| 摘要 |
PROBLEM TO BE SOLVED: To provide a secondary battery which has high electric power and longer lifetime with suppressing internal resistance of the battery and increase rate of the internal resistance. SOLUTION: This second battery comprises a positive electrode 6, formed of lithium-containing compound enabling dope or dedope lithium, a negative electrode 5 formed of a graphite-retardant carbon material, and nonaqueous electrolyte. The nonaqueous electrolyte is comprised of solution prepared, by dissolving lithium phosphate hexafluoride into a mixture of ethylene carbonate, propylene carbonate and dimethyl carbonate. |
