| 摘要 |
PROBLEM TO BE SOLVED: To provide a full solid secondary battery having excellent rate characteristic and cycle lifetime characteristic, especially a full solid Li secondary battery. SOLUTION: A film material of the high molecular solid electrolyte mainly composed of acrylonitrile-butadien copolymer having the bridge structure, ethylene carbonate, chain carbonate and alkali metal salt is interposed between a positive electrode carrying the positive mix in a positive electrode collector and a negative electrode so as to form a full solid secondary battery having a power generating element. Porosity of the positive electrode mix is set at 32-39%. As the alkali metal salt, Li salt is used and the negative electrode carries the negative electrode mix mainly composed of the carbonaceous material in a negative electrode collector, and porosity of the negative electrode mix is desirably set at 3-37%. |
