POLYMER COMPOUND, BINDER RESIN, COMPOSITION FOR ION-CONDUCTIVE POLYMER ELECTROLYTE, AND SECONDARY CELL

摘要

A polyurethane polymer compound having a high dielectric constant, an ability of dissolving an ion-conductive salt at high concentration therein, and a high adhesion owing to the introduction of a substituent of a large dipole moment into polyurethane molecules, allowing the electrodes and the electrolyte to be in good contact with one another, and exhibiting as high an interface impedance as an electrolyte solution does is disclosed. A binder resin containing such a polymer compound, a composition for ion-conductive polymer electrolytes mainly consisting of such a polymer compound and an ion-conductive salt and having a high ionic conductivity and a high adhesion, and a secondary cell comprising them are also disclosed.