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|1. (WO2018221670) ELECTROLYTE COMPOSITION, SECONDARY CELL, AND METHOD FOR MANUFACTURING ELECTROLYTE SHEET|
|Applicants:||HITACHI CHEMICAL COMPANY, LTD.
|Title:||ELECTROLYTE COMPOSITION, SECONDARY CELL, AND METHOD FOR MANUFACTURING ELECTROLYTE SHEET|
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.