JP3440176B2 - 交差層微孔性膜バッテリーセパレータの製造法およびそれによって製造されるバッテリーセパレータ - Google Patents

交差層微孔性膜バッテリーセパレータの製造法およびそれによって製造されるバッテリーセパレータ

Info

Publication number
JP3440176B2
JP3440176B2 JP33441595A JP33441595A JP3440176B2 JP 3440176 B2 JP3440176 B2 JP 3440176B2 JP 33441595 A JP33441595 A JP 33441595A JP 33441595 A JP33441595 A JP 33441595A JP 3440176 B2 JP3440176 B2 JP 3440176B2
Authority
JP
Japan
Prior art keywords
layer
orientation
layers
sheet
microporous membrane
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.)
Expired - Fee Related
Application number
JP33441595A
Other languages
English (en)
Japanese (ja)
Other versions
JPH08236098A (ja
Inventor
ユー ウエイ−チン
エフ ダウギンス カールトン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Celgard LLC
Original Assignee
Celgard LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Celgard LLC filed Critical Celgard LLC
Publication of JPH08236098A publication Critical patent/JPH08236098A/ja
Application granted granted Critical
Publication of JP3440176B2 publication Critical patent/JP3440176B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • 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
    • H01M50/406—Moulding; Embossing; Cutting
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • 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
    • B32B38/18—Handling of layers or the laminate
    • B32B38/1808—Handling of layers or the laminate characterised by the laying up of the layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/18—Handling of layers or the laminate
    • B32B38/1808—Handling of layers or the laminate characterised by the laying up of the layers
    • B32B38/1816—Cross feeding of one or more of the 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
    • 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
    • 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
    • H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/022—Foam
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49108—Electric battery cell making

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Cell Separators (AREA)
  • Secondary Cells (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Laminated Bodies (AREA)
  • Primary Cells (AREA)
JP33441595A 1994-12-22 1995-12-22 交差層微孔性膜バッテリーセパレータの製造法およびそれによって製造されるバッテリーセパレータ Expired - Fee Related JP3440176B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US362048 1994-12-22
US08/362,048 US5667911A (en) 1994-11-17 1994-12-22 Methods of making cross-ply microporous membrane battery separator, and the battery separators made thereby

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2001309710A Division JP3502370B2 (ja) 1994-12-22 2001-10-05 バッテリーセルの製造法およびバッテリーセパレータ

Publications (2)

Publication Number Publication Date
JPH08236098A JPH08236098A (ja) 1996-09-13
JP3440176B2 true JP3440176B2 (ja) 2003-08-25

Family

ID=23424483

Family Applications (2)

Application Number Title Priority Date Filing Date
JP33441595A Expired - Fee Related JP3440176B2 (ja) 1994-12-22 1995-12-22 交差層微孔性膜バッテリーセパレータの製造法およびそれによって製造されるバッテリーセパレータ
JP2001309710A Expired - Fee Related JP3502370B2 (ja) 1994-12-22 2001-10-05 バッテリーセルの製造法およびバッテリーセパレータ

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2001309710A Expired - Fee Related JP3502370B2 (ja) 1994-12-22 2001-10-05 バッテリーセルの製造法およびバッテリーセパレータ

Country Status (6)

Country Link
US (1) US5667911A (forum.php)
EP (1) EP0723304A2 (forum.php)
JP (2) JP3440176B2 (forum.php)
KR (1) KR100362331B1 (forum.php)
CN (1) CN1075248C (forum.php)
TW (1) TW294845B (forum.php)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW297171B (forum.php) * 1994-12-20 1997-02-01 Hoechst Celanese Corp
US5601997A (en) 1995-02-03 1997-02-11 Tchao; Ruy Chemotaxis assay procedure
TW412542B (en) * 1995-12-25 2000-11-21 Asahi Chemical Ind Short-resistant micro-porous polyethylene membrane
AU1913099A (en) * 1997-12-31 1999-07-19 Duracell Inc. Battery separator
KR100477582B1 (ko) * 1998-01-23 2005-08-05 주식회사 새 한 다공성분리막의제조방법
US6322923B1 (en) 1998-01-30 2001-11-27 Celgard Inc. Separator for gel electrolyte battery
US6080507A (en) * 1998-04-13 2000-06-27 Celgard Inc. Trilayer battery separator
US6368742B2 (en) 1998-06-26 2002-04-09 Celgard, Inc. Polypropylene microporous membrane for battery separator
US6346350B1 (en) * 1999-04-20 2002-02-12 Celgard Inc. Structurally stable fusible battery separators and method of making same
US6602593B1 (en) 1999-08-30 2003-08-05 Celgard Inc. Battery separators with reduced splitting propensity
WO2001051171A1 (en) 2000-01-10 2001-07-19 Lg Chemical Co., Ltd High crystalline polypropylene microporous membrane, multi-component microporous membrane and methods for preparing the same
US20020136945A1 (en) * 2000-01-18 2002-09-26 Call Ronald W. Multilayer battery separators
US6432586B1 (en) 2000-04-10 2002-08-13 Celgard Inc. Separator for a high energy rechargeable lithium battery
KR100336395B1 (ko) * 2000-06-12 2002-05-10 홍지준 리튬 이차 전지의 제조방법
US6921608B2 (en) * 2000-07-11 2005-07-26 Celgard, Inc. Battery separator
US7063917B2 (en) 2001-02-21 2006-06-20 Ahlstrom Mount Holly Springs, Llc Laminated battery separator material
JP2002273684A (ja) * 2001-03-14 2002-09-25 Sumitomo Chem Co Ltd 電池セパレーター用樹脂フィルム状物のスリット方法および電池セパレーター用樹脂フィルム状物
US6881515B2 (en) * 2001-05-08 2005-04-19 Celgard Inc. Separator for polymer battery
JP3765396B2 (ja) * 2001-08-20 2006-04-12 ソニー株式会社 電池
US20050112462A1 (en) 2003-11-21 2005-05-26 Marple Jack W. High discharge capacity lithium battery
US8007940B2 (en) * 2001-12-11 2011-08-30 Eveready Battery Company, Inc. High discharge capacity lithium battery
US6998193B2 (en) 2001-12-28 2006-02-14 Policell Technologies, Inc. Microporous membrane and its uses thereof
US6815123B2 (en) * 2001-12-28 2004-11-09 Policell Technologies, Inc. Lithium-ion battery using heat-activatable microporous membrane
US6878226B2 (en) * 2002-01-08 2005-04-12 Wei-Ching Yu Continuous methods of making microporous battery separators
JP4744773B2 (ja) * 2002-05-23 2011-08-10 パナソニック株式会社 リチウムイオン二次電池
US6610353B1 (en) * 2002-09-23 2003-08-26 The Gillette Co. Method of applying adhesive to electrochemical cell components
CN100446304C (zh) * 2003-03-07 2008-12-24 鸿富锦精密工业（深圳）有限公司 电池隔板
US20040241550A1 (en) * 2003-05-28 2004-12-02 Wensley C. Glen Battery separator for lithium polymer battery
US7087343B2 (en) * 2003-07-15 2006-08-08 Celgard, Inc. High melt integrity battery separator for lithium ion batteries
US20050031943A1 (en) * 2003-08-07 2005-02-10 Call Ronald W. Battery separator and method of making same
KR100560158B1 (ko) * 2003-09-29 2006-03-16 주식회사 코캄 고 안전성 리튬 이차 전지 및 그 제조방법
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
US20050287425A1 (en) * 2004-06-25 2005-12-29 Celgard Inc. Li/MnO2 battery separators with selective ion transport
CN100372151C (zh) * 2004-08-13 2008-02-27 深圳市雄韬电源科技有限公司 铅酸蓄电池电极隔板和制作方法
US20070202394A1 (en) * 2006-02-28 2007-08-30 Viavattine Joseph J Separator systems for batteries
US20070238017A1 (en) 2006-04-07 2007-10-11 Celgard Llc Multilayer separator exhibiting improved strength and stability
SG183009A1 (en) * 2007-09-28 2012-08-30 Eveready Battery Inc Processes for producing synthetic pyrite
US8231999B2 (en) * 2008-02-06 2012-07-31 Sony Corporation Separator and battery using the same
JP2010027617A (ja) * 2009-10-01 2010-02-04 Panasonic Corp リチウムイオン二次電池
KR101065883B1 (ko) 2009-10-15 2011-09-19 삼성에스디아이 주식회사 이차 전지용 전극조립체, 그 제조방법 및 그 전극조립체를 구비하는 이차전지
US20140377397A1 (en) * 2011-05-17 2014-12-25 Ole-Bendt Rasmussen Apparatus for manufacture of a polymer film, which is oriented under an angle to its longitudinal direction
CN102263220B (zh) * 2011-06-22 2014-09-24 广东博特动力能源有限公司 电池隔膜的制备方法
KR101464430B1 (ko) * 2013-03-13 2014-11-21 삼성토탈 주식회사 미세다공성 막의 제조 방법 및 상기 방법으로 제조된 막을 이용한 이차전지용 분리막
KR20210029294A (ko) 2013-03-15 2021-03-15 셀가드 엘엘씨 리튬 이온 이차 전지용 다층 하이브리드 전지 분리기 및 이의 제조방법
CN103753936A (zh) * 2014-01-17 2014-04-30 成都芝田高分子材料有限公司 锂电池隔膜复合装置及其复合方法
US11283136B2 (en) * 2014-09-29 2022-03-22 Gs Yuasa International Ltd. Energy storage device and method of producing energy storage device
JP2016072233A (ja) * 2014-09-29 2016-05-09 株式会社Ｇｓユアサ 蓄電素子、及び蓄電素子の製造方法
CN105917491B (zh) * 2014-12-25 2019-01-15 住友化学株式会社 锂离子二次电池用分离器制造方法及锂离子二次电池用分离器切开方法
US10677587B2 (en) * 2016-01-29 2020-06-09 Sumitomo Chemical Company, Limited Method for measuring curl in separator, slit device, and curl measurement device
CN108305978B (zh) * 2018-01-09 2022-08-02 深圳中兴新材技术股份有限公司 一种锂离子电池复合隔膜及其制备方法
KR102642401B1 (ko) * 2019-03-13 2024-02-28 주식회사 엘지화학 가교 폴리올레핀 분리막의 제조방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439260A (en) 1982-05-17 1984-03-27 Mobil Oil Corporation Method and apparatus for forming cross-laminated thermoplastic film

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1365485A (en) 1920-06-05 1921-01-11 Guest Harold Augustine Tolley Holder for the burning of candles
US1753645A (en) 1924-04-18 1930-04-08 Walter Prior Machine for cutting bias strips
US1955282A (en) * 1931-12-19 1934-04-17 Lever Bias Machine Corp Bias cutting and wind-up apparatus
US2110856A (en) * 1936-02-01 1938-03-15 Lever Bias Machine Corp Bias cutting and wind-up apparatus
US2644522A (en) * 1950-08-15 1953-07-07 Callaway Mills Co Bias cutting machine
GB816607A (en) * 1954-10-04 1959-07-15 Rasmussen O B Method of manufacturing a thin band of a high molecular substance, which is orientated in a direction other than the length direction
US3558764A (en) * 1966-09-06 1971-01-26 Celanese Corp Process for preparing microporous film
US4078124A (en) * 1969-10-09 1978-03-07 Exxon Research & Engineering Co. Laminated non-woven sheet
US3679538A (en) * 1970-10-28 1972-07-25 Celanese Corp Novel open-celled microporous film
US3853601A (en) * 1972-04-18 1974-12-10 Celanese Corp Hydrophilic microporous film
SU499364A1 (ru) 1972-05-22 1976-01-15 Орловский научно-исследовательский институт легкого машиностроения Устройство дл разрезани по винтовой линии трубчатой ткани
US3843761A (en) * 1973-05-30 1974-10-22 Celanese Corp Process for preparing a thermoplastic microporous film involving a cold stretching step and multiple hot stretching steps
JPS5259825A (en) * 1975-11-12 1977-05-17 Matsushita Electric Industrial Co Ltd Zinc alkaline battery
US4078123A (en) * 1976-12-23 1978-03-07 Varta Batterie Aktiengesellschaft Spiral-wrapped multi-layer cell separator
JPS57203516A (en) * 1981-06-10 1982-12-13 Mitsui Petrochem Ind Ltd Manufacture of skew-oriented, laminated, stretched film
JPS5912559A (ja) * 1982-07-09 1984-01-23 Hitachi Maxell Ltd 有機電解質電池
JPS59173948A (ja) * 1983-03-19 1984-10-02 Hitachi Maxell Ltd 電池用セパレ−タの打抜き方法
US4640730A (en) * 1985-03-22 1987-02-03 Ashland Oil, Inc. Method of adhering roofing materials
US4650730A (en) * 1985-05-16 1987-03-17 W. R. Grace & Co. Battery separator
DE3616666A1 (de) * 1986-04-14 1987-10-15 Windmoeller & Hoelscher Vorrichtung zum wendelfoermigen aufschneiden einer folienschlauchbahn aus thermoplastischem kunststoff
JPS6372063A (ja) * 1986-09-12 1988-04-01 Toshiba Battery Co Ltd 非水電解液電池
US4907323A (en) * 1988-03-15 1990-03-13 Hexcel Corporation Method and apparatus for making biased fabric
US4902589A (en) * 1988-06-08 1990-02-20 Moli Energy Limited Electrochemical cells, electrodes and methods of manufacture
GB8815083D0 (en) * 1988-06-24 1988-08-03 Rasmussen O B Method & apparatus for helical cutting of lay-flat flexible tubular sheet of polymer material
US5350471A (en) * 1993-05-03 1994-09-27 Mirek Planeta Production of cross-laminated film from tube

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439260A (en) 1982-05-17 1984-03-27 Mobil Oil Corporation Method and apparatus for forming cross-laminated thermoplastic film

Also Published As

Publication number Publication date
CN1134043A (zh) 1996-10-23
KR960027006A (ko) 1996-07-22
CN1075248C (zh) 2001-11-21
JP3502370B2 (ja) 2004-03-02
TW294845B (forum.php) 1997-01-01
KR100362331B1 (ko) 2003-03-06
US5667911A (en) 1997-09-16
JPH08236098A (ja) 1996-09-13
EP0723304A2 (en) 1996-07-24
JP2002184381A (ja) 2002-06-28
EP0723304A3 (forum.php) 1996-08-28

Similar Documents

Publication Publication Date Title
JP3502370B2 (ja) バッテリーセルの製造法およびバッテリーセパレータ
JP6149052B2 (ja) 微孔性膜、電池セパレーターおよびその製造方法
JP3960437B2 (ja) 閉塞式三層バッテリーセパレーター
US9908317B2 (en) Multilayer battery separators
JP3003830B2 (ja) 積層多孔質フイルム及びその製法
KR100512540B1 (ko) 삼층 배터리 분리기의 제조 방법
JP3381538B2 (ja) 積層多孔質ポリオレフィンフイルムの製法
JP4516796B2 (ja) 電池セパレータおよびその製造方法
CN107108945B (zh) 聚烯烃微多孔膜、电池用隔膜及其制造方法
JPH07307146A (ja) 電池用セパレ−タ及びその製法
JP3852492B2 (ja) 電池用セパレータの製造法
JPH08236093A (ja) バッテリーセパレーター
KR20200035178A (ko) 전지용 세퍼레이터 및 그 제조 방법
JP3436055B2 (ja) 電池用セパレータ
JPH10241659A (ja) 電池セパレータ用多孔質フィルムの製造方法

Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees