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:
Aug. 03, 1999
Filed:
Dec. 23, 1996
Norikazu Komada, Omiya, JP;
Shinichiro Kakehashi, Omiya, JP;
Mitsugu Matsumoto, Omiya, JP;
Yoshitaka Tamo, Omiya, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Abstract
This invention provides a hydrogen occluding alloy exhibiting high absorption/desorption rates, and excellent initial activation, the alloy having a composition comprising, by wt %, 25% to 45% of Zr, 1% to 12% of Ti, 10% to 20 % of Mn, 2% to 12% of V, 0.5% to 5% of at least one rare earth element, preferably comprising La and/or Ce, optionally 0.1% to 4% of Hf, and a balance being Ni (25% or more of Ni) and unavoidable impurities. The alloy has a structure comprising: a main phase made of a Zr--Ni--Mn based alloy, numerous cracks, and a regenerated phase made of rare earth element-Ni type alloy, the regenerated phase being exposed on the surfaces of the cracks, as well as electrodes made of the alloy.