POLYMER ELECTROLYTE COMPOSITION CONTAINING CYCLOTRIPHOSPHAZENE-BASED CROSSLINKING AGENT AND PLASTICIZER

摘要

The present invention relates to a semi- IPN (interpenetrating polymer network) type solid polymer electrolyte composition containing a cyclotriphosphazene-based crosslinking agent and a plasticizer. Since the crosslinking agent according to the invention forms a semi-IPN (Interpenetrating Polymer Network) type three dimensional network structure and the solid polymer electrolyte composition containing the crosslinking agent of the invention lowers crystallization of an ethyleneoxide group of a plasticizer side chain even at low temperature, ion conductivity is dramatically improved. In addition, the invention can be used as a solid polymer electrolyte such as a lithium-polymer secondary battery, a dye-sensitized solar cell, a fuel cell, etc. due to excellent electrochemical and thermal stability.