| 摘要 |
PURPOSE: To provide a nonaqueous secondary battery with large charge/ discharge capacity. CONSTITUTION: A nonaqueous secondary battery comprises a positive electrode, a negative electrode, and an electrolyte prepared by dissolving an electrolyte in a nonaqueous solvent. Coke with a heat history of 400-700 deg.C is crushed and coke powder is heat-treated in an inert gas atmosphere at 900-100 deg.C, then used as a negative electrode material. |
