TW543224B - Polyolefin microporous membrane - Google Patents

Polyolefin microporous membrane Download PDF

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Publication number
TW543224B
TW543224B TW091110413A TW91110413A TW543224B TW 543224 B TW543224 B TW 543224B TW 091110413 A TW091110413 A TW 091110413A TW 91110413 A TW91110413 A TW 91110413A TW 543224 B TW543224 B TW 543224B
Authority
TW
Taiwan
Prior art keywords
microporous membrane
polyolefin microporous
polypropylene
viscosity
polyethylene
Prior art date
Application number
TW091110413A
Other languages
Chinese (zh)
Inventor
Norio Tsujioka
Takahiko Kondo
Yoko Saito
Original Assignee
Asahi Chemical Ind
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 Asahi Chemical Ind filed Critical Asahi Chemical Ind
Application granted granted Critical
Publication of TW543224B publication Critical patent/TW543224B/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • 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
    • H01M50/409—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
    • H01M50/489—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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/10—Homopolymers or copolymers of propene
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • 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
    • H01M6/18—Cells with non-aqueous electrolyte with solid electrolyte
    • H01M6/181—Cells with non-aqueous electrolyte with solid electrolyte with polymeric electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/023—Porous and characterised by the material
    • H01M8/0239—Organic resins; Organic polymers
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Cell Separators (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A microporous polyolefin film made of a composition is provided, which comprises as essential ingredients (A) polyethylene having a viscosity-average molecular weight of 50,000 to 1,500,000 and (B) polypropylene having a viscosity-average molecular weight of 100,000 to 1,500,000 in such proportions that A+B is at least 80 wt.% based on the whole composition, A/(A+B) is from 51 to 90 wt.%, and B/(A+B) is from 10 to 49 wt.%, and which has a shutdown temperature lower than 140 DEG C and has a continuous phase in which the polyethylene and polypropylene are intertwined with each other.
TW091110413A 2001-05-17 2002-05-17 Polyolefin microporous membrane TW543224B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001147935 2001-05-17

Publications (1)

Publication Number Publication Date
TW543224B true TW543224B (en) 2003-07-21

Family

ID=18993340

Family Applications (1)

Application Number Title Priority Date Filing Date
TW091110413A TW543224B (en) 2001-05-17 2002-05-17 Polyolefin microporous membrane

Country Status (5)

Country Link
JP (1) JP4641706B2 (en)
KR (1) KR100557380B1 (en)
CN (1) CN1255460C (en)
TW (1) TW543224B (en)
WO (1) WO2002092677A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9203072B2 (en) 2004-08-30 2015-12-01 Asahi Kasei Chemicals Corporation Microporous polyolefin film and separator for storage cell
JP5213443B2 (en) * 2005-08-03 2013-06-19 旭化成イーマテリアルズ株式会社 Polyolefin microporous membrane
KR101288803B1 (en) * 2007-09-12 2013-07-23 에스케이이노베이션 주식회사 Microporous polyethylene film with good property of strength and permeability at high temperature
US8338017B2 (en) 2007-10-12 2012-12-25 Toray Battery Separator Film Co., Ltd. Microporous membrane and manufacturing method
CN101983219B (en) * 2008-03-31 2014-03-12 旭化成电子材料株式会社 Polyolefin microporous membrane and products of winding
JP5403932B2 (en) * 2008-03-31 2014-01-29 旭化成イーマテリアルズ株式会社 Polyolefin microporous membrane
JP6659214B2 (en) * 2014-10-17 2020-03-04 トヨタ自動車株式会社 Battery separators, laminated separators, lithium ion secondary batteries and assembled batteries
CN105355811B (en) * 2015-10-29 2018-08-17 乐凯胶片股份有限公司 A kind of MIcroporous polyolefin film, preparation method and lithium ion battery
JP6025958B1 (en) 2015-11-30 2016-11-16 住友化学株式会社 Nonaqueous electrolyte secondary battery separator and use thereof
CN111295285A (en) 2017-11-08 2020-06-16 东丽株式会社 Polyolefin composite porous film, method for producing same, battery separator, and battery
WO2019163935A1 (en) * 2018-02-23 2019-08-29 東レ株式会社 Porous polyolefin film
ES2971108T3 (en) * 2018-03-28 2024-06-03 Lg Energy Solution Ltd Method to evaluate the stability of a separator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3348965B2 (en) * 1994-03-31 2002-11-20 三井化学株式会社 Microporous biaxially stretched film comprising a composition of high molecular weight polyethylene and high molecular weight polypropylene, its production method and its use
JP3699561B2 (en) * 1997-04-23 2005-09-28 東燃化学株式会社 Polyolefin microporous membrane and method for producing the same

Also Published As

Publication number Publication date
KR20030096395A (en) 2003-12-24
KR100557380B1 (en) 2006-03-06
WO2002092677A1 (en) 2002-11-21
CN1509307A (en) 2004-06-30
JP4641706B2 (en) 2011-03-02
JPWO2002092677A1 (en) 2005-03-10
CN1255460C (en) 2006-05-10

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GD4A Issue of patent certificate for granted invention patent
MM4A Annulment or lapse of patent due to non-payment of fees