WO1998038687A1 - Copolymers of vinylidene fluoride and hexafluoropropylene having reduced extractable content and improved solution clarity - Google Patents
Copolymers of vinylidene fluoride and hexafluoropropylene having reduced extractable content and improved solution clarity Download PDFInfo
- Publication number
- WO1998038687A1 WO1998038687A1 PCT/US1998/004071 US9804071W WO9838687A1 WO 1998038687 A1 WO1998038687 A1 WO 1998038687A1 US 9804071 W US9804071 W US 9804071W WO 9838687 A1 WO9838687 A1 WO 9838687A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vinylidene fluoride
- copolymers
- hfp
- vdf
- hexafluoropropylene
- Prior art date
Links
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 title claims abstract description 163
- 229920001577 copolymer Polymers 0.000 title claims abstract description 152
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 title claims abstract description 133
- 239000012632 extractable Substances 0.000 claims abstract description 46
- 239000000178 monomer Substances 0.000 claims abstract description 40
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- 238000002844 melting Methods 0.000 claims description 20
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- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 claims description 12
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- 239000000243 solution Substances 0.000 description 61
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- 238000000113 differential scanning calorimetry Methods 0.000 description 11
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- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical group CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 3
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 3
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- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 125000005634 peroxydicarbonate group Chemical group 0.000 description 3
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- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical class S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 2
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- 150000002576 ketones Chemical class 0.000 description 1
- TYQCGQRIZGCHNB-JLAZNSOCSA-N l-ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(O)=C(O)C1=O TYQCGQRIZGCHNB-JLAZNSOCSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000409 membrane extraction Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000570 polyether Chemical class 0.000 description 1
- 229920000131 polyvinylidene Polymers 0.000 description 1
- WFRUBUQWJYMMRQ-UHFFFAOYSA-M potassium;1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonate Chemical compound [K+].[O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WFRUBUQWJYMMRQ-UHFFFAOYSA-M 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229920006126 semicrystalline polymer Polymers 0.000 description 1
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229940102001 zinc bromide Drugs 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
- 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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
-
- 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
- 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
- H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
-
- 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
- H01M2300/0085—Immobilising or gelification of electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
-
- 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
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU9903748A HUP9903748A3 (en) | 1997-02-28 | 1998-02-27 | Improved batteries containing copolymers of vinylidene fluoride |
| JP53795098A JP2002513506A (ja) | 1997-02-28 | 1998-02-27 | 低減された抽出分含有率及び改善された溶液清澄性を有する、弗化ビニリデンとヘキサフルオルプロピレンとのコポリマー |
| CNB988002078A CN1311577C (zh) | 1997-02-28 | 1998-02-27 | 电化学电池 |
| KR1019980708803A KR100537303B1 (ko) | 1997-02-28 | 1998-02-27 | 비닐리덴 플루오라이드와 헥사플루오로프로필렌과의공중합체 및 이를 포함하는 전기화학전지 |
| EP98908864A EP0907976A4 (en) | 1997-02-28 | 1998-02-27 | COPOLYMERS OF VINYLIDENE FLUORIDE AND HEXAFLUOROPROPYLENE HAVING REDUCED EXTRACTIBLE CONSTITUENT CONTENT AND IMPROVED SOLUTION TRANSPARENCY |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3834697P | 1997-02-28 | 1997-02-28 | |
| US3101598A | 1998-02-26 | 1998-02-26 | |
| US60/038,346 | 1998-02-26 | ||
| US09/031,015 | 1998-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998038687A1 true WO1998038687A1 (en) | 1998-09-03 |
Family
ID=26706722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1998/004071 WO1998038687A1 (en) | 1997-02-28 | 1998-02-27 | Copolymers of vinylidene fluoride and hexafluoropropylene having reduced extractable content and improved solution clarity |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0907976A4 (zh) |
| JP (1) | JP2002513506A (zh) |
| KR (1) | KR100537303B1 (zh) |
| CN (1) | CN1311577C (zh) |
| CA (1) | CA2251648A1 (zh) |
| HU (1) | HUP9903748A3 (zh) |
| ID (1) | ID20294A (zh) |
| WO (1) | WO1998038687A1 (zh) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2346729A (en) * | 1999-02-10 | 2000-08-16 | Aea Technology Plc | Polymer electrolyte |
| EP1028479A2 (en) * | 1999-02-05 | 2000-08-16 | Ausimont S.p.A. | Electrolyte polymers for lithium rechargeable batteries |
| WO2002011230A1 (en) * | 2000-07-31 | 2002-02-07 | Accentus Plc | Polymer electrolyte |
| EP1229597A2 (de) * | 2001-02-03 | 2002-08-07 | Microbatterie GmbH | Verfahren zur Herstellung von Elektrodenfolien |
| US6506523B1 (en) * | 1998-04-27 | 2003-01-14 | Sony Corporation | Solid electrolyte secondary battery |
| WO2004019344A1 (ja) * | 2002-08-26 | 2004-03-04 | Nippon Oil Corporation | イオン伝導性フィルム |
| US6824927B1 (en) * | 1997-12-26 | 2004-11-30 | Kureha Kagaku Kogyo Kabushiki Kaisha | Polymer electrolyte containing a vinylidene fluoride copolymer and a nonaqueous electrolytic solution, and nonaqueous battery containing the polymer electrolyte |
| WO2006001788A1 (en) * | 2004-06-09 | 2006-01-05 | The Gillette Company | Electrochemical cells |
| US7066970B2 (en) | 2003-05-09 | 2006-06-27 | The Gillette Company | Electrochemical cells |
| US8303609B2 (en) | 2000-09-29 | 2012-11-06 | Cordis Corporation | Coated medical devices |
| US9114198B2 (en) | 2003-11-19 | 2015-08-25 | Advanced Cardiovascular Systems, Inc. | Biologically beneficial coatings for implantable devices containing fluorinated polymers and methods for fabricating the same |
| USRE45744E1 (en) | 2003-12-01 | 2015-10-13 | Abbott Cardiovascular Systems Inc. | Temperature controlled crimping |
| US9175162B2 (en) | 2003-05-08 | 2015-11-03 | Advanced Cardiovascular Systems, Inc. | Methods for forming stent coatings comprising hydrophilic additives |
| US20160126600A1 (en) * | 2004-12-01 | 2016-05-05 | Sony Corporation | Battery |
| EP3694020A4 (en) * | 2018-06-20 | 2021-04-14 | Lg Chem, Ltd. | SEPARATOR FOR AN ELECTROCHEMICAL DEVICE, MANUFACTURING METHOD FOR THEREFORE, AND ELECTROCHEMICAL DEVICE THEREOF |
| US20220102756A1 (en) * | 2020-09-30 | 2022-03-31 | GM Global Technology Operations LLC | Methods for forming solid gel electrolyte membranes and batteries incorporating the same |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101046503B (zh) * | 2006-03-29 | 2011-02-16 | 深圳市比克电池有限公司 | 一种锂离子电池爆炸原因测试方法 |
| CN104151754B (zh) * | 2014-08-15 | 2016-05-25 | 上海三爱富新材料股份有限公司 | 高流动性乙烯-四氟乙烯共聚物组合物及其制备方法 |
| CN106898825B (zh) * | 2017-05-03 | 2019-02-05 | 江苏强劲新能源科技有限公司 | 一种双极性锌离子电池的制备方法 |
| CN109692497B (zh) * | 2017-10-20 | 2021-03-16 | 中国石油化工股份有限公司 | 微波萃取剂组合物和测定水性氟树脂基料中的氟的方法及其应用 |
| CN112585795B (zh) * | 2018-09-14 | 2022-03-29 | 株式会社吴羽 | 树脂分散电解液、聚合物凝胶电解质及其制造方法以及二次电池及其制造方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296318A (en) * | 1993-03-05 | 1994-03-22 | Bell Communications Research, Inc. | Rechargeable lithium intercalation battery with hybrid polymeric electrolyte |
| US5429891A (en) * | 1993-03-05 | 1995-07-04 | Bell Communications Research, Inc. | Crosslinked hybrid electrolyte film and methods of making and using the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5093427A (en) * | 1990-05-10 | 1992-03-03 | Atochem North America, Inc. | Copolymers of vinylidene fluoride and hexafluoropropylene and process for preparing the same |
| US5460904A (en) * | 1993-08-23 | 1995-10-24 | Bell Communications Research, Inc. | Electrolyte activatable lithium-ion rechargeable battery cell |
| TW342537B (en) * | 1995-03-03 | 1998-10-11 | Atochem North America Elf | Polymeric electrode, electrolyte, article of manufacture and composition |
-
1998
- 1998-02-27 CA CA002251648A patent/CA2251648A1/en not_active Abandoned
- 1998-02-27 CN CNB988002078A patent/CN1311577C/zh not_active Expired - Fee Related
- 1998-02-27 JP JP53795098A patent/JP2002513506A/ja not_active Abandoned
- 1998-02-27 ID IDW980106D patent/ID20294A/id unknown
- 1998-02-27 HU HU9903748A patent/HUP9903748A3/hu unknown
- 1998-02-27 WO PCT/US1998/004071 patent/WO1998038687A1/en active IP Right Grant
- 1998-02-27 KR KR1019980708803A patent/KR100537303B1/ko not_active IP Right Cessation
- 1998-02-27 EP EP98908864A patent/EP0907976A4/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296318A (en) * | 1993-03-05 | 1994-03-22 | Bell Communications Research, Inc. | Rechargeable lithium intercalation battery with hybrid polymeric electrolyte |
| US5429891A (en) * | 1993-03-05 | 1995-07-04 | Bell Communications Research, Inc. | Crosslinked hybrid electrolyte film and methods of making and using the same |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0907976A4 * |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8574770B2 (en) | 1997-12-26 | 2013-11-05 | Kureha Corporation | Vinylidene fluoride copolymer-based polymer electrolyte for nonaqueous battery retaining large proportion of electrolytic solution |
| US8043386B2 (en) | 1997-12-26 | 2011-10-25 | Kureha Corporation | Process for producing polymer electrolyte |
| US6824927B1 (en) * | 1997-12-26 | 2004-11-30 | Kureha Kagaku Kogyo Kabushiki Kaisha | Polymer electrolyte containing a vinylidene fluoride copolymer and a nonaqueous electrolytic solution, and nonaqueous battery containing the polymer electrolyte |
| US7452387B2 (en) | 1997-12-26 | 2008-11-18 | Kureha Corporation | Process for producing a polymer electrolyte of a vinylidene fluoride copolymer for a nonaqueous battery |
| US6506523B1 (en) * | 1998-04-27 | 2003-01-14 | Sony Corporation | Solid electrolyte secondary battery |
| EP1028479A2 (en) * | 1999-02-05 | 2000-08-16 | Ausimont S.p.A. | Electrolyte polymers for lithium rechargeable batteries |
| JP2000231936A (ja) * | 1999-02-05 | 2000-08-22 | Ausimont Spa | 再充電性リチウム電池用電解質ポリマー |
| EP1028479A3 (en) * | 1999-02-05 | 2005-07-27 | Solvay Solexis S.p.A. | Electrolyte polymers for lithium rechargeable batteries |
| GB2346729A (en) * | 1999-02-10 | 2000-08-16 | Aea Technology Plc | Polymer electrolyte |
| GB2346729B (en) * | 1999-02-10 | 2003-01-15 | Aea Technology Plc | Polymer electrolyte |
| WO2002011230A1 (en) * | 2000-07-31 | 2002-02-07 | Accentus Plc | Polymer electrolyte |
| US8303609B2 (en) | 2000-09-29 | 2012-11-06 | Cordis Corporation | Coated medical devices |
| EP1229597A2 (de) * | 2001-02-03 | 2002-08-07 | Microbatterie GmbH | Verfahren zur Herstellung von Elektrodenfolien |
| EP1229597A3 (de) * | 2001-02-03 | 2004-04-28 | VARTA Microbattery GmbH | Verfahren zur Herstellung von Elektrodenfolien |
| WO2004019344A1 (ja) * | 2002-08-26 | 2004-03-04 | Nippon Oil Corporation | イオン伝導性フィルム |
| US9175162B2 (en) | 2003-05-08 | 2015-11-03 | Advanced Cardiovascular Systems, Inc. | Methods for forming stent coatings comprising hydrophilic additives |
| US7066970B2 (en) | 2003-05-09 | 2006-06-27 | The Gillette Company | Electrochemical cells |
| US9114198B2 (en) | 2003-11-19 | 2015-08-25 | Advanced Cardiovascular Systems, Inc. | Biologically beneficial coatings for implantable devices containing fluorinated polymers and methods for fabricating the same |
| USRE45744E1 (en) | 2003-12-01 | 2015-10-13 | Abbott Cardiovascular Systems Inc. | Temperature controlled crimping |
| WO2006001788A1 (en) * | 2004-06-09 | 2006-01-05 | The Gillette Company | Electrochemical cells |
| US20160126600A1 (en) * | 2004-12-01 | 2016-05-05 | Sony Corporation | Battery |
| EP3694020A4 (en) * | 2018-06-20 | 2021-04-14 | Lg Chem, Ltd. | SEPARATOR FOR AN ELECTROCHEMICAL DEVICE, MANUFACTURING METHOD FOR THEREFORE, AND ELECTROCHEMICAL DEVICE THEREOF |
| US11657984B2 (en) | 2018-06-20 | 2023-05-23 | Lg Chem, Ltd. | Separator for electrochemical device, method for manufacturing same, and electrochemical device comprising same |
| US20220102756A1 (en) * | 2020-09-30 | 2022-03-31 | GM Global Technology Operations LLC | Methods for forming solid gel electrolyte membranes and batteries incorporating the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2251648A1 (en) | 1998-09-03 |
| KR100537303B1 (ko) | 2006-07-14 |
| EP0907976A4 (en) | 2005-11-02 |
| CN1217824A (zh) | 1999-05-26 |
| KR20000065176A (ko) | 2000-11-06 |
| CN1311577C (zh) | 2007-04-18 |
| ID20294A (id) | 1998-11-26 |
| HUP9903748A2 (hu) | 2000-03-28 |
| JP2002513506A (ja) | 2002-05-08 |
| EP0907976A1 (en) | 1999-04-14 |
| HUP9903748A3 (en) | 2000-06-28 |
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