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Title:
POLYMER-MODIFIED POROUS MATERIAL, MEMBRANE ELECTRODE, SECONDARY BATTERY AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/007149
Kind Code:
A1
Abstract:
The embodiments of the present application provide a polymer-modified porous material, a membrane electrode, and the use thereof. The polymer-modified porous material comprises a porous material and a plurality of surface groups connected to the porous material, wherein each surface group comprises a linking group and a viscous group which are connected in sequence, the linking group having a structure as shown in structural unit I, where II represents O being connected to the porous material; the number of structural units I in each surface group is mutually independent, and the total mole number n of the structural units I in the polymer-modified porous material is 1000-10000; a monomer forming the viscous group is selected from any one or more of acrylic acid, ethylene, vinyl alcohol, ethylene imine, propylene, acrylonitrile, vinylidene fluoride and tetrafluoroethylene; the number of viscous groups in each surface group is mutually independent, and the total mole number m of the viscous groups is 10-1000; and n/m = 10-1000. The problem of the self-discharge of existing membrane electrodes being severe is ameliorated.

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Inventors:
LIN JIANGHUI (CN)
ZHAO YANJIE (CN)
LI XING (CN)
JIN HAIZU (CN)
Application Number:
PCT/CN2022/103871
Publication Date:
January 11, 2024
Filing Date:
July 05, 2022
Export Citation:
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Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M50/46; C09J4/02
Foreign References:
CN111418087A2020-07-14
CN104053687A2014-09-17
CN111244460A2020-06-05
JP2016072162A2016-05-09
Other References:
WU, DEFENG ET AL.: "Graft Copolymerization of Acryamide with Montmorillonite", CHINESE JOURNAL OF COLLOID & POLYMER, vol. 20, no. 01, 25 March 2002 (2002-03-25), pages 18 - 21, XP055906233, ISSN: 1009-1815, DOI: 10.13909/j.cnki.1009-1815.2002.01.006
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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