New Interpenetrating Network-Type Siloxane Polymer Electrolyte

Abstract

An interpenetrating network (IPN), comb-type, siloxane-based solid polymer electrolyte solid polymer electrolyte was prepared and its electrochemical properties were evaluated. The cross-linking reaction conditions were established from accelerated rate calorimetry studies. An IPN solid ploymer electrolyte with 60 wt % of the comb-shaped siloxane showed an ionic conductivity of greater than at 37°C, with a wide electrochemical stability window of up to 4.5 V vs. lithium. A Li metal/solid polymer cell showed promising discharge capacities above 130 mAh/g and good cycling performance. © 2002 The Electrochemical Society. All rights reserved.