A Solid Electrolyte And Preparations Thereof

Abstract: ABSTRACT A SOLID ELECTROLYTE AND PREPARATIONS THEREOF The present disclosure provides a solid electrolyte comprising: a. 98.75 to 99.8% by weight of glassy-ceramic lithium phosphorus sulfur chloride (LiPSCl) having a 5 Formula: Li7-xPS6-xClx, wherein x is in a range of 1.4 to 1.6; and b. 0.2 to 1.25% by weight of a fibrillating binder, wherein the fibrillating binder is selected from polytetrafluoroethylene (PTFE), fluorinated ethylenepropylene (FEP) and ethylene-tetrafluoroethylene copolymer (ETFE), and the fibrillating binder has a molecular weight in a range of 1 × 106to 3 × 106g/mol; wherein the glassy-ceramic 10 LiPSCl has a crystalline nature in a range of 35 to 45% and amorphous nature in a range of 55 to 65%. The present disclosure further provides a method for preparing the solid electrolyte and an electrochemical cell comprising the solid electrolyte.

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