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:
Mar. 23, 1999
Filed:
Jul. 10, 1996
Norikazu Komada, Omiya, JP;
Mitsugu Matsumoto, Omiya, JP;
Shinichiro Kakehashi, Omiya, JP;
Yoshitaka Tamo, Omiya, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Abstract
This invention provides a hydrogen occluding 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, optionally 0.1% to 4% of Hf, one or more selected from hydrogen, hydrogen+oxygen, and oxygen, and a balance being Ni (25% or more of Ni) and unavoidable impurities, having a structure comprising: a phase made of a hydrogenated-product, dispersedly distributed in a matrix phase made of a Zr--Ni--Mn based alloy. The hydrogenated-product mainly comprises a rare earth element-Ni type alloy and a rare earth element hydride with numerous cracks formed at the time when the hydrogenated-product phase is generated. The hydrogenated-product phase is formed by exposing a hydrogen-containing substance on the surfaces of the cracks. Electrodes made of the alloy are disclosed.