Mixed phase solid electrolytes with nonconducting polymer binder
Abstract Mixed phase electrolytes containing 80–95 v/o Li + conducting sulphide glass (1.2 Li 2 S-1.6 LiI-B 2 S 3 ) and different polymer materials have been found to yield room temperature ionic conductivities about 1000 times larger than PEO-based polymer electrolytes. Contrary to expectation, addition of the nonconducting polyethylene yields the best results, indicating that the function of the binder is mainly to keep the grains of the solid phase in contact.