| 摘要 |
PURPOSE:To have excellent discharge capacity and long cycle life by using a specific LiMn2O4 dielectric substance as positive electrode active substance. CONSTITUTION:A non-aqueous electrolyte secondary battery includes a positive electrode 3, a non-aqueous electrolyte with Li ion conductivity, and a neg. electrode 4 consisting of Li or Li alloy. The positive electrode 3 shall consist of a dielectric substance of LiMn2O4 expressed by the equation given beside, where A represents one of the elements Na, K, Cu, Ag, and Zn; and B is one of the elements V, Cr, Fe, Co, and Ni, wherein the conditions are such that 1.1>=X>=0.9, 0.2>=Y>=0.0, 0.2>=Z>=0.0 provided that Y and Z do no take 0.0 simultaneously when X=1.0. This achievers a non-aqueous electrolyte secondary battery excellent in both discharge capacity and cycle lifetime. |
