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:
Jul. 28, 2026
Filed:
Apr. 15, 2021
Mitsui Kinzoku Company, Limited, Tokyo, JP;
Keisuke Miyanohara, Takehara, JP;
Kyohei Yamaguchi, Takehara, JP;
Abstract
An ABs-type hydrogen storage alloy is provided that has a low Co amount and uses Mm composed of La and Ce, which is capable of preventing a decrease in lifetime characteristics. The hydrogen storage alloy has an ABx composition constituted with an A-site composed of an Mm and a B-site composed of Ni, Co, Mn, and Al, or Ni, Mn, and Al, wherein Mm is composed of La and Ce; the molar ratio of Co is 0.0 or more and 0.11 or less when the molar ratio of Mm is 1.00; the ratio (Al/Mn) of the molar ratio of Al to the molar ratio of Mn is 0.35 to 1.10; and the ratio of the c-axis length to the a-axis length in the CaCu-type crystal structure is 0.8092 or more.