KR19990077422A - 삼중층배터리격리판 - Google Patents
삼중층배터리격리판 Download PDFInfo
- Publication number
- KR19990077422A KR19990077422A KR1019990004792A KR19990004792A KR19990077422A KR 19990077422 A KR19990077422 A KR 19990077422A KR 1019990004792 A KR1019990004792 A KR 1019990004792A KR 19990004792 A KR19990004792 A KR 19990004792A KR 19990077422 A KR19990077422 A KR 19990077422A
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- shutdown
- microporous
- strength
- battery separator
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 34
- 238000000614 phase inversion technique Methods 0.000 claims abstract description 10
- 239000002243 precursor Substances 0.000 claims description 25
- -1 polypropylene Polymers 0.000 claims description 22
- 229920001155 polypropylene Polymers 0.000 claims description 18
- 239000004743 Polypropylene Substances 0.000 claims description 17
- 239000012982 microporous membrane Substances 0.000 claims description 5
- 229920000092 linear low density polyethylene Polymers 0.000 claims 2
- 239000004707 linear low-density polyethylene Substances 0.000 claims 2
- 239000012528 membrane Substances 0.000 abstract description 24
- 229920000642 polymer Polymers 0.000 description 19
- 239000012632 extractable Substances 0.000 description 15
- 239000000203 mixture Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 11
- 239000010408 film Substances 0.000 description 10
- 230000008018 melting Effects 0.000 description 9
- 238000002844 melting Methods 0.000 description 9
- 239000004698 Polyethylene Substances 0.000 description 8
- 229920001577 copolymer Polymers 0.000 description 8
- 229920000573 polyethylene Polymers 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000002904 solvent Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000000137 annealing Methods 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- WXCZUWHSJWOTRV-UHFFFAOYSA-N but-1-ene;ethene Chemical compound C=C.CCC=C WXCZUWHSJWOTRV-UHFFFAOYSA-N 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002667 nucleating agent Substances 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 229920005597 polymer membrane Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920013683 Celanese Polymers 0.000 description 1
- PYGXAGIECVVIOZ-UHFFFAOYSA-N Dibutyl decanedioate Chemical compound CCCCOC(=O)CCCCCCCCC(=O)OCCCC PYGXAGIECVVIOZ-UHFFFAOYSA-N 0.000 description 1
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- ALSOCDGAZNNNME-UHFFFAOYSA-N ethene;hex-1-ene Chemical compound C=C.CCCCC=C ALSOCDGAZNNNME-UHFFFAOYSA-N 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/005—Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0032—Ancillary operations in connection with laminating processes increasing 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
- 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
- B32B5/18—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 features of a layer of foamed 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
-
- 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
- H01M50/449—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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
-
- 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
-
- 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)
- Mechanical Engineering (AREA)
- Cell Separators (AREA)
- Laminated Bodies (AREA)
- Primary Cells (AREA)
Abstract
Description
Claims (9)
- 상 전화 방법에 의해서 제조된 미공성 막인 셧다운 층을 샌드위칭하는, 신장 방법에 의해서 제조된 제 1 및 제 3 미공성 강도층을 포함하는 배터리 격리판.
- 제 1 항에 있어서, 약 110 ℃의 셧다운 온도를 갖는 배터리 격리판.
- 제 1 항에 있어서, 1 mil 이하의 두께를 갖는 배터리 격리판.
- 제 1 항에 있어서, 강도층이 폴리프로필렌으로 이루어지고 셧다운 층이 선형 저밀도 폴리에틸렌으로 이루어지는 배터리 격리판.
- 미공성 강도층 막을 신장 방법에 의해서 형성시키고;미공성 셧다운 층 막을 상 전화 방법에 의해서 형성시킨 다음;강도층 막과 셧다운 층 막을 결합시켜 제 1 및 제 3 미공성 강도층 막과 제 2 미공성 셧다운 층 막을 갖는 삼중층 배터리 격리판을 형성시키는 단계를 포함하는 삼중층 배터리 격리판 제조방법.
- 제 5 항에 있어서, 배터리 격리판이 약 110 ℃ 이하의 셧다운 온도를 갖는 삼중층 배터리 격리판 제조방법.
- 제 5 항에 있어서, 배터리 격리판이 1 mil 이하의 두께를 갖는 삼중층 배터리 격리판 제조방법.
- 제 5 항에 있어서, 강도층이 폴리프로필렌으로 이루어지고 셧다운 층이 선형 저밀도 폴리에틸렌으로 이루어지는 삼중층 배터리 격리판 제조방법.
- 제 5 항에 있어서, 미공성 셧다운 층 막이 셧다운 층 전구체를 미공성 강도층 막의 한 층 상에 압출시키고 셧다운 층 전구체를 그 위에 추출시킴으로써 형성되는 삼중층 배터리 격리판 제조방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9/041,163 | 1998-03-12 | ||
US09/041,163 US6180280B1 (en) | 1998-03-12 | 1998-03-12 | Trilayer battery separator |
Publications (1)
Publication Number | Publication Date |
---|---|
KR19990077422A true KR19990077422A (ko) | 1999-10-25 |
Family
ID=21915083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019990004792A KR19990077422A (ko) | 1998-03-12 | 1999-02-11 | 삼중층배터리격리판 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6180280B1 (ko) |
EP (1) | EP0942480B1 (ko) |
JP (1) | JPH11317212A (ko) |
KR (1) | KR19990077422A (ko) |
CA (1) | CA2259786A1 (ko) |
DE (1) | DE69907551T2 (ko) |
TW (1) | TW429645B (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100409019B1 (ko) * | 2001-06-13 | 2003-12-06 | 주식회사 엘지화학 | 다층 미세 기공막 및 그 제조방법 |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE10033322B4 (de) * | 2000-07-03 | 2005-08-04 | HP-chemie Pelzer Ltd. Industrial Estate | Verfahren zur Herstellung von Verbundelementen und Verbundelement |
JP4931163B2 (ja) * | 2001-04-24 | 2012-05-16 | 旭化成イーマテリアルズ株式会社 | ポリオレフィン製微多孔膜 |
US8007940B2 (en) * | 2001-12-11 | 2011-08-30 | Eveready Battery Company, Inc. | High discharge capacity lithium battery |
US20050112462A1 (en) * | 2003-11-21 | 2005-05-26 | Marple Jack W. | High discharge capacity lithium battery |
US7595130B2 (en) * | 2003-11-06 | 2009-09-29 | Ube Industries, Ltd. | Battery separator and lithium secondary battery |
US8283071B2 (en) | 2003-11-21 | 2012-10-09 | Eveready Battery Company, Inc. | High discharge capacity lithium battery |
US20050233214A1 (en) * | 2003-11-21 | 2005-10-20 | Marple Jack W | High discharge capacity lithium battery |
US8124274B2 (en) * | 2003-11-21 | 2012-02-28 | Eveready Battery Company, Inc. | High discharge capacity lithium battery |
WO2007010878A1 (ja) * | 2005-07-15 | 2007-01-25 | Tonen Chemical Corporation | ポリオレフィン多層微多孔膜及び電池用セパレータ |
JP4626568B2 (ja) * | 2005-07-29 | 2011-02-09 | ソニー株式会社 | リチウムイオン二次電池 |
EP1920920B1 (en) * | 2005-08-25 | 2013-12-04 | Toray Battery Separator Film Co., Ltd. | Polyethylene multilayer microporous membrane, battery separator using same, and battery |
JP4546910B2 (ja) * | 2005-09-22 | 2010-09-22 | 三菱樹脂株式会社 | 多孔積層体の製造方法および多孔積層体 |
WO2007049568A1 (ja) * | 2005-10-24 | 2007-05-03 | Tonen Chemical Corporation | ポリオレフィン多層微多孔膜及びその製造方法並びに電池用セパレータ |
US20070238017A1 (en) | 2006-04-07 | 2007-10-11 | Celgard Llc | Multilayer separator exhibiting improved strength and stability |
WO2009014845A2 (en) * | 2007-06-28 | 2009-01-29 | Ultralife Corporation | High capacity and high rate lithium cells with cfx-mno2 hybrid cathode |
US8003204B2 (en) | 2007-12-26 | 2011-08-23 | Sk Energy Co., Ltd. | Microporous polyolefin multi layer film and preparing method thereof |
KR101437852B1 (ko) | 2007-12-26 | 2014-09-04 | 에스케이이노베이션 주식회사 | 다층 폴리올레핀계 미세다공막 및 그 제조방법 |
US20100068609A1 (en) * | 2008-09-15 | 2010-03-18 | Ultralife Corportion | Hybrid cell construction for improved performance |
PL2708358T3 (pl) * | 2009-03-09 | 2018-09-28 | Asahi Kasei Kabushiki Kaisha | Mikroporowata membrana poliolefinowa |
US20100255376A1 (en) | 2009-03-19 | 2010-10-07 | Carbon Micro Battery Corporation | Gas phase deposition of battery separators |
JP5726879B2 (ja) | 2010-01-13 | 2015-06-03 | 東レバッテリーセパレータフィルム株式会社 | 微多孔膜、及びその製造方法及び使用方法 |
JP5629542B2 (ja) * | 2010-10-04 | 2014-11-19 | 旭化成イーマテリアルズ株式会社 | ポリオレフィン製微多孔膜 |
TWI491096B (zh) | 2010-12-06 | 2015-07-01 | Ind Tech Res Inst | 多層電池隔離膜及其製造方法 |
US20130130125A1 (en) * | 2011-05-16 | 2013-05-23 | Ray L. Hauser | Cross-linked battery electrode separator |
JP6346986B1 (ja) * | 2016-12-20 | 2018-06-20 | 旭化成株式会社 | 蓄電デバイス用セパレータ並びにこれを用いた積層体、捲回体及び二次電池 |
CN115803291A (zh) * | 2020-05-01 | 2023-03-14 | 国际人造丝公司 | 具有降低的关闭温度的膜和用于制造其的聚合物组合物 |
CN115275505A (zh) * | 2022-05-16 | 2022-11-01 | 烟台泰和新材料股份有限公司 | 一种低闭孔高破膜的芳纶锂电池隔膜及其制备方法 |
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US4247498A (en) | 1976-08-30 | 1981-01-27 | Akzona Incorporated | Methods for making microporous products |
US4539256A (en) | 1982-09-09 | 1985-09-03 | Minnesota Mining And Manufacturing Co. | Microporous sheet material, method of making and articles made therewith |
US4650730A (en) | 1985-05-16 | 1987-03-17 | W. R. Grace & Co. | Battery separator |
US5281491A (en) | 1991-12-20 | 1994-01-25 | W. R. Grace & Co. | Battery separator |
US5240655A (en) * | 1991-12-20 | 1993-08-31 | W. R. Grace & Co.-Conn. | Process of making a battery separator |
EP0682376B1 (en) * | 1994-05-12 | 2000-01-26 | Ube Industries, Ltd. | Porous multi-layer film |
JP3011309B2 (ja) | 1994-05-12 | 2000-02-21 | 宇部興産株式会社 | 電池用セパレ−タ及びその製法 |
US5565281A (en) | 1994-12-02 | 1996-10-15 | Hoechst Celanese Corporation | Shutdown, bilayer battery separator |
TW297171B (ko) * | 1994-12-20 | 1997-02-01 | Hoechst Celanese Corp | |
JPH08244152A (ja) | 1995-03-15 | 1996-09-24 | Nitto Denko Corp | 多孔質フィルムおよびその製造法 |
JPH08250097A (ja) | 1995-03-15 | 1996-09-27 | Kureha Chem Ind Co Ltd | 電気化学的装置用極間セパレーター |
US5922492A (en) * | 1996-06-04 | 1999-07-13 | Tonen Chemical Corporation | Microporous polyolefin battery separator |
US5952120A (en) * | 1997-04-15 | 1999-09-14 | Celgard Llc | Method of making a trilayer battery separator |
-
1998
- 1998-03-12 US US09/041,163 patent/US6180280B1/en not_active Expired - Fee Related
-
1999
- 1999-01-14 TW TW088100519A patent/TW429645B/zh not_active IP Right Cessation
- 1999-01-19 CA CA002259786A patent/CA2259786A1/en not_active Abandoned
- 1999-02-11 KR KR1019990004792A patent/KR19990077422A/ko not_active Application Discontinuation
- 1999-03-05 DE DE69907551T patent/DE69907551T2/de not_active Expired - Fee Related
- 1999-03-05 EP EP99104437A patent/EP0942480B1/en not_active Expired - Lifetime
- 1999-03-12 JP JP11066702A patent/JPH11317212A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100409019B1 (ko) * | 2001-06-13 | 2003-12-06 | 주식회사 엘지화학 | 다층 미세 기공막 및 그 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
DE69907551T2 (de) | 2004-03-04 |
EP0942480A1 (en) | 1999-09-15 |
CA2259786A1 (en) | 1999-09-12 |
US6180280B1 (en) | 2001-01-30 |
TW429645B (en) | 2001-04-11 |
DE69907551D1 (de) | 2003-06-12 |
EP0942480B1 (en) | 2003-05-07 |
JPH11317212A (ja) | 1999-11-16 |
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