Nickel/metal hydride secondary element comprises a positive nickel hydroxide electrode, a negative electrode containing a hydrogen storage alloy, and an alkaline electrolyte. The positive electrode provided with a three-dimensional metallic conducting stru...

The paste type positive electrode of the present invention contains a first active material, a second active material, and optionally cobalt hydroxide powder or cobalt oxyhydroxide powder. The first active material comprises X parts by weight of particulat...

The nickel-metal hydride storage battery of this invention includes a nonsintered nickel electrode using, as a positive electrode active material, nickel hydroxide including, as a solid-solution element, at least one element Q selected from the group consi...

Non-sintered nickel electrode comprises current collector and paste consisting of powdered nickel hydroxide-based active material, conductive material containing lithium and cobalt, and binder. Active material comprises particles of a hydroxide based on ni...