Hydrogen storage alloy electrode and sealed-type nickel-metal hydride storage battery using the same

摘要

A hydrogen storage alloy electrode (6) comprising an electrically conductive support made of a punched or perforated metal sheet (1), a mixture (5) supported on said conductive support and a water-repellent agent for giving a water-repellent property on the surface of the electrode, said mixture including: a hydrogen storage alloy powder, a styrene-butadiene copolymer having a styrene to butadiene weight ratio in a range of 100:30 to 100:100 as a binder, a polymeric material for giving a hydrophilic property inside the electrode, and carbon black for giving a hydrophobic property inside the electrode.