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1. (WO2018221670) ELECTROLYTE COMPOSITION, SECONDARY CELL, AND METHOD FOR MANUFACTURING ELECTROLYTE SHEET

Pub. No.:    WO/2018/221670    International Application No.:    PCT/JP2018/021011
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri Jun 01 01:59:59 CEST 2018
IPC: H01M 10/056
H01M 10/052
H01M 10/054
H01M 10/058
Applicants: HITACHI CHEMICAL COMPANY, LTD.
日立化成株式会社
Inventors: NISHIMURA Katsunori
西村 勝憲
OGAWA Nobuyuki
小川 信之
OGAWA Hideyuki
小川 秀之
GOGYO Yuma
五行 由磨
MIKUNI Hiroki
三國 紘揮
NISHIMURA Takuya
西村 拓也
TAKAOKA Kenji
高岡 謙次
MUROMACHI Miyuki
室町 みゆき
Title: ELECTROLYTE COMPOSITION, SECONDARY CELL, AND METHOD FOR MANUFACTURING ELECTROLYTE SHEET
Abstract:
The present invention provides an electrolyte composition containing: one or more types of polymer; oxide particles; at least one type of electrolyte salt selected from the group consisting of lithium salts, sodium salts, calcium salts, and magnesium salts; and a solvent, wherein: structural units constituting the one or more types of polymer include a first structural unit selected from the group consisting of tetrafluoroethylene and vinylidene fluoride, and a second structural unit selected from the group consisting of hexafluoropropylene, acrylic acid, maleic acid, ethyl methacrylate, and methyl methacrylate; the contained amount of the one or more types of polymer exceeds 90% by mass based on the total amount of polymer included in the electrolyte composition; and in the one or more types of polymer, the mass ratio of the contained amount of the first structural unit to the contained amount of the second structural unit is 50/50 or greater.