| 摘要 |
PURPOSE:To provide hydrogen storage alloy electrode excellent in quick charge and discharge characteristics, as well as charge and discharge cycle life characteristics, and further provide a method for manufacturing said electrode. CONSTITUTION:A conductive porous substrate such as a punching metal and expanded metal is coated with hydrogen storage alloy powder pulverized into the predetermined grain size, a conductive monofilament and a material constituting a polymer binding agent, and pressed for integration, thereby forming a hydrogen storage alloy electrode. Preferably, a hydrophilic granular powder having a mean grain size of 10mum or less is added as a material to constitute a binder. According to this construction, the conductive monofilament acts to increase the mechanical strength of an electrode. When fluoresin and a polymer material are concurrently used as a binding agent for the electrode, gas absorption capability in quick charge can be improved. As a result, it becomes possible to provide a secondary battery excellent in quick charge and discharge characteristics as well as charge and discharge cycle life by using a hydrogen storage alloy electrode in the title. |
