The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 1996
Filed:
Mar. 28, 1995
Tetsuo Sakai, Ikeda, JP;
Tsutomu Iwaki, Yawata, JP;
Agency of Industrial Science & Technology, Tokyo, JP;
Abstract
A cell provided with a gaseous diffusion electrode is constituted of the gaseous diffusion electrode, a hydrogen-absorbing alloy electrode, and a chargeable auxiliary electrode wherein nickel hydroxide is used as the active material thereof. The chargeable auxiliary electrode may be disposed either between the gaseous diffusion electrode and the hydrogen-absorbing alloy electrode, or on the opposite side of the gaseous diffusion electrode to the hydrogen-absorbing alloy electrode. The chargeable auxiliary electrode that can be used may be either a sintered-type nickel electrode for securing a long life span, or a foamed-type nickel electrode or a fiber-type nickel electrode for securing a high capacity. The hydrogen-absorbing alloy electrode has a layer of at least one of metallic nickel, cobalt and copper on the surface of the alloy in order to suppress oxidation thereof at the time of over discharge.