| abstract |
(57) [Summary] [Purpose] To provide gel electrolyte for batteries and electrochemical device materials. A water-absorbing polyalkylene oxide having a thermoplasticity, which is obtained by reacting a polyalkylene oxide having a weight average molecular weight of 1,000 to 1,000,000, a polyol, and an isocyanate compound in the presence of an amine-based and / or tin-based catalyst. 100 parts by weight of modified product and 0.1 of inorganic oxide ~ 20 parts by weight of a composition is molded, and 5 ~ 500KG A gel electrolyte obtained by impregnating an electrolyte and a non-aqueous organic solvent after irradiating the electron beam of y. [Effect] A gel electrolyte having good workability, capable of forming a thin film, having sufficient gel strength even when absorbing a non-aqueous electrolyte solution, and having good ionic conductivity is provided. |