| 摘要 |
PURPOSE:To obtain high capacity and long life by specifying particle sizes of cadmium and/or zinc in the alloy organization. CONSTITUTION:A negative alloy electrode is used, that the particle sizes of cadmium and/or zinc of the alloy electrode containing the cadmium and/or zinc as necessary components and besides containing at least one kind chosen from the group composed of lead, tin, indium and bithmus are made 5mum or smaller in the alloy organization. The cadmium or zinc, a metal component of the second group in the metal organization carries out a role like binder and the finer the metal disperses in the alloy organization the greater its effect becomes. Thereby, high capacity is obtainable and besides the cyle-life can be elongated. |
