CN114171851A - 改进的电池隔板和相关方法 - Google Patents
改进的电池隔板和相关方法 Download PDFInfo
- Publication number
- CN114171851A CN114171851A CN202111487555.XA CN202111487555A CN114171851A CN 114171851 A CN114171851 A CN 114171851A CN 202111487555 A CN202111487555 A CN 202111487555A CN 114171851 A CN114171851 A CN 114171851A
- Authority
- CN
- China
- Prior art keywords
- nonwoven
- foregoing
- coating
- polyolefin
- polyethylene
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000000576 coating method Methods 0.000 claims abstract description 108
- 239000011248 coating agent Substances 0.000 claims abstract description 101
- 239000012982 microporous membrane Substances 0.000 claims abstract description 84
- 239000000463 material Substances 0.000 claims abstract description 57
- 229920000642 polymer Polymers 0.000 claims abstract description 48
- 239000000945 filler Substances 0.000 claims abstract description 38
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 37
- 238000010030 laminating Methods 0.000 claims abstract description 15
- 238000003475 lamination Methods 0.000 claims abstract description 12
- -1 polyethylene terephthalate Polymers 0.000 claims description 115
- 239000004698 Polyethylene Substances 0.000 claims description 93
- 229920000573 polyethylene Polymers 0.000 claims description 93
- 239000004743 Polypropylene Substances 0.000 claims description 70
- 229920001155 polypropylene Polymers 0.000 claims description 70
- 229920000098 polyolefin Polymers 0.000 claims description 66
- 239000000203 mixture Substances 0.000 claims description 53
- 239000010410 layer Substances 0.000 claims description 51
- 229920001577 copolymer Polymers 0.000 claims description 50
- 239000000835 fiber Substances 0.000 claims description 44
- 229920001748 polybutylene Polymers 0.000 claims description 32
- 239000004745 nonwoven fabric Substances 0.000 claims description 22
- 238000002844 melting Methods 0.000 claims description 21
- 230000008018 melting Effects 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 239000011116 polymethylpentene Substances 0.000 claims description 16
- 229920000728 polyester Polymers 0.000 claims description 15
- 229920002480 polybenzimidazole Polymers 0.000 claims description 12
- 239000004952 Polyamide Substances 0.000 claims description 11
- 229920002647 polyamide Polymers 0.000 claims description 11
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 11
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 11
- 229920002313 fluoropolymer Polymers 0.000 claims description 9
- 239000004811 fluoropolymer Substances 0.000 claims description 9
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 8
- 229920003235 aromatic polyamide Polymers 0.000 claims description 8
- 229910001416 lithium ion Inorganic materials 0.000 claims description 8
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 230000001680 brushing effect Effects 0.000 claims description 7
- 238000007598 dipping method Methods 0.000 claims description 7
- 229920000106 Liquid crystal polymer Polymers 0.000 claims description 6
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims description 6
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 6
- 229920002215 polytrimethylene terephthalate Polymers 0.000 claims description 6
- 239000002356 single layer Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 3
- 229920006397 acrylic thermoplastic Polymers 0.000 claims description 2
- 229920005594 polymer fiber Polymers 0.000 claims description 2
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000002861 polymer material Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 26
- 239000002033 PVDF binder Substances 0.000 description 22
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 22
- 239000002131 composite material Substances 0.000 description 20
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 18
- 239000012528 membrane Substances 0.000 description 13
- 239000004693 Polybenzimidazole Substances 0.000 description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 description 9
- 239000000377 silicon dioxide Substances 0.000 description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 229920002577 polybenzoxazole Polymers 0.000 description 8
- 229920000271 Kevlar® Polymers 0.000 description 7
- 229920000784 Nomex Polymers 0.000 description 7
- 239000004677 Nylon Substances 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 7
- 239000004761 kevlar Substances 0.000 description 7
- 239000004763 nomex Substances 0.000 description 7
- 229920001778 nylon Polymers 0.000 description 7
- 229920002239 polyacrylonitrile Polymers 0.000 description 6
- 239000004926 polymethyl methacrylate Substances 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 6
- 239000004809 Teflon Substances 0.000 description 5
- 229920006362 Teflon® Polymers 0.000 description 5
- 229920000508 Vectran Polymers 0.000 description 5
- 239000004979 Vectran Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 5
- 239000004408 titanium dioxide Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 238000007756 gravure coating Methods 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 229910020352 SiPO4 Inorganic materials 0.000 description 3
- 229910020343 SiS2 Inorganic materials 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229920002732 Polyanhydride Polymers 0.000 description 2
- 229920000265 Polyparaphenylene Polymers 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920001021 polysulfide Polymers 0.000 description 2
- 239000005077 polysulfide Substances 0.000 description 2
- 150000008117 polysulfides Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 229920001291 polyvinyl halide Polymers 0.000 description 2
- 239000005033 polyvinylidene chloride Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical compound FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- 229940087305 limonene Drugs 0.000 description 1
- XMGQYMWWDOXHJM-UHFFFAOYSA-N limonene Natural products CC(=C)C1CCC(C)=CC1 XMGQYMWWDOXHJM-UHFFFAOYSA-N 0.000 description 1
- 235000001510 limonene Nutrition 0.000 description 1
- 239000004750 melt-blown nonwoven Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920005569 poly(vinylidene fluoride-co-hexafluoropropylene) Polymers 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 229920001290 polyvinyl ester Polymers 0.000 description 1
- 229920006215 polyvinyl ketone Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
-
- 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
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
- B32B27/205—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents the fillers creating voids or cavities, e.g. by stretching
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- 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
- B32B27/32—Layered products comprising a layer 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
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of 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
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
-
- 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
-
- 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
-
- 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
- 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
- H01M50/42—Acrylic resins
-
- 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
- H01M50/423—Polyamide resins
-
- 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
- H01M50/426—Fluorocarbon polymers
-
- 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
- H01M50/44—Fibrous 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
- H01M50/451—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
- H01M50/454—Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
-
- 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
- H01M50/489—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
- 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
-
- 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
- B32B2250/24—All layers being polymeric
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0223—Vinyl resin fibres
- B32B2262/0238—Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
- B32B2262/0269—Aromatic polyamide fibres
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
- B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/12—Conjugate fibres, e.g. core/sheath or side-by-side
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/14—Mixture of at least two fibres made of different materials
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/14—Mixture of at least two fibres made of different materials
- B32B2262/144—Non-woven fabric
-
- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/102—Oxide or hydroxide
-
- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
-
- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/12—Mixture of at least two particles made of different materials
-
- 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
- B32B2274/00—Thermoplastic elastomer material
-
- 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
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/206—Insulating
-
- 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
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Inorganic Chemistry (AREA)
- Cell Separators (AREA)
- Materials Engineering (AREA)
- Laminated Bodies (AREA)
- Nonwoven Fabrics (AREA)
Abstract
公开了电池隔板和方法。所述电池隔板可用于锂电池。所述隔板可包括层压到经涂覆的非织造材料上的微孔膜。所述涂层可以包含聚合物和可选的填料或颗粒。所述方法可包括以下步骤:展开微孔膜和非织造材料,层压非织造物和微孔膜,以及在层压之前和/或之后涂覆非织造物。
Description
本申请为分案申请,原优先权日是2015年8月17日;原国际申请日是2016年8月17日;原国际申请号为PCT/US2016/047270;进入中国国家阶段的日期是2018年4月13日,中国申请号是201680060026.2;原发明名称是《改进的电池隔板和相关方法》。
相关申请的交叉引用
本申请要求于2015年8月17日提交的美国临时专利申请No.62/205,805的优先权和权益,其全部通过引用并入本文。
发明领域
本公开或发明至少选定的实施方式涉及新的、改进的或优化的隔板、复合材料、包括它们的电池和/或相关方法。在至少一个实施方式中,电池隔板包括在其上层压非织造物的微孔膜。本发明的电池隔板还可包括没有在其上层压非织造物的微孔膜。所述电池隔板可用于锂电池或电池单元、锂离子电池或锂二次电池、电池组、模块、系统、装置、车辆等。根据至少某些实施方式,本公开或发明涉及新颖或改进的电池隔板、层压隔板、复合隔板、涂覆层压隔板、涂覆复合隔板、锂电池隔板,和/或制造这种隔板的方法,和/或使用这种隔板或包含这种隔板的电池的方法。根据至少某些选定的实施方式,本公开或发明涉及新型或改进的锂电池隔板,其包括层压到经涂覆的非织造物上的微孔膜,涂层可含有聚合物和可选的填料或颗粒,和/或者涉及包括以下步骤的方法:展开微孔膜和非织造物,层压非织造物和微孔膜,以及在层压之前或之后涂覆非织造物。
背景技术
电池隔板通常是已知的。锂电池的电池隔板也是众所周知的。
锂电池通常包括阳极、阴极、在阳极和阴极之间的隔板、在阳极和阴极之间离子连通的电解质(例如,在一些情况下,电解质可以流过且位于隔板中)、以及容纳前述组件的容器。
隔板是电池的关键部件。除其他事项外,隔板保持阳极和阴极不接触(例如,避免施加在容器上或通过容器施加的外力以及避免电极之间的枝晶生长)。隔板提供电绝缘。电极之间的任何接触允许电子直接在电极之间传输,这可能导致电短路。隔板通常是微孔的,并且在电池(例如锂电池)的充电和放电循环期间为电解质中的离子提供从一个电极流到另一个电极的途径。隔板在电池的安全性和性能方面发挥关键作用。
随着对更好电池需求的增加,隔板将成为可以实现增强电池性能的一个组件。
美国专利No.6881515,通过引用并入本文,公开了一种用于聚合物电池的隔板,其具有在两侧涂覆有凝胶成形聚合物(gel-forming polymer)和增塑剂的微孔膜。凝胶成形聚合物可以是聚偏二氟乙烯(PVDF)及其共聚物。
美国专利No.7087343,通过引用并入本文,公开了一种用于锂电池的电池隔板,其具有粘合到高熔融完整性非织造物上的关断微孔膜。
仍然存在对新的或改进的电池隔板的需求,其可以改善至少某些电池(例如至少某些锂电池)的性能和安全性。
发明内容
本公开或发明至少选定的实施方式可以解决上述需要、问题或顾虑,和/或可以提供和/或涉及新的、改进或优化的隔板、复合材料、层压板、包括它们的电池,和/或相关的方法。在至少一个实施方式中,电池隔板包括在其上层压非织造物的微孔膜。本发明的电池隔板还可以包括没有在其上层压非织造物的微孔膜。电池隔板可用于锂电池或电池单元、锂离子电池或锂二次电池、电池组、模块、系统、装置、车辆等。
根据至少某些实施方式,本公开或发明涉及新型或改进的电池隔板、层压隔板、复合隔板、涂覆层压隔板、涂覆复合隔板、锂电池隔板,和/或制造这种隔板的方法,和/或使用这种隔板或包含这种隔板的电池的方法。根据至少某些选定的实施方式,本公开或发明涉及新型或改进的锂电池隔板,其包括层压到经涂覆的非织造物上的微孔膜,所述涂层可含有聚合物和可选的填料或颗粒,和/或涉及包括以下步骤的方法:展开微孔膜和非织造物,层压非织造物和微孔膜,以及在层压之前或之后涂覆非织造物。
本发明至少选定的实施方式涉及新的、改进的或优化的隔板、复合材料、包括它们的电池和/或相关方法。在一个实施方式中,电池隔板包括在其上层压非织造物的微孔膜。本发明的电池隔板还可包括没有在其上层压非织造物的微孔膜。所述电池隔板可用于锂电池或电池单元、锂离子电池或锂二次电池、电池组、模块、系统、装置、车辆等。根据至少选定的实施方式,本公开或发明涉及新型或改进的电池隔板、层压隔板、复合隔板、涂覆层压隔板、涂覆复合隔板、锂电池隔板,和/或制造这种隔板的方法,和/或使用这种隔板或包含这种隔板的电池的方法。根据至少某些实施方式,本公开或发明涉及新型或改进的锂电池隔板,其包括层压到经涂覆的非织造物上的微孔膜,所述涂层可含有聚合物和可选的填料或颗粒,和/或涉及包括以下步骤的方法:展开微孔膜和非织造物,层压非织造物和微孔膜,以及在层压之前或之后涂覆非织造物。
根据至少可能优选的实施方式、方面或目的,本发明的隔板可以通过提高刺穿强度、降低开裂性(例如增加横机强度)、改善高温熔体完整性、提高拉伸强度(机器方向和机器横向方向)和/或具有关断功能来获得改进的电池隔板。
附图说明
为了说明本发明至少某些示例性实施方式或方面,在附图中示出目前优选的形式;然而,应该理解,本发明不限于所示的精确布置和手段。
图1是本发明的一个实施方式的横截面的示意图,该实施方式是单面层压组件(非织造物和膜)。
图2是本发明的另一个实施方式的横截面的示意图,该实施方式是双面层压组件(非织造物和膜)。
图3是涉及单面涂覆的层或组件的本发明另一个实施方式的横截面的示意图。
图4是涉及双面涂覆的层或组件的本发明另一个实施方式的横截面的示意图。
图5是涉及双面膜和涂层的本发明另一个实施方式的横截面的示意图。
图6是大体上沿着图1中的截面线6-6截取的纤维的横截面图。
图7是并列型双组分纤维的横截面图。
图8是海岛型双组分纤维的横截面图。
图9是涉及单面涂覆的膜的本发明另一个实施方式的横截面的示意图。
图10是涉及双面涂覆的膜的本发明另一个实施方式的横截面的示意图。
图11是涉及单面涂覆的膜的本发明另一个实施方式的横截面的示意图。
图12是涉及双面涂覆的膜的本发明另一个实施方式的横截面的示意图。
图13是制造单面或双面层压涂覆电池隔板的方法的实施方式的示意图。
图14是制造单面或双面层压涂覆电池隔板的方法的另一个实施方式的示意图。
图15是制造单面或双面涂覆电池隔板的方法的另一个实施方式的示意图。
图16是制造单面或双面涂覆电池隔板的方法的另一个实施方式的示意图。
发明详细说明
本公开或本发明至少选定的实施方式涉及新的、改进的或优化的隔板、复合材料、包括它们的电池和/或相关方法。在至少一个实施方式中,所述电池隔板包括在其上层压非织造物的微孔膜。本发明的电池隔板还可以包括没有在其上层压非织造物的微孔膜。所述电池隔板可用于锂电池或电池单元、锂离子电池或锂二次电池、电池组、模块、系统、装置、车辆等。根据至少某些实施方式,本公开或发明涉及新型或改进的电池隔板、层压隔板、复合隔板、涂覆层压隔板、涂覆复合隔板、锂电池隔板,和/或制造这种隔板的方法,和/或使用这种隔板或包含这种隔板的电池的方法。根据至少某些选定的实施方式,本公开或发明涉及新型或改进的锂电池隔板,其包括层压到经涂覆的非织造物的微孔膜,并且涂层可含有聚合物和可选的填料或颗粒,和/或涉及包括以下步骤的方法:展开微孔膜和非织造物,层压非织造物和微孔膜,以及在层压之前或之后涂覆非织造物。
本发明至少选定的实施方式涉及新的、改进的或优化的隔板、复合材料、包括它们的电池和/或相关方法。在一个实施方式中,所述电池隔板包括在其上层压非织造物的微孔膜。本发明的电池隔板还可以包括没有在其上层压非织造物的微孔膜。所述电池隔板可用于锂电池或电池单元、锂离子电池或锂二次电池、电池组、模块、系统、装置、车辆等。根据至少选择的实施方式,本公开或发明涉及新型或改进的电池隔板、层压隔板、复合隔板、涂覆层压隔板、涂覆复合隔板、锂电池隔板和/或制造这种隔板的方法,和/或使用这种隔板或包含这种隔板的电池的方法。根据至少某些实施方式,本公开或发明涉及新型或改进的锂电池隔板,其包括层压到经涂覆的非织造物的微孔膜,所述涂层可含有聚合物和可选的填料或颗粒,和/或涉及包括以下步骤的方法:展开微孔膜和非织造物,层压非织造物和微孔膜,以及在层压之前或之后涂覆非织造物。
在至少一个实施方式中,本发明的隔板可以通过提高刺穿强度、降低撕裂性(例如增加横机强度)、改善高温熔体完整性、提高拉伸强度(既在机器方向又在横机方向)和/或具有关断功能来获得改善的电池隔板。
在图1中,显示了隔板8作为本发明的第一示例性实施方式,隔板8包括粘附到非织造物12表面上的涂层10,该非织造物12被热层压形成界面结合部15结合到微孔膜14。在本实施方式中,涂层10粘附到非织造物材料或层12的表面。该涂层可以完全或部分浸渍到非织造物12中。
在图2中,显示了隔板9作为本发明的第二示例性实施方式,隔板9包括粘附到相应的非织造物层12表面上的相应涂层10,非织造物层12被热层压到微孔膜14的相应侧面上,形成界面结合部15。
在图3中,显示了隔板11作为本发明的第三示例性实施方式,隔板11包括粘附到非织造物12的表面的涂层10,所述非织造物12的表面被层压或粘合到微孔膜14表面粘附的涂层16的一侧。
在图4中,显示了隔板13作为本发明的第四示例性实施方式,隔板13包括粘附到相应非织造物12的表面上的相应涂层10,所述相应非织造物12被层压到微孔膜14的两侧或表面上的相应涂层16。
在图5中,显示了隔板25作为本发明的第五示例性实施方式,隔板25包括粘附到非织造物12的两个表面上的相应涂层10,并且非织造物12被双面层压到相应的微孔膜14上,每个微孔膜具有相应的涂层16粘附到相应的微孔膜14的相应侧面或表面。
非织造物组件、材料或层12可以由天然纤维、合成纤维、聚合物纤维和/或玻璃纤维制成。在一个实施方式中,所述纤维聚合物可以选自:聚烯烃、聚酯、氟聚合物(例如PVDF)、聚酰胺(例如尼龙)、聚芳酰胺(KEVLAR、NOMEX)、丙烯酸、PVC或其他聚合物。在另一个实施方式中,聚酯可以选自聚对苯二甲酸乙二醇酯(PET)、聚对苯二甲酸丁二醇酯(PBT)、聚萘二甲酸乙二醇酯(PEN)、聚对苯二甲酸丙二醇酯(PTT),前述的共聚物以及前述的共混物。
非织造物12可以是梳理非织造物、针刺非织造物、气流成网非织造物、湿法非织造物、射流喷网(水刺)非织造物、纺粘非织造物、熔纺非织造物、电纺非织造物、电吹非织造物、熔喷非织造物及其组合。所述非织造物可以由人造短纤维和/或连续长丝制成。在一个实施方式中,所述非织造物可具有小于1密耳(25.4微米)的厚度。在另一个实施例中,所述非织造物可以具有小于0.5密耳(12.7微米)的厚度。在又一个实施方式中,非织造物可以具有小于0.2密耳(5微米)的厚度。
包含非织造物12的纤维可具有小于约10微米的直径。在另一个实施方式中,所述纤维的直径可以小于约1微米。在另一个实施例中,所述纤维的直径可以小于约0.1微米。在另一个实施例中,所述纤维的直径可以小于约0.01微米。在另一个实施方式中,所述纤维的直径可以小于约0.001微米。
膜14和/或非织造物12可以进一步包括一个或多个涂层10和/或16。涂层10或16可以覆盖非织造物的表面,或者所述涂层可以覆盖非织造物的表面并且部分地或者大部分浸渍到非织造物的开放或多孔结构中。所述涂层可以部分地覆盖或完全覆盖包含非织造物的非织造纤维的表面。
涂层10或16可以由天然、合成或聚合物材料制成,在一个实施方式中,选自聚乙烯、聚丙烯、PET、聚偏二氟乙烯(PVDF)、聚四氟乙烯(PTFE)、聚偏二氯乙烯、丙烯酸、聚氯乙烯(PVC)、聚丙烯腈(PAN)、聚甲基丙烯酸甲酯(PMMA)、聚酰胺、苯乙烯丁二烯共聚物、乙烯苯乙烯共聚物、苯乙烯-异戊二烯共聚物、乙烯-丙烯酸共聚物、聚二烯、聚烷烃聚乙烯酮、聚卤乙烯、聚乙烯腈、聚苯乙烯、聚亚苯基、聚氧化物、聚碳酸酯、聚酯、聚酐、聚氨酯、聚磺酸酯、聚硫化物、聚砜,它们的共聚物以及含有前述物质的共混物。在另一个实施方式中,聚合物材料可以选自聚偏二氟乙烯(PVDF)、其共聚物和含有前述物质的共混物。在又一个实施方式中,一种特别有用的聚合物是聚偏二氟乙烯(PVDF)-六氟丙烯(PVDF:HFP)共聚物和/或聚氯乙烯及其混合物。
涂层10或16可以包括天然的、合成的、聚合物、玻璃或陶瓷的填料或颗粒。所述填料可以在施加到非织造物之前混合到涂层中。
所述填料可以是惰性的、热稳定的颗粒。所述填料可以是选自二氧化硅(SiO2)、氧化铝(Al2O3)、碳酸钙(CaCO3)、二氧化钛(TiO2)、SiS2、SiPO4或玻璃及其混合物的陶瓷颗粒。在另一个实施方式中,所述填料可以是选自二氧化硅(SiO2),氧化铝(Al2O3)、碳酸钙(CaCO3)、二氧化钛(TiO2)及其混合物的陶瓷颗粒。在又一个实施方式中,填料可以是选自二氧化硅(SiO2)、氧化铝(Al2O3)、碳酸钙(CaCO3)及其混合物的陶瓷颗粒。
所述填料可以具有在约0.001微米至约2微米范围内的平均粒度。在另一个实施方式中,所述填料的平均粒度可以在约0.01微米至2微米的范围内。美国专利No.6,432,586(其全部内容通过引用并入本文)公开了多种陶瓷涂覆的隔板。另外,美国专利No.2014/0045033(其全部内容通过引用并入本文)公开了用于微孔电池隔板的多种含陶瓷颗粒的聚合物涂层。
陶瓷涂层可以包括一种或多种聚合物粘合剂,一种或多种类型的无机陶瓷颗粒和水基(水性)或非水溶剂。这些涂层可以使用多种技术施加,例如但不限于浸涂、刮刀、凹版印刷、帘幕、喷涂等。此外,各种已知的含陶瓷颗粒的聚合物涂层可以以不同的厚度,如2至6微米的厚度,施加到微孔电池隔板、非织造物层、隔膜或其组合的一侧或两侧上。
非织造组件、材料或层12可以由双组分(异质纤维)纤维或非双组分纤维制成。所述双组分纤维可以选自皮芯型纤维18(参见图6-芯20和鞘22)、并列型纤维18'(参见图7-一侧18'a和另一侧18'b)、海岛型纤维18”(参见图8-岛18”a和海18”b)以及它们的组合。所述双组分纤维可具有低熔融温度组分和高熔融温度组分。低熔点组分具有低于高熔融温度组分的熔融温度。在一个实施方式中,所述低熔融温度组分可以是聚烯烃。在一个实施方式中,所述聚烯烃可以选自:聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物和前述的共混物。所述高熔融温度组分可以选自:聚偏二氟乙烯(PVDF)、聚四氟乙烯(PTFE)、聚偏二氯乙烯、丙烯酸、聚氯乙烯(PVC)、聚丙烯腈(PAN)、聚甲基丙烯酸甲酯(PMMA)、聚酰胺、苯乙烯丁二烯共聚物、乙烯苯乙烯共聚物、苯乙烯-异戊二烯共聚物、乙烯-丙烯酸共聚物、聚二烯、聚烷烃聚乙烯酮、聚卤乙烯、聚乙烯腈、聚乙烯酯、聚苯乙烯、聚亚苯基、聚氧化乙烯、聚碳酸酯、聚酯、聚酐、聚氨酯、聚磺酸盐、聚硫化物、聚砜、它们的共聚物以及含有前述物质的共混物。在另一个实施方式中,所述双组分纤维可具有聚烯烃鞘和由选自以下的聚合物制成的芯:聚酯、聚酰胺(例如尼龙)、氟聚合物(例如TEFLON)、芳族聚酰胺(KEVLAR、NOMEX)、液晶聚合物(VECTRAN)、聚苯并咪唑(PBI)、聚苯并双恶唑(PBO)。在又一个实施方式中,所述双组分纤维可具有聚乙烯鞘和由选自以下的聚合物制成的芯:聚酯、聚酰胺(例如尼龙)、氟聚合物(例如TEFLON)、芳族聚酰胺(KEVLAR、NOMEX)、液晶聚合物(VECTRAN)、聚苯并咪唑(PBI)、聚苯并双恶唑(PBO)。在又一个实施方式中,双组分纤维可具有聚烯烃鞘和聚酯芯。在又一个实施方式中,所述双组分纤维可具有聚乙烯鞘和聚对苯二甲酸乙二醇酯(PET)芯。
图1、2、3、4和5中的隔板或隔板组件或膜8、9、11、13和25分别可以是微孔的并且可以具有在约20-95%范围内的孔隙率。
微孔膜或层14可具有约0.02至约2微米范围内的平均孔径。微孔膜14可具有约0.04至约0.5微米范围内的平均孔径。
图9、10、11和12中示出的本发明另外的示例性实施例可以不包含非织造物层或组件12,但可以在膜14的一侧或两侧上包括一个或多个涂层10和/或16。膜14和/或涂层10和/或16可以包括一种或多种纤维、填料或颗粒。所述填料可以在施加到微孔膜14之前混合到涂层中。所述填料可以是惰性的、热稳定的纤维或颗粒。所述填料可以是选自二氧化硅(SiO2)、氧化铝(Al2O3)、碳酸钙(CaCO3)、二氧化钛(TiO2)、SiS2、SiPO4或玻璃及其混合物的陶瓷颗粒。在另一个实施方式中,填料可以是选自二氧化硅(SiO2)、氧化铝(Al2O3)、碳酸钙(CaCO3)、二氧化钛(TiO2)及其混合物的陶瓷颗粒。在又一个实施方式中,填料可以是选自二氧化硅(SiO2)、氧化铝(Al2O3)、碳酸钙(CaCO3)及其混合物的陶瓷颗粒。
所述填料可以具有在约0.001微米至约2微米范围内的平均粒度。在另一个实施方式中,所述填料的平均粒度可以在约0.01微米至约2微米的范围内。
微孔膜14可具有约37至150秒范围内的ASTM Gurley数。所述微孔膜的Gurley数可以在约30至80秒的范围内。ASTM Gurley数指10cc空气再12.2英寸水柱下通过一平方英寸膜片所需的时间。
微孔膜14可以具有任何数量的层。在一些实施例中,所述微孔膜具有单层。在单层的情况下,所述单层可以由聚烯烃制成。所述聚烯烃可以选自聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物和前述的共混物。在另一个实施方式中,所述聚烯烃可以选自:聚乙烯(PE)、聚丙烯(PP)、前述的共聚物和前述的共混物。在又一个实施方式中,所述聚烯烃可以选自:聚乙烯(PE)、前述的共聚物和前述的共混物。在又一个实施方式中,所述单层的聚烯烃可以是聚乙烯(PE)。
微孔膜14可以具有多层。例如,所述微孔膜可以具有两层。在这种情况下,每层可以由不同的聚合物制成。一层可以由聚烯烃制成。所述聚烯烃可以选自聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物和前述的共混物。在另一个实施方式中,所述聚烯烃可以选自:聚乙烯(PE)、前述的共聚物和前述的共混物。在又一个实施例中,所述聚烯烃可以是聚乙烯(PE)。另一层可以由聚烯烃制成。所述聚烯烃可以选自聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物和前述的共混物。在另一个实施方式中,所述聚烯烃可以选自:聚丙烯(PP)、前述的共聚物和前述的共混物。在又一个实施例中,所述聚烯烃可以是聚丙烯(PP)。在又一个实施方式中,一层可以由聚乙烯基聚合物制成,而另一层可以由聚丙烯基聚合物制成。
所述微孔膜可以具有三层或更多层。至少一层可以由不同的聚合物制成。并且,至少两个层可以由相同的聚合物制成。外层可以由相同的聚合物制成,内层可以由不同的聚合物制成。所述相同的聚合物可以是聚烯烃。所述聚烯烃可以选自聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物和前述的共混物。在另一个实施方式中,所述聚烯烃可以选自:聚丙烯(PP)、前述的共聚物和前述的共混物。在又一个实施方式中,所述聚烯烃是聚丙烯(PP)。所述不同的聚合物可以是聚烯烃。所述聚烯烃可以选自:聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物和前述的共混物。在另一个实施方式中,所述聚烯烃可以选自:聚乙烯(PE)、前述的共聚物和前述的共混物。在又一个实施例中,所述聚烯烃可以是聚乙烯(PE)。所述层可以分层为聚丙烯(PP)/聚乙烯(PE)/聚丙烯(PP)或聚乙烯(PE)/聚丙烯(PP)/聚乙烯(PE)。
制造电池隔板的层压或粘附实施方式的示例性第一方法示于图13中。层压为隔板的制造提供以下益处:均匀性或厚度、非织造物对微孔膜的粘附性、非织造物和微孔膜的冷凝以及界面层15(见图1和2)的形成。
在图13中,制造隔板8的方法的第一示例性实施方式示出了制造层压电池隔板的方法100,其可以包括以下步骤:1)展开无纺物102;2)展开微孔膜104;3)用涂层材料106涂覆非织造物;以及4)将经涂覆的非织造物层压到微孔膜104上以形成复合材料或层压材料110。此外,该方法可以包括以下可选的步骤:形成层压隔板112卷,将层压隔板112切割成较窄的宽度,以及卷绕狭缝或狭缝隔板114。
再次参照图13,制造层压电池隔板的方法的第二示例性实施例可以包括以下步骤:1)展开第一和第二非织造物102;2)展开微孔膜104;3)用涂层材料106涂覆非织造物;以及4)将相应的经涂覆的非织造物层压到微孔膜104的每一侧形成层压体110以制造隔板9。
层压可以通过压延进行。压延是通过使非织造物和微孔膜通过两个辊或滚筒如两个加热辊的辊隙进行的,其中加热和加压使得非织造物和微孔膜相邻的表面(聚合物)在图1和图2的界面结合部15熔合。另外,该方法可包括将层压隔板112切成较窄宽度和卷绕狭缝隔板114的可选步骤。所述涂层材料可包含填料或颗粒。所述涂层可以通过喷涂、浸渍、接触涂覆、凹版涂覆和/或刷涂施加。所述涂层可施加到非织造物的一侧或两侧,或施加到接触非织造物的微孔膜上,或微孔膜的两侧,或施加到非织造物和/或膜的一侧或两侧。
在图14中,示出了制造涂覆的层压电池隔板的方法的另一示例性实施方式。该方法200包括以下步骤:1)展开微孔膜204;2)展开非织造物材料202;3)用涂层材料206涂覆非织造物材料202;4)用涂层材料208涂覆微孔膜204;5)层压经涂覆的微孔膜204和经涂覆的非织造物材料202以制造层压或粘合组件或层压板210,其可作为隔板或膜11(见图3)。另外,用206涂覆的相应非织造物材料202可以层压到用208涂覆的微孔膜204的两侧上以制造层压膜210,其可作为隔板或膜13(见图4)。此外,在两侧涂覆有涂层206的非织造物材料202可以在两侧上层压到相应的涂覆膜204、208以制造层压膜210,其可作为隔板或膜25(参见图5)。所述涂层可以通过喷涂、浸渍、接触涂覆、凹版式涂覆和/或刷涂施加。另外,该方法可以包括将经涂覆的隔板212切割成较窄的宽度以及卷绕狭缝隔板214的可选步骤。
在图15中,示出了制造涂覆电池隔板的方法的另一示例性实施方式。该方法300包括以下步骤:1)展开微孔膜304;2)用涂层材料308涂覆微孔膜304;3)用涂层306涂覆涂层材料304以制造涂层膜310,其可作为隔板或膜17(见图9)。另外,膜304可以用涂层308在两侧上涂覆,然后涂覆涂层材料306以制造涂层膜310,其可作为隔板或膜19(见图10)。所述涂层可以通过喷涂、浸渍、接触涂覆、凹版印刷涂覆和/或刷涂施加。另外,该方法可以包括将涂覆材料或隔板312切割成较窄宽度以及卷绕狭缝隔板314的可选步骤。
在图16中,示出了制造涂层电池隔板的方法的另一示例性实施方式。该方法400包括以下步骤:1)展开微孔膜404;2)用涂层材料406涂覆微孔膜404以制造涂层膜410,其可作为隔板或膜21(见图11)。另外,膜404可以在两侧用涂层406涂覆以制成涂层膜410,其可作为隔板或膜23(见图12)。所述涂层可以通过喷涂、浸渍、接触涂覆、凹版印刷涂覆和/或刷涂施加。另外,该方法可以包括将涂覆的隔板412切割成较窄的宽度以及卷绕狭缝隔板414的可选步骤。
公开了电池隔板和方法。所述电池隔板可用于锂电池。所述隔板可包括层压到经涂覆的非织造物材料上的微孔膜。所述涂层可以包含聚合物和可选的填料或颗粒。所述方法可包括以下步骤:展开微孔膜和非织造物材料,层压非织造物和微孔膜,以及在层压之前和/或之后涂覆非织造物。
本发明或发明的至少选定的实施方式、方面或目的涉及和/或可以提供新的、改进的或优化的隔板、复合材料、包括它们的电池和/或相关方法。在至少一个实施方式中,电池隔板包括在其上层压非织造物材料的微孔膜。本发明的电池隔板还可以包括没有在其上层压非织造物材料的微孔膜。所述电池隔板可用于锂电池或电池单元、锂离子电池或锂二次电池、电池组、模块、系统、装置、车辆等。根据至少某些实施方式,本公开或发明涉及新型或改进的电池隔板、层压隔板、复合隔板、涂覆层压隔板、涂覆复合隔板、锂电池隔板和/或制造这种隔板的方法,和/或使用这种隔板或包含这种隔板的电池的方法。根据至少某些选定的实施方式,本公开或发明涉及新型或改进的锂电池隔板,其包括层压到经涂覆的非织造物材料的微孔膜,所述涂层可包含聚合物和可选的填料或颗粒,和/或涉及包括以下步骤的方法:展开微孔膜和非织造物材料,层压非织造物和微孔膜,以及在层压之前或之后涂覆非织造物材料。
本公开或发明的至少选定的实施方式、方面或目的涉及和/或可提供新的、改进的或优化的隔板、复合材料、包括它们的电池和/或相关方法,包括例如,一种电池隔板,包括:
在其上层压非织造物的微孔膜,和/或所述电池隔板是用于锂电池的电池隔板,所述电池隔板是用于锂离子电池的电池隔板,所述电池隔板是用于锂二次电池的电池隔板,和/或所述非织造物由聚合物纤维制成,所述聚合物选自:聚烯烃、聚酯、氟聚合物(例如PVDF)、聚酰胺(例如尼龙)、聚芳酰胺(KEVLAR、NOMEX)、丙烯酸、PVC或其他聚合物,所述聚酯选自聚对苯二甲酸乙二醇酯(PET)、聚对苯二甲酸丁二醇酯(PBT)、聚萘二甲酸乙二醇酯(PEN)、聚对苯二甲酸丙二醇酯(PTT)、前述的共聚物和前述的混合物,所述非织造物由双组分(异质(hetero-fil))纤维制成,所述双组分纤维选自皮芯型纤维、并列型纤维、海岛型纤维及其组合,所述双组分纤维具有低熔融温度组分和高熔融温度组分,所述低熔点组分的熔融温度低于所述高熔融温度组分,所述低熔融温度组分为聚烯烃,所述聚烯烃选自聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物和前述的共混物,所述高熔融温度组分选自:聚酯、聚酰胺(例如尼龙)、氟聚合物(例如TEFLON)、芳族聚酰胺(例如KEVLAR、NOMEX)、液晶聚合物(VECTRAN)、聚苯并咪唑(PBI)、聚苯并二唑(PBO),所述双组分纤维具有聚烯烃鞘和由选自以下的聚合物制成的芯:聚酯、聚酰胺(如尼龙)、氟聚合物(如TEFLON)、芳族聚酰胺(KEVLAR、NOMEX)、液晶聚合物(VECTRAN)、聚苯并咪唑(PBI)、聚苯并二唑(PBO)、所述双组分纤维具有聚乙烯鞘和由选自以下的聚合物制成的芯:聚酯、聚酰胺(例如尼龙)、氟聚合物(例如TEFLON)、芳族聚酰胺(KEVLAR、NOMEX)、液晶聚合物(VECTRAN)、聚苯并咪唑(PBI)、聚苯并二唑(PBO),所述双组分纤维具有聚烯烃鞘和聚酯芯,所述双组分纤维具有聚乙烯鞘和聚对苯二甲酸乙二醇酯(PET)芯,所述非织造物是梳理非织造物、针刺非织造物、气流成网非织造物、湿法成网非织造物、射流喷网(水刺)非织造物、纺粘非织造物、熔纺非织造物、电纺非织造物及其组合,所述非织造物由短纤维和/或连续长丝制成,所述非织造物的厚度小于1密耳(25.4微米),所述非织造物的厚度小于0.5密耳(12.7微米),所述非织造物材料的厚度小于0.25密耳(6.4微米),和/或所述非织造物还包含涂层,所述涂层涂覆非织造物的纤维表面,所述涂层部分或完全覆盖非织造物的纤维表面,所述涂层覆盖非织造物的表面,所述涂层部分地覆盖非织造物的表面,所述涂层完全浸渍到所述非织造物的内部空隙中,所述涂层由铁电聚合物制成,所述铁电聚合物选自聚环氧乙烷(PEO)、聚四氟乙烯(PTFE)、聚氨酯(PU)、聚丙烯腈(PAN)、聚甲基丙烯酸甲酯(PMMA)、聚四甘醇二丙烯酸酯、聚偏二氟乙烯(PVDF)、其共聚物和含有前述物质的共混物,所述铁电聚合物选自聚偏二氟乙烯(PVDF)、其共聚物和含有前述物质的共混物,所述聚偏二氟乙烯(PVDF)共聚物选自聚偏二氟乙烯:六氟丙烯(PVDF:HFP)和聚偏二氟乙烯:三氟氯乙烯(PVDF:CTFE),所述涂层还包括填料,所述填料在施加到所述非织造物材料之前混合到所述涂层中,所述填料在将所述涂层施加到所述非织造物材料上之后添加到所述涂层上,所述填料为惰性热稳定颗粒,所述填料是选自二氧化硅(SiO2)、氧化铝(Al2O3)、碳酸钙(CaCO3)、二氧化钛(TiO2)、SiS2、SiPO4及其混合物的陶瓷颗粒,所述填料为选自二氧化硅(SiO2)、氧化铝(Al2O3)、碳酸钙(CaCO3)、二氧化钛(TiO2)及其混合物的陶瓷颗粒,所述填料为选自二氧化硅(SiO2)、氧化铝(Al2O3)、碳酸钙(CaCO3)及其混合物的陶瓷颗粒,所述填料具有0.001微米至25微米、最优选0.01微米至2微米的平均粒径,所述填料具有0.01微米至2微米的平均粒径,和/或所述微孔膜的孔隙率为约20-80%,所述微孔膜的孔隙率为约28-60%,所述微孔膜的平均孔径为约0.02微米至2微米,所述微孔膜的平均孔径为约0.08至0.5微米,所述微孔膜的Gurley数在约15至150秒的范围内,所述微孔膜的Gurley数在约30到80秒的范围内,所述微孔膜具有单层,所述单层由聚烯烃制成,所述聚烯烃选自:聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物以及前述的共混物,所述聚烯烃选自:聚乙烯(PE)、聚丙烯(PP)、前述的共聚物和前述的共混物,所述聚烯烃选自:聚乙烯(PE)、前述的共聚物和前述的共混物,所述聚烯烃是聚乙烯(PE),所述微孔膜具有多层,所述微孔膜具有两层,每层由不同聚合物制成,其中一层由聚烯烃制成,所述聚烯烃选自:聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物和前述的共混物,所述聚烯烃选自:聚乙烯(PE),前述的共聚物和前述的共混物,所述聚烯烃为聚乙烯(PE),另一层由聚烯烃制成,其中所述聚烯烃选自聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物和前述的共混物,所述聚烯烃选自:聚丙烯(PP)、前述的共聚物和前述的共混物,所述聚烯烃为聚丙烯(PP),其中一层由聚乙烯基聚合物制成并且另一层由聚丙烯基聚合物制成,所述微孔膜具有三层,至少两层由不同聚合物制成,至少两层由同一种聚合物制成,所述外层由同一聚合物制成并且所述内层由不同的聚合物制成,所述同一聚合物为聚烯烃,所述聚烯烃选自聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物以及前述的共混物,所述聚烯烃选自:聚丙烯(PP),前述的共聚物和前述的共混物,所述聚烯烃为聚丙烯(PP),所述不同的聚合物为聚烯烃,所述聚烯烃选自:聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物以及前述的共混物,所述聚烯烃选自:聚乙烯(PE)、前述的共聚物和前述的共混物,所述聚烯烃为聚乙烯(PE),和/或所述层被层合为聚丙烯(PP)/聚乙烯(PE)/聚丙烯(PP);和/或制造层压电池隔板的方法,包括以下步骤:
展开非织造物,
展开微孔膜,
用涂层材料涂覆非织造物,以及
将经涂覆的非织造物层压到微孔膜,和/或所述涂层材料含有铁电材料,所述涂层材料含有铁电材料和填料,和/或所述涂层是将涂层材料喷涂、浸涂、接触涂覆和/或刷涂于其上;和/或制造层压电池隔板的方法,包括以下步骤:
展开非织造物,
展开微孔膜,
将非织造物层压到微孔膜,以及
用涂层材料涂覆非织造物,和/或所述涂层材料含有铁电材料,所述涂层材料含有铁电材料和填料,和/或所述涂覆是将涂层材料喷涂、浸渍、接触涂覆和/或刷涂于其上;和/或如本文所示、公开和/或所述的电池隔板、电池和/或方法。
公开了电池隔板和方法。所述电池隔板可用于锂电池。所述隔板可包括层压到经涂覆的非织造物上的微孔膜。所述涂层可以包括聚合物和可选的填料或颗粒。所述方法可以包括以下步骤:展开微孔膜和非织造物材料,层压非织造物和微孔膜,以及在层压之前和/或之后涂覆非织造物材料。
在不脱离本发明的精神和基本属性的情况下,本发明可以以其他形式实施,因此,当指出本发明的范围时,应该参考所附的权利要求书,而不是前述说明书。
Claims (24)
1.一种用于锂电池的电池隔板,其包括:
至少一个聚烯烃微孔膜或层;
至少一个非织造物层或材料,其在所述微孔膜或层的至少一侧上,所述非织造物层或材料结合至所述微孔膜或层;或者所述非织造物层或材料层压在所述微孔膜或层上;或者所述非织造物层或材料层压至所述微孔膜或层;以及
涂层,其粘附到所述非织造物层或材料的表面上。
2.如权利要求1所述的电池隔板,其中,所述电池隔板是用于二次锂电池、锂离子电池、或锂聚合物电池的电池隔板。
3.如权利要求1所述的电池隔板,其中,所述非织造物由聚合物纤维制成,并且所述聚合物选自:聚烯烃、聚酯、氟聚合物、聚酰胺、聚芳酰胺、丙烯酸和PVC。
4.如权利要求3所述的电池隔板,其中,所述聚酯选自:聚对苯二甲酸乙二醇酯(PET)、聚对苯二甲酸丁二醇酯(PBT)、聚萘二甲酸乙二醇酯(PEN)、聚对苯二甲酸丙二醇酯(PTT)、前述的共聚物、和前述的混合物。
5.如权利要求1所述的电池隔板,其中,所述非织造物由双组分纤维制成。
6.如权利要求5所述的电池隔板,其中,所述双组分纤维选自:皮芯型纤维、并列型纤维、海岛型纤维、及其组合。
7.如权利要求5所述的电池隔板,其中,所述双组分纤维具有低熔融温度组分和高熔融温度组分,所述低熔融温度组分具有低于所述高熔融温度组分的熔融温度。
8.如权利要求7所述的电池隔板,其中,
所述低熔融温度组分选自:聚烯烃、聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物、和前述的共混物,以及
所述高熔融温度组分选自:聚酯、聚酰胺、氟聚合物、芳族聚酰胺、液晶聚合物、聚苯并咪唑(PBI)、聚苯并二唑(PBO)、前述的共聚物、和前述的共混物。
9.如权利要求1所述的电池隔板,其中,所述非织造物是梳理非织造物、针刺非织造物、气流成网非织造物、湿法成网非织造物、射流喷网非织造物、水刺非织造物、纺粘非织造物、熔纺非织造物、电纺非织造物、及其组合。
10.如权利要求1所述的电池隔板,其中,所述涂层覆盖纤维表面或非织造物表面。
11.如权利要求1所述的电池隔板,其中,所述涂层由铁电聚合物制成。
12.如权利要求1所述的电池隔板,其中,所述涂层还包括填料。
13.如权利要求1所述的电池隔板,其中,所述微孔膜或层具有:
约20-80%范围内的孔隙率,
约0.02至2微米范围内的平均孔径,以及
约15至150秒范围内的Gurley值。
14.一种电池、电池单元、电池组、或模块,其包含如权利要求1所述的隔板。
15.一种装置、产品、系统、或车辆,其包含如权利要求14所述的电池、电池单元、电池组、或模块。
16.一种层压电池隔板的制造方法,其包括以下步骤:
开卷非织造物,
开卷聚合物微孔膜,
用涂层材料涂覆非织造物;以及
将所述非织造物层压到所述微孔膜,
其中,在层压之前或层压之后,涂覆所述非织造物。
17.如权利要求16所述的方法,其中,所述涂层材料包含铁电聚合物材料。
18.如权利要求16所述的方法,其中,实施涂覆是将实施涂层材料喷涂、浸渍、接触涂覆和/或刷涂于其上。
19.一种层压电池隔板的制造方法,其包括以下步骤:
开卷非织造物,
开卷聚烯烃微孔膜,
将所述非织造物层压至所述微孔膜,以及
用涂层材料涂覆所述非织造物。
20.如权利要求19所述的方法,其中,所述涂层材料包含铁电材料。
21.如权利要求19所述的方法,其中,所述涂覆是将实施涂层材料喷涂、浸渍、接触涂覆和/或刷涂于其上。
22.如权利要求1所述的电池隔板,其中,所述至少一个聚烯烃微孔膜或层具有单层,所述单层由聚烯烃制成,所述聚烯烃选自:聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物、和前述的共混物;所述聚烯烃选自:聚乙烯(PE)、聚丙烯(PP)、前述的共聚物、和前述的共混物;所述聚烯烃选自:聚乙烯(PE)、其共聚物、和其共混物;或者,所述聚烯烃是聚乙烯(PE)。
23.如权利要求1所述的电池隔板,其中,所述至少一个聚烯烃微孔膜或层由聚烯烃制成,所述聚烯烃选自:聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物、和前述的共混物;所述聚烯烃选自:聚乙烯(PE)、聚丙烯(PP)、前述的共聚物、和前述的共混物;所述聚烯烃选自:聚乙烯(PE)、其共聚物、和其共混物;或者,所述聚烯烃是聚乙烯(PE)。
24.如权利要求1所述的电池隔板,其中,所述至少一个聚烯烃微孔膜或层具有多层,所述多层由聚烯烃制成,所述聚烯烃选自:聚乙烯(PE)、聚丙烯(PP)、聚甲基戊烯(PMP)、聚丁烯(PB)、前述的共聚物、和前述的共混物;所述聚烯烃选自:聚乙烯(PE)、聚丙烯(PP)、前述的共聚物、和前述的共混物;所述聚烯烃选自:聚乙烯(PE)、其共聚物、和其共混物;或者,所述聚烯烃是聚乙烯(PE)。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201562205805P | 2015-08-17 | 2015-08-17 | |
US62/205,805 | 2015-08-17 | ||
PCT/US2016/047270 WO2017031159A1 (en) | 2015-08-17 | 2016-08-17 | Improved battery separators and related methods |
CN201680060026.2A CN108140787B (zh) | 2015-08-17 | 2016-08-17 | 改进的电池隔板和相关方法 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201680060026.2A Division CN108140787B (zh) | 2015-08-17 | 2016-08-17 | 改进的电池隔板和相关方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114171851A true CN114171851A (zh) | 2022-03-11 |
Family
ID=58051320
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201680060026.2A Active CN108140787B (zh) | 2015-08-17 | 2016-08-17 | 改进的电池隔板和相关方法 |
CN202111487555.XA Pending CN114171851A (zh) | 2015-08-17 | 2016-08-17 | 改进的电池隔板和相关方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201680060026.2A Active CN108140787B (zh) | 2015-08-17 | 2016-08-17 | 改进的电池隔板和相关方法 |
Country Status (5)
Country | Link |
---|---|
US (3) | US11239532B2 (zh) |
JP (4) | JP2018530106A (zh) |
KR (2) | KR20240137708A (zh) |
CN (2) | CN108140787B (zh) |
WO (1) | WO2017031159A1 (zh) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20130043186A (ko) * | 2010-08-02 | 2013-04-29 | 셀가드 엘엘씨 | 높은 용융 온도 미세다공성 리튬-이온 2차 전지 세퍼레이터 및 제조방법 및 용도 |
EP3175028A1 (en) * | 2014-07-30 | 2017-06-07 | SABIC Global Technologies B.V. | Spunbond polycarbonate resin filter media |
US9293748B1 (en) * | 2014-09-15 | 2016-03-22 | Hollingsworth & Vose Company | Multi-region battery separators |
KR102205116B1 (ko) * | 2016-09-13 | 2021-01-20 | 허베이 겔렉 뉴 에너지 머티리얼 사이언스앤테크놀러지 컴퍼니 리미티드 | 내고온 다층 복합 리튬이온 배터리 격막 및 그 코팅장치와 제조방법 |
US20190386276A1 (en) * | 2017-03-06 | 2019-12-19 | Council Of Scientific And Industrial Research | Porous polybenzimidazole as separator for lithium ion batteries |
CN106981609B (zh) * | 2017-03-27 | 2020-04-21 | 天能电池集团股份有限公司 | 一种铅蓄电池隔板及铅蓄电池 |
CN111463391A (zh) * | 2018-01-22 | 2020-07-28 | 赛尔格有限责任公司 | 改善的涂覆的分隔件、锂电池及相关方法 |
JP6906485B2 (ja) * | 2018-02-26 | 2021-07-21 | 株式会社ダイセル | 二次電池用セパレータ |
WO2019195605A1 (en) * | 2018-04-04 | 2019-10-10 | Ab Systems, Inc. (Us) | Glass fiber composite separator |
CN110911615A (zh) * | 2019-11-20 | 2020-03-24 | 芜湖天弋能源科技有限公司 | 一种耐高温性锂离子电池隔膜及其制备方法及其制备的锂离子电池 |
CN111180639B (zh) * | 2020-02-25 | 2022-03-11 | 江苏厚生新能源科技有限公司 | 一种高循环寿命锂离子电池隔膜及其制备方法 |
CN111691069B (zh) * | 2020-05-18 | 2021-10-08 | 苏州大学 | 一种耐穿刺纤维复合膜及其制备方法 |
CN115566361A (zh) * | 2021-07-02 | 2023-01-03 | 宁德时代新能源科技股份有限公司 | 隔离膜、锂离子电池、电池模组、电池包及用电装置 |
CN115101888B (zh) * | 2022-06-16 | 2024-03-26 | 广东工业大学 | 一种多级孔纤维布基聚合物复合膜及其制备方法和应用 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001162742A (ja) * | 1999-12-10 | 2001-06-19 | Tonen Chem Corp | 積層複合膜 |
US20020168564A1 (en) * | 2001-05-08 | 2002-11-14 | Celgard Inc. | Separator for polymer battery |
CN1577917A (zh) * | 2003-07-15 | 2005-02-09 | 思凯德公司 | 锂离子电池用高熔融完整性的电池隔板 |
JP2008041606A (ja) * | 2006-08-10 | 2008-02-21 | Matsushita Electric Ind Co Ltd | 非水電解質電池用セパレータ及び非水電解質電池 |
CN103460444A (zh) * | 2011-04-06 | 2013-12-18 | 株式会社Lg化学 | 隔膜及包含该隔膜的电化学装置 |
CN104124427A (zh) * | 2004-02-07 | 2014-10-29 | 株式会社Lg化学 | 电极、包含该电极的电化学装置和制造该电极的方法 |
Family Cites Families (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2983732B2 (ja) * | 1991-11-29 | 1999-11-29 | 三洋電機株式会社 | 電池用多層式セパレータ |
JP2992598B2 (ja) * | 1996-06-12 | 1999-12-20 | 東洋クロス株式会社 | リチウムイオン電池 |
SE9603157L (sv) | 1996-08-30 | 1998-03-01 | Sintek Int Ab | Hyllställ carrousel 260 |
CN1186829C (zh) * | 1997-01-16 | 2005-01-26 | 三菱制纸株式会社 | 非水电解液电池用隔片、用该隔片的非水电解液电池及制备非水电解液电池用隔片的方法 |
KR100527322B1 (ko) | 1997-05-06 | 2006-01-27 | 소니 가부시끼 가이샤 | 폴리머겔전해질형성용시트,이를사용한폴리머겔전해질및그의제법 |
US6696373B2 (en) | 1999-01-08 | 2004-02-24 | Bba Nonwovens Simpsonville, Inc. | Durable hydrophilic nonwoven webs and articles formed therefrom |
EP2418713A1 (en) * | 2000-03-31 | 2012-02-15 | Sony Corporation | Separator, gelated electrolyte, non-aqueous electrolyte, electrode and non-aqueous electrolyte cell empolying the same |
US6432586B1 (en) | 2000-04-10 | 2002-08-13 | Celgard Inc. | Separator for a high energy rechargeable lithium battery |
US6749961B1 (en) * | 2000-04-10 | 2004-06-15 | Celgard Inc. | Shutdown battery separator made with a blend of polymer and oligomer |
JP2003323878A (ja) * | 2002-04-26 | 2003-11-14 | Japan Storage Battery Co Ltd | 複合シート、その製造方法、及びその複合シートを用いた非水電解質二次電池 |
US7000811B2 (en) | 2003-07-02 | 2006-02-21 | Keith Gilstrap | Handlebar/stem mounted bicycle wheel holding device |
US20050031943A1 (en) * | 2003-08-07 | 2005-02-10 | Call Ronald W. | Battery separator and method of making same |
JP2005259639A (ja) * | 2004-03-15 | 2005-09-22 | Matsushita Electric Ind Co Ltd | リチウム二次電池およびその製造方法 |
JP2005276503A (ja) * | 2004-03-23 | 2005-10-06 | Mitsubishi Electric Corp | 電池用セパレータ及びそれを用いた電池 |
US7112389B1 (en) | 2005-09-30 | 2006-09-26 | E. I. Du Pont De Nemours And Company | Batteries including improved fine fiber separators |
US9214697B2 (en) * | 2007-07-18 | 2015-12-15 | Dai-Ichi Kogyo Seiyaku Co., Ltd. | Lithium secondary battery |
JP5130011B2 (ja) * | 2007-09-21 | 2013-01-30 | 株式会社クラレ | セパレータの製造方法 |
WO2011065765A2 (ko) * | 2009-11-27 | 2011-06-03 | 주식회사 엘지화학 | 세퍼레이터의 제조방법, 이로부터 형성된 세퍼레이터 및 이를 포함하는 전기화학소자 |
JP2011132278A (ja) * | 2009-12-22 | 2011-07-07 | Sony Corp | 高分子材料の製造方法 |
DE102010005066A1 (de) | 2010-01-13 | 2011-07-14 | Knauer, Dieter, 73240 | Strukturelement |
US9044716B2 (en) * | 2010-01-13 | 2015-06-02 | Toray Battery Separator Film Co., Ltd. | Microporous membranes and methods for producing and using such membranes |
US8139343B2 (en) * | 2010-03-08 | 2012-03-20 | Wisys Technology Foundation | Electrical energy storage device containing an electroactive separator |
US20130196208A1 (en) * | 2010-10-01 | 2013-08-01 | Mitsubishi Plastics, Inc. | Laminated porous film, separator for battery, and battery |
WO2012094251A2 (en) | 2011-01-04 | 2012-07-12 | Massachusetts Institute Of Technology | Device and method for sampling bodily fluid for medical analytes in ultra low concentrations |
KR101283487B1 (ko) * | 2011-07-20 | 2013-07-12 | 주식회사 엘지화학 | 세퍼레이터, 그 제조방법 및 이를 구비한 전기화학소자 |
WO2013051189A1 (ja) * | 2011-10-07 | 2013-04-11 | パナソニック株式会社 | 固体高分子型燃料電池用の電解質膜とその製造方法および固体高分子型燃料電池 |
US20130115837A1 (en) | 2011-11-09 | 2013-05-09 | Dale S. Kitchen | Nanofiber nonwovens and nanofiber nonwoven composites containing roped fiber bundles |
DE102011120474A1 (de) * | 2011-12-08 | 2013-06-13 | Treofan Germany Gmbh & Co. Kg | Hochporöse Separator- Folie mit Beschichtung |
US8999602B2 (en) * | 2012-02-27 | 2015-04-07 | Basf Se | Separators for electrochemical cells comprising polymer particles |
JP5966439B2 (ja) | 2012-02-29 | 2016-08-10 | 大日本印刷株式会社 | 積層体およびその製造方法 |
KR101977076B1 (ko) | 2012-07-25 | 2019-05-10 | 엘지전자 주식회사 | 이동 단말기 |
CN108767177B (zh) | 2012-08-07 | 2022-10-11 | 赛尔格有限责任公司 | 用于锂离子电池的改进的隔膜和相关方法 |
ES2977141T3 (es) * | 2012-11-30 | 2024-08-19 | Lg Energy Solution Ltd | Tela no tejida formada a partir de fibra recubierta con compuesto polimérico aglutinante orgánico, dispositivo electroquímico que comprende tela no tejida y procedimiento para fabricar tela no tejida |
US8974946B2 (en) * | 2013-03-15 | 2015-03-10 | Gm Global Technology Operations | Coating for separator or cathode of lithium—sulfur or silicon—sulfur battery |
JP2014225372A (ja) | 2013-05-16 | 2014-12-04 | 三菱製紙株式会社 | 電池用セパレータ |
CN103390741B (zh) * | 2013-07-26 | 2015-12-02 | 常州大学 | 有机/无机复合多孔涂层的隔膜及其制备方法 |
US10002719B2 (en) * | 2014-04-21 | 2018-06-19 | Lg Chem, Ltd. | Separator having binder layer, and electrochemical device comprising the separator and method of preparing the separator |
CN104466065A (zh) * | 2014-12-23 | 2015-03-25 | 常熟高嘉能源科技有限公司 | 一种锂电池隔膜 |
-
2016
- 2016-08-17 CN CN201680060026.2A patent/CN108140787B/zh active Active
- 2016-08-17 KR KR1020247030083A patent/KR20240137708A/ko active Application Filing
- 2016-08-17 JP JP2018508221A patent/JP2018530106A/ja active Pending
- 2016-08-17 US US15/238,850 patent/US11239532B2/en active Active
- 2016-08-17 KR KR1020187006719A patent/KR20180031782A/ko not_active IP Right Cessation
- 2016-08-17 CN CN202111487555.XA patent/CN114171851A/zh active Pending
- 2016-08-17 WO PCT/US2016/047270 patent/WO2017031159A1/en active Application Filing
-
2021
- 2021-05-10 JP JP2021079959A patent/JP2021122019A/ja active Pending
- 2021-12-23 US US17/560,309 patent/US11813830B2/en active Active
-
2023
- 2023-02-08 JP JP2023017641A patent/JP7504246B2/ja active Active
- 2023-10-08 US US18/377,801 patent/US20240034023A1/en active Pending
-
2024
- 2024-06-10 JP JP2024093578A patent/JP2024113151A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001162742A (ja) * | 1999-12-10 | 2001-06-19 | Tonen Chem Corp | 積層複合膜 |
US20020168564A1 (en) * | 2001-05-08 | 2002-11-14 | Celgard Inc. | Separator for polymer battery |
CN1577917A (zh) * | 2003-07-15 | 2005-02-09 | 思凯德公司 | 锂离子电池用高熔融完整性的电池隔板 |
CN104124427A (zh) * | 2004-02-07 | 2014-10-29 | 株式会社Lg化学 | 电极、包含该电极的电化学装置和制造该电极的方法 |
JP2008041606A (ja) * | 2006-08-10 | 2008-02-21 | Matsushita Electric Ind Co Ltd | 非水電解質電池用セパレータ及び非水電解質電池 |
CN103460444A (zh) * | 2011-04-06 | 2013-12-18 | 株式会社Lg化学 | 隔膜及包含该隔膜的电化学装置 |
Also Published As
Publication number | Publication date |
---|---|
US11239532B2 (en) | 2022-02-01 |
JP2021122019A (ja) | 2021-08-26 |
US20240034023A1 (en) | 2024-02-01 |
CN108140787B (zh) | 2022-01-04 |
JP2023058602A (ja) | 2023-04-25 |
KR20240137708A (ko) | 2024-09-20 |
WO2017031159A1 (en) | 2017-02-23 |
US20220115742A1 (en) | 2022-04-14 |
US11813830B2 (en) | 2023-11-14 |
JP7504246B2 (ja) | 2024-06-21 |
JP2024113151A (ja) | 2024-08-21 |
US20170062785A1 (en) | 2017-03-02 |
CN108140787A (zh) | 2018-06-08 |
KR20180031782A (ko) | 2018-03-28 |
JP2018530106A (ja) | 2018-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108140787B (zh) | 改进的电池隔板和相关方法 | |
KR101281037B1 (ko) | 세퍼레이터 및 이를 구비하는 전기화학소자 | |
US9601740B2 (en) | Composite porous separation membrane having shut-down function, method of manufacturing same, and secondary batteries using same | |
JP6208663B2 (ja) | セパレータの製造方法、その方法で形成されたセパレータ、及びそれを含む電気化学素子 | |
RU2339120C1 (ru) | Микропористая мембрана с обработанной поверхностью и электрохимическое устройство, изготовленное с ее использованием | |
JP5655088B2 (ja) | セパレータの製造方法、その方法によって形成されたセパレータ、及びそれを含む電気化学素子 | |
TWI618279B (zh) | 分隔件材料 | |
CN102754243B (zh) | 制造隔板的方法、由该方法制造的隔板及制造包含该隔板的电化学设备的方法 | |
TW201528591A (zh) | 分隔件及包含其之電化學裝置 | |
KR20120108212A (ko) | 전극조립체 및 이의 제조방법 | |
US20130084483A1 (en) | Separator and electrochemical device comprising the same | |
KR20140082261A (ko) | 삼층 분리막, 이를 포함하는 전기화학소자, 및 상기 분리막의 제조방법 | |
KR101446162B1 (ko) | 세퍼레이터 및 이를 구비한 전기화학소자 | |
KR101491058B1 (ko) | 세퍼레이터의 제조장치 및 이를 이용한 제조방법 | |
KR20200129650A (ko) | 단위 셀 제조 장치 및 방법 | |
KR20210119785A (ko) | 단위 셀 제조 장치 및 방법 | |
KR20200137557A (ko) | 이차전지용 단일층 프리스탠딩 분리막 및 해도사를 이용한 상기 분리막의 제조방법 | |
KR20200137560A (ko) | 이차전지용 단일층 프리스탠딩 분리막 및 해도사를 이용한 상기 분리막의 제조방법 | |
KR20160049748A (ko) | 비대칭 구조의 단위셀 제조방법 및 그 제조방법에 의해 제조된 단위셀 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |