Process for producing hydrogen absorbing alloy powder and hydrogen absorbing alloy electrode
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsNaofumi Shinya, Hiroto Sugahara, Masatoshi Ishii
Life of this patent
Estimating the term…
Abstract
Provided is an inexpensive process for producing hydrogen absorbing alloy powder suitable for a nickel-metal hydride storage battery having a high rate discharge property, a high capacity and a long cycle life for repetition of charge and discharge. The process comprises a step of an addition of a rare earth metal oxide and/or hydroxide to a hydrogen absorbing alloy powder, a wet or dry mixing step and a thermal treatment step in an inert atmosphere or in a vacuum.
Claims5
Process for producing a hydrogen absorbing alloy powder comprising an addition step of a rare earth metal oxide and/or hydroxide to a hydrogen absorbing alloy powder, a wet or dry mixing step, and a thermal treatment step at 100 to 800° C. in an inert atmosphere or in a vacuum.
Dependencies are inferred from the claim text.