METHOD FOR PREPARING COMPOSITE SOLID STATE ELECTROLYTE
» Número: US2019036163A1 (A1)
» Fecha Publicación: 31/01/2019
» Solicitante: OPTIMUMNANO ENERGY CO LTD?[CN]
» Inventor: YANG XING?[CN]; LIU XIAOYAN?[CN] (1)
A method for preparing a composite solid state electrolyte includes the steps of: 1): dissolving a polyethylene oxide monomer and an additive in an organic solvent, obtaining a polymer after filtering; 2): adding Ru(Cp*)Cl(PPh3)2 to an organic solvent, dissolving the polymer in step 1) and a polystyrene monomer in the organic solvent, and obtaining a PEO-PST two-phase polymer; 3): adding Li2S, P2S5, GeS2, Al2S3, BaS and milling, pressing the milled powder into a wafer, and obtaining an Al, Ba doped solid state electrolyte material LABGPS; and 4): mixing the PEO-PST two-phase polymer in step 2) and the solid state electrolyte material LABGPS in step 3), adding a lithium salt, dissolving and dispersing the mixture in a mixed solution of tetrahydrofuran and acetone to form a sol, drying the sol, transferring the dried sol to a vacuum oven for vacuum drying, and obtaining a final composite solid state electrolyte PEO-PST-LABGPS.