italy S.P.A. | Inorganic/organic compositions |
-
2018
- 2018-11-01 US US16/760,969 patent/US20200303704A1/en active Pending
- 2018-11-01 WO PCT/US2018/058664 patent/WO2019089897A1/en unknown
- 2018-11-01 EP EP18872560.0A patent/EP3704748A4/en active Pending
- 2018-11-01 CN CN201880083698.4A patent/CN111512472A/zh active Pending
- 2018-11-01 KR KR1020207015895A patent/KR20200085296A/ko unknown
- 2018-11-01 JP JP2020524465A patent/JP7416688B2/ja active Active
-
2024
- 2024-01-04 JP JP2024000230A patent/JP2024041840A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007311332A (ja) | 2006-04-07 | 2007-11-29 | Celgard Llc | 改良された強度及び安定性を示す多層分離膜 |
JP2012003938A (ja) | 2010-06-17 | 2012-01-05 | Hitachi Maxell Ltd | 電池用セパレータおよびリチウム二次電池 |
JP2014003038A (ja) | 2012-02-15 | 2014-01-09 | Toray Battery Separator Film Co Ltd | 電池用セパレータ、および、電池用セパレータの製造方法 |
WO2016085970A1 (en) | 2014-11-26 | 2016-06-02 | Celgard, Llc | Improved multilayer microporous separators for lithium ion secondary batteries and related methods |
JP2015181112A (ja) | 2015-04-21 | 2015-10-15 | トヨタ自動車株式会社 | 二次電池及びその製造方法ならびに該電池に用いられる負極シートの製造方法 |
JP2017025294A (ja) | 2015-06-19 | 2017-02-02 | 宇部興産株式会社 | ポリオレフィン微多孔膜、蓄電デバイス用セパレータフィルム、および蓄電デバイス |
Also Published As
Publication number | Publication date |
---|---|
JP2024041840A (ja) | 2024-03-27 |
US20200303704A1 (en) | 2020-09-24 |
EP3704748A4 (en) | 2021-08-11 |
KR20200085296A (ko) | 2020-07-14 |
WO2019089897A1 (en) | 2019-05-09 |
JP2021501968A (ja) | 2021-01-21 |
CN111512472A (zh) | 2020-08-07 |
EP3704748A1 (en) | 2020-09-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11949124B2 (en) | Coated separators, lithium batteries, and related methods | |
KR101672815B1 (ko) | 전기화학소자용 분리막 | |
US10115948B2 (en) | Separator for a non-aqueous secondary battery and non-aqueous secondary battery | |
JP2024041840A (ja) | 改良された微多孔膜、バッテリーセパレータ、バッテリー、及びこれらを備えるデバイス | |
KR101103163B1 (ko) | 폴리올레핀제 미다공막 | |
JP6367453B2 (ja) | 蓄電デバイス用セパレータ及びそれを用いた積層体、捲回体、リチウムイオン二次電池又は蓄電デバイス | |
US20170338459A1 (en) | Separator for a non-aqueous electrolyte battery, non-aqueous electrolyte battery, and method of manufacturing non-aqueous electrolyte battery | |
TWI762647B (zh) | 新穎或經改良的微孔膜、電池組分隔件、經塗覆之分隔件、電池組及相關方法 | |
EP2750219A1 (en) | Method for manufacturing a separator, separator formed by same and electrochemical device having same | |
TW201729449A (zh) | 非水系二次電池用隔板及非水系二次電池 | |
EP3340342B1 (en) | Separator for power storage device, laminated body, roll, lithium-ion secondary battery or power storage device using it | |
CN112397846A (zh) | 用于锂离子二次电池的改进的多层微孔膜隔板及相关方法 | |
JP2023076439A (ja) | 含浸用基材フィルム、改良された含浸製品、及び関連方法 | |
TW201836852A (zh) | 聚烯烴微多孔膜 | |
TW202015275A (zh) | 含無機塗層的電化學裝置用之隔板及彼之製造方法 | |
JP2023177612A (ja) | 非水電解液二次電池用セパレータ | |
KR20230100652A (ko) | 비수 전해액 이차 전지용 세퍼레이터, 비수 전해액 이차 전지용 부재 및 비수 전해액 이차 전지 | |
KR20120086038A (ko) | 이차전지용 전극조립체 | |
JPWO2019151220A1 (ja) | ポリオレフィン微多孔膜、コーティングフィルム及び電池、並びにポリオレフィン微多孔膜の製造方法 | |
JP7067378B2 (ja) | セパレータ | |
US20220328935A1 (en) | Nonaqueous electrolyte secondary battery separator, nonaqueous electrolyte secondary battery member, and nonaqueous electrolyte secondary battery | |
US20220223976A1 (en) | Improved coated battery separators and batteries | |
EP4160806A1 (en) | Separator for nonaqueous secondary batteries, and nonaqueous secondary battery | |
JP2020161321A (ja) | 多孔複合フィルム、電気化学素子、及び多孔複合フィルムの製造方法 | |
KR20240023424A (ko) | 비수계 이차 전지용 세퍼레이터 및 비수계 이차 전지 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200925 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20211018 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20221011 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20221101 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20230126 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230331 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230704 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20231003 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20231011 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20231205 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20240104 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7416688 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |