Investigation on the stability of the lithium-polymer electrolyte interface

In this paper is reported an investigation on the stability of the interfac e formed by polyethene oxide (PEO)-based polymer electrolytes in contact wi th lithium metal anodes. In particular, the investigation was oriented to d etermine the effect of the composite electrolyte preparation procedure and environment and the filler addition as well as the cell assembly procedure on the interfacial properties of PEO-LiCF3SO3/Li half cells. The stability investigation was performed at the operative temperature (90 degreesC) of t he electrolyte (PEO20LiCF3SO3) in rest condition as well as during continuo us lithium plating/stripping cycles. The results indicate that the preparat ion procedure and the environment play major roles with respect to the addi tion of the filler. (C) 2000 The Electrochemical Society. S0013-4651(00)02- 053-X. All rights reserved.