| 摘要 |
PROBLEM TO BE SOLVED: To proivde a non-aqueous electrolyte lithium secondary battery excellent in high rate discharging characteristics and long term chargign/discharging cyclic characteristics. SOLUTION: In the lithum secondary battery equipped with a positive electrode composed of compound oxide containing lithium, a negative electrode making carbon material active material, and with non-aqueous electrolyte, the aforesaid negative electrode is formed out of a current collector, an adhesive layer to be closely contacted to the current collector, and of active material closely contacted to the adhesive layer, and furthermore, the aforesaid adhesive layer is formed so as to contain graphite and binder, concurrently, a weight ratio of binder to graphite in the aforesaid adhesive layer shall be 1/99 to 12/88, and moreover, it is so specified that the weight ratio of binder to graphite in the adhesive layer is larger than the weight ratio of binder to active material in the aforesaid active materail. |
