JPS55105963A - Separator for cell - Google Patents

Separator for cell

Info

Publication number
JPS55105963A
JPS55105963A JP1198179A JP1198179A JPS55105963A JP S55105963 A JPS55105963 A JP S55105963A JP 1198179 A JP1198179 A JP 1198179A JP 1198179 A JP1198179 A JP 1198179A JP S55105963 A JPS55105963 A JP S55105963A
Authority
JP
Japan
Prior art keywords
membrane
separator
radiation
treated
polymer film
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.)
Pending
Application number
JP1198179A
Other languages
Japanese (ja)
Inventor
Sueo Machi
Isao Ishigaki
Takanobu Sugo
Kazuo Murata
Shiro Tanshu
Keiji Senoo
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.)
Japan Atomic Energy Agency
Yuasa Corp
Original Assignee
Japan Atomic Energy Research Institute
Yuasa Battery Corp
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 Japan Atomic Energy Research Institute, Yuasa Battery Corp filed Critical Japan Atomic Energy Research Institute
Priority to JP1198179A priority Critical patent/JPS55105963A/en
Publication of JPS55105963A publication Critical patent/JPS55105963A/en
Pending 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
    • 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

Abstract

PURPOSE:To obtain a separator having excellent chemical stability, excellent mechanical properties, and low electric resistance by irradiating a radiation to a polymer film and then subjecting the polymer film to graft polymerization with acrylic acid or methacrylic acid aqueous solution. CONSTITUTION:A 20 micron-thick high-density polyethylene membrane is enclosed in a polyethylene bag in the atmosphere of nitrogen and then exposed to a radiation of 20Mrad under the irradiation condition of an acceleration of voltage of 2MeV and an acceleration current of 1mA, using a resonance transformer accelerator. Then, the membrane thus treated is brought into contact with a monomer aqueous solution in a glass ampoule, containing 50wt% acrylic acid and 0.25wt% a Mohl's salt and subjected to a deoxydization treatment in which nitrogen gas in bubbled to remove dessolved oxygen, and then held at 25 deg.C for 5hr at a reduced pressure of 10<-4>mmHg for reaction. Afterwards, the grafted membrane thus obtained is taken out of the glass ampoule, washed with water to remove unreacted monomer and homopolymer, dried, and then treated with a 2.5% caustic alkalie aqeuous solution at 90 deg.C for 120min to obtain a separator.
JP1198179A 1979-02-05 1979-02-05 Separator for cell Pending JPS55105963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1198179A JPS55105963A (en) 1979-02-05 1979-02-05 Separator for cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1198179A JPS55105963A (en) 1979-02-05 1979-02-05 Separator for cell

Publications (1)

Publication Number Publication Date
JPS55105963A true JPS55105963A (en) 1980-08-14

Family

ID=11792769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1198179A Pending JPS55105963A (en) 1979-02-05 1979-02-05 Separator for cell

Country Status (1)

Country Link
JP (1) JPS55105963A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58172865A (en) * 1982-04-05 1983-10-11 Res Dev Corp Of Japan Manufacture of separator for battery
JPS58206044A (en) * 1982-05-26 1983-12-01 Meidensha Electric Mfg Co Ltd Finely porous film of bromine-zinc secondary battery
JP2021101423A (en) * 2015-04-10 2021-07-08 セルガード エルエルシー Improved microporous membrane, separator, lithium battery, and associated method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58172865A (en) * 1982-04-05 1983-10-11 Res Dev Corp Of Japan Manufacture of separator for battery
JPS58206044A (en) * 1982-05-26 1983-12-01 Meidensha Electric Mfg Co Ltd Finely porous film of bromine-zinc secondary battery
JP2021101423A (en) * 2015-04-10 2021-07-08 セルガード エルエルシー Improved microporous membrane, separator, lithium battery, and associated method

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