| 摘要 |
PURPOSE:To improve the initial characteristics, utilization factor and cycle life of a hydrogen storage alloy electrode by immersing the electrode in alkaline solution heated up to the predetermined temperature. CONSTITUTION:Hydrogen storage alloy powder is pressed to form an electrode. Then, this electrode is immersed in alkaline solution heated up to a level between 100 deg.C and 120 deg.C. Metal not alloyed is thereby caused to elude. Also, a metal porous body is filled with the hydrogen storage alloy powder, together with a binder, and pressed to form an electrode. This electrode is immersed in alkaline solution heated up to a level between 100 deg.C and 120 deg.C. Then, the electrode is washed and dried, and again added with a binder, thereby forming a hydrogen storage alloy electrode for sealed cell. According to this method, it becomes possible to improve the initial characteristics, utilization factor and cycle life of a hydrogen storage alloy electrode for a sealed cell. |
