| 摘要 |
PURPOSE:To provide a lithium battery having an excellent evenness in discharge voltages by adding positive electrode active material for a lithium secondary battery having a specified potential range to lithium to positive electrode active material. CONSTITUTION:To Cu4O(PO4)2. to be used for positive electrode active material, positive electrode active material for a lithium secondary battery having a potential range of 2V or more to lithium is added. When a lithium battery manufactured this way is discharged, the added positive electrode active material discharges where a discharge voltage of Cu4O(PO4)2 is reduced, and reduction of the voltage can be restricted. When the discharge voltage of Cu4O(PO4)2 is restored to a voltage even part, the added positive electrode active material is charged again. As a result, if the battery is discharged again after stoppage of discharge, because the voltage reduction is restricted, almost even discharge characteristics can be obtained. The positive electrode active material for a lithium secondary battery to be added shall preferably be chalcogenide such as TiS2, MoS2. |
