JPS5650054A - Separator for battery - Google Patents

Separator for battery

Info

Publication number
JPS5650054A
JPS5650054A JP12627479A JP12627479A JPS5650054A JP S5650054 A JPS5650054 A JP S5650054A JP 12627479 A JP12627479 A JP 12627479A JP 12627479 A JP12627479 A JP 12627479A JP S5650054 A JPS5650054 A JP S5650054A
Authority
JP
Japan
Prior art keywords
film
grafted
cross
immersed
separator
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.)
Granted
Application number
JP12627479A
Other languages
Japanese (ja)
Other versions
JPS6243303B2 (en
Inventor
Masaaki Arakawa
Tomoyuki Murakami
Takafumi Iwata
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.)
Nitto Denko Corp
Original Assignee
Nitto Electric Industrial Co Ltd
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 Nitto Electric Industrial Co Ltd filed Critical Nitto Electric Industrial Co Ltd
Priority to JP12627479A priority Critical patent/JPS5650054A/en
Publication of JPS5650054A publication Critical patent/JPS5650054A/en
Publication of JPS6243303B2 publication Critical patent/JPS6243303B2/ja
Granted legal-status Critical Current

Links

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
    • H01M50/411—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
    • H01M2300/00—Electrolytes
    • H01M2300/0002—Aqueous electrolytes
    • H01M2300/0005—Acid electrolytes
    • 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
    • H01M2300/0002—Aqueous electrolytes
    • H01M2300/0014—Alkaline electrolytes
    • 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
    • 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)
  • Cell Separators (AREA)

Abstract

PURPOSE:To obtain a separator with excellent resistances to alkali and to acid which almost completely blocks the penetration of electrode-composing materials, by subjecting a graft-copolymer of a thermoplastics film and a vinyl monomer to cross- linking. CONSTITUTION:The separator of a battery is prepared from a cross-linked graft- copolymer which is made from a thermoplastic film such as a polyethylene film, and a vinyl monomer such as acrylic acid or methacrylic acid. For instance, polyethylene pellets are formed into a film of 25mu thickness, which is subjected to an irradiation of 20 megarad in the air under an electronic ray of 2 million V, 20mA. The film is immersed in a methanol solution containing 30% of methacrylic acid, before the film is immersed in a boiling water to remove the homopolymer of methacrylic acid, thus obtaining a grafted film with the grafted rate of 72%. The thus obtained grafted film is again immersed in a methanol solution containing an epoxy resin and triethylenediamine at 60 deg.C, thereby obtaining a cross-linked grafted-film.
JP12627479A 1979-09-29 1979-09-29 Separator for battery Granted JPS5650054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12627479A JPS5650054A (en) 1979-09-29 1979-09-29 Separator for battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12627479A JPS5650054A (en) 1979-09-29 1979-09-29 Separator for battery

Publications (2)

Publication Number Publication Date
JPS5650054A true JPS5650054A (en) 1981-05-07
JPS6243303B2 JPS6243303B2 (en) 1987-09-12

Family

ID=14931137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12627479A Granted JPS5650054A (en) 1979-09-29 1979-09-29 Separator for battery

Country Status (1)

Country Link
JP (1) JPS5650054A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810368A (en) * 1981-07-08 1983-01-20 Yuasa Battery Co Ltd Battery separator and its manufacture
JPS61169154U (en) * 1985-04-05 1986-10-20
JP2016012478A (en) * 2014-06-30 2016-01-21 Tdk株式会社 Separator and lithium ion secondary battery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810368A (en) * 1981-07-08 1983-01-20 Yuasa Battery Co Ltd Battery separator and its manufacture
JPS61169154U (en) * 1985-04-05 1986-10-20
JP2016012478A (en) * 2014-06-30 2016-01-21 Tdk株式会社 Separator and lithium ion secondary battery

Also Published As

Publication number Publication date
JPS6243303B2 (en) 1987-09-12

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