METAL FOAM FOR SECONDARY BATTERY ELECTRODE

摘要

A copper metal foam, or a large pore size metal foam, particularly a large pore size nickel metal foam, is utilized as a support for a negative electrode in a metal hydride alkaline secondary battery. Or a copper metal foam is employed as a support for an electrode of alithium-ion secondary battery. The metal foam for the electrode support is a light weight, typically very flexible foam. The metal foam is particularly serviceable as an electrode support for a hydrogen storage alloy negative electrode, e.g., an electrode containing an active material of metallic alloy, such as an AB5 class of alloy or an AB2 class of alloy. As a support for an alkaline secondary battery negative electrode, the large pore metal foam may also serve as the negative cadmium electrode for a nickel-cadmium battery. As copper metal foam, the foam may further serve as the support for the positive or negative electrode, or for both, for a lithium-ion secondary battery.