| 摘要 |
PURPOSE:To improve charge-discharge performance by specifying limiting battery voltage for charge and discharge in a secondary battery using mainly Cu as a negative electrode, mainly CuxTiS2 compound as a positive electrode, and conductive solid electrolyte. CONSTITUTION:A solid electrolyte secondary battery is formed with a negative electrode mainly comprising Cu, a positive electrode mainly comprising an intermetallic compound selected from CuxTiS2, CuxTiCryS2+1.5y, (0<=x<0.2, 0.01<y< 0.2), and a Cu ion conductive solid electrolyte such as RbCu4I1.25Cl3.75. Charge limiting battery voltage is specified to 0.60+ic.RcV or less, and discharge limiting battery voltage is specified to 0.33-id.RdV or more. By this charge-discharge method, good charge-discharge performance is obtained. Where, ic and id show charge and discharge current values respectively, and Rc and Rd show d.c. internal resistance values of battery in charge and discharge respectively. |
