Patent ID: 9225017
Filing Date: 2015-12-29
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. An alkaline storage battery comprising: a cathode including nickel hydroxide particles coated with a cobalt compound coating layer, and a cobalt additive; and an anode including a hydrogen-absorbing alloy that contains nickel and cobalt, wherein the cathode has a capacity V, the anode has a capacity W, the cobalt additive is metal cobalt or a cobalt compound, the cobalt additive is contained at X % by mass in the cathode, the cobalt is contained at Y % by mass in the hydrogen-absorbing alloy, and X, Y, V, and W satisfy 1.1≦(X/Y)×(W/V)≦1.91, wherein X/Y is between 0.65 and 1.87.