New Interpenetrating Network-Type Siloxane Polymer Electrolyte

摘要

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 percent of the comb-shaped siloxane showed an ionic conductivity of greater than 5 X 10~(-4) S/cm at 37 deg C, with a wide electrochemical stability window of up to 4.5 V vs. lithium. A Li metal/solid polymer electrolyte/LiNi_(0.8)Co_(0.2)O_2 cell showed promising discharge capacities above 130 mAh/g and good cycling performance.