POLYMER ELECTROLYTE COMPOSITE MEMBRANE HAVING EXCELLENT THERMAL-STABILITY AND INTERFACIAL-STABILITY, AND ENERGY STORAGE SYSTEM COMPRISING THE SAME

摘要

The present invention relates to a polymer membrane and, more specifically, to a polymer electrolyte composite membrane with improved thermal stability and surfactant stability, and to an energy storage device comprising the polymer electrolyte composite membrane. Provided in the present invention to achieving said purpose is a polymer electrolyte composite membrane comprising a hydrophilic polymer which is a first polymer, a non-aqueous polymer which is a second polymer, an amphiphilic polymer which is a third polymer, and a heat stabilizer.