| abstract |
(57) [Summary] [PROBLEMS] To provide high energy density, long cycle life, and safety. SOLUTION: A current collector comprising a porous body that performs a reaction of precipitating and / or dissolving an alkali metal, and a solid electrolyte in which ions movable in a solid are only alkali metal ions, The solid electrolyte is at least partially impregnated in the porous body to be integrated. |