| abstract |
(57) [Problem] To achieve a stable high discharge capacity from the beginning of a cycle even when discharged at a low temperature (for example, about -20 ° C) or at a large current (for example, about CmA), and Provided is a method for manufacturing a nickel-metal hydride secondary battery having improved discharge cycle life. SOLUTION: After assembling, the battery is left, charged for the first time, and left at a temperature higher than room temperature. |