| 摘要 |
PROBLEM TO BE SOLVED: To provide a secondary power supply having high breakdown voltage, high capacity, and good quick charging and discharging cycle characteristics. SOLUTION: A secondary power supply has a negative electrode mainly containing a carbon material with an edge surface thereof increased by treating carbon material capable of absorbing and desorbing a lithium ion with a solution with aromatic hydrocarbon dissolved in an ether solvent, a positive electrode mainly containing activated carbon, and an organic electrolyte containing a lithium salt. |
