Paste nickel electrode plate and a storage battery including an electroconductive material

摘要

A paste nickel electrode plate comprising a porous metal substrate filled with a mixture of a nickel hydroxide powder used as an active material and a CoO powder used as an electroconductive material wherein the CoO powder has a covering layer containing hydroxyl groups on the surfaces of the powder particles to prevent the formation of Co3O4 on the surfaces of the CoO powder particles. A storage battery is provided using the above-described paste nickel electrode plate as a positive electrode.