| 摘要 |
PURPOSE:To provide a battery allowing a large-current charge/discharge at the room temperature and excellent in reversibility without impairing the feature that a positive electrode using an active material made of a disulfide compound has a high energy density. CONSTITUTION:A battery is constituted of a positive electrode 5 using an active material made of a disulfide compound and a negative electrode 3 made of metal lithium. A gel electrolyte dissolved with alkaline metal salt is used for an electrolyte portion, and propylene carbonate or a mixed liquid of propylene carbonate and dimethoxyethane is used for an electrolyte composition. When a gel electrolyte is used for the electrolyte, sufficient ion conductivity is obtained at the room temperature, and a large-current charge/discharge is allowed. The practical contact area is remarkably increased, and a positive electrode capacity of about 100% can be obtained. The reversibility of reaction is improved, and the cycle characteristic is stabilized. |
