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, 2018
Filed:
Feb. 07, 2013
Santoku Corporation, Kobe-shi, Hyogo, JP;
SANTOKU CORPORATION, Hyogo, JP;
Abstract
Hydrogen storage alloy powder, an anode, and a nickel-hydrogen rechargeable battery are provided, which are excellent in low-temperature characteristics and both in initial activity and cycle life at the same time, which properties are trading-off in conventional nickel-hydrogen rechargeable batteries. The alloy powder has a composition represented by formula (1) RMgNiAlM(R: rare earth elements including Sc and Y, or the like; 0.005≦a≦0.40, 3.00≦b≦4.50, 0≦c≦0.50, 0≦d≦1.00, 3.00≦b+c+d≦4.50), and has an arithmetical mean roughness (Ra) of the powder particle outer surface of not less than 2 μm, or a crushing strength of not higher than 35,000 gf/mm.