METHOD FOR MANUFACTURING NICKEL HYDROGEN BATTERY

摘要

An enclosed nickel hydrogen battery exhibiting excellent discharge performance, e.g. high rate discharge performance, and high productivity in which a high capacity is achieved by reducing generation of initial negative electrode discharge reserve. A method for manufacturing an enclosed nickel hydrogen battery which comprises positive pole active substance particles composed of a core layer principally comprising a nickel compound containing oxynickel hydroxide, and a surface layer containing a cobalt compound and covering the core layer, and hydrogen occlusion alloy particles, comprising a step for oxidizing cobalt contained in the surface layer of the positive pole active substance and the core layer prior to assembling a battery, a step for performing charge/discharge operation at least once after assembling the battery, and a step for aging the battery following to the charge/discharge operation.