Mitsui Minings & Melting Co., Ltd.

Shingo Kikugawa

Kiyotaka Yasuda

Yoshiki Sakaguchi

Yoshimi Hata

Keisuke Miyanohara

Daisuke Mukai

Akira Uchiyama

A hydrogen storing alloy containing only a few impurities leading to a short circuit where the yield can be maintained even when the alloy is subjected to magnetic separation treatment. A hydrogen storing alloy includes a matrix phase having an AB5 type crystal structure, the alloy having a misch metal (referred to as 'Mm') in an A-site in an ABx composition and having any one or at least one of Ni, Al, Mn, and Co in a B-site in the ABx composition, wherein the ratio (referred to as 'ABx') of the total number of moles of elements comprising the B site to the total number of moles of elements comprising the A site is 5.00&#x3c;ABx&#x2266;5.40; the content of Co is more than 0.0 mol % and less than 0.7 mol %; and residual magnetization is more than 0 emu/g and 0.020 emu/g or less.

Hydrogen storing alloy

Hydrogen-occluding alloy and process for producing the same

Hydrogen storage alloy and method for preparation thereof

Growing community of inventors

Hiroshima, Japan

Shingo Kikugawa