| abstract |
(57) 【Abstract】 PROBLEM TO BE SOLVED: To obtain a thin film electrolyte having high ionic conductivity and preventing leakage of an electrolytic solution, and to reduce weight by using the thin film electrolyte. Provide a battery with high energy density. A thin film-like porous layer having continuous pores and an ion-conducting solid polymer layer having substantially no through-holes on both sides of the layer, and an electrolyte solution in the voids of the porous layer. A thin film electrolyte formed by filling. A battery in which electrodes are joined via the thin film electrolyte. |