| 摘要 |
PURPOSE:To obtain stabilized negative electrode material for a secondary battery which has a large discharge capacity, large quick charging/discharging performance and a large discharge capacity from the initial time of a cycle, by using nickel-hydroxide as the negative electrode material for the secondary battery. CONSTITUTION:An alloy is used which is composed of 0.5-20% rhodium by atomic % density and the residual % palladium or which is composed of 0.5-20% rhodium, 0.5-15% nickel and the residual % palladium by atomic % density. Surface of this alloy is desirably coated with two layers of palladium black and platinum black in this order in a range of 1-2mg/cm<2>. |
