MICROPOROUS SOLID ELECTROLYTES AND METHODS FOR PREPARING THE SAME

摘要

PURPOSE: Provided is a solid electrolyte film usable in rechargeable cells, to provide pathways for ions mobile between a cathode and an anode during repeated charge and discharge of rechargeable cells by introducing liquid components and lithium salts to a solid electrolyte film having a microporous structure and containing an absorbent. CONSTITUTION: The solid electrolyte for rechargeable cells comprises: an electrolyte film having a thickness of 20 to 200pm and microporous structures, wherein the electrolyte film contains an inorganic absorbent having a particle size not more than 40μm in an amount of at least more than 70% by weight based on the total weight of the electrolyte film under the dried condition that no liquid electrolyte is contained therein; and an ion conductive liquid electrolyte in an amount of 20 to 90% by weight based on the total weight of the electrolyte including liquid electrolyte.