The Japan Steel Works, Ltd.

Exergy Power Systems, Inc.

Hokkaido University

Kazuya Kubo

Kaduo Tsutsumi

Hironobu Arashima

Toshiki Kabutomori

Hideaki Itoh

Tomohiro Ueno

Toshio Takahashi

Hiroshi Kawano

Kunihiko Hashi

Hideaki Ito

Soumei Oonuki

A battery negative electrode includes a hydrogen storage alloy as a negative electrode active material, wherein the hydrogen storage alloy has a mean volume diameter within a range from 4 &#x3bc;m to 12 &#x3bc;m, and is disposed to be capable of being in contact with hydrogen in a hydrogen containing part in which hydrogen is contained.

Battery negative electrode, battery, and manufacturing method of battery negative electrode

A hydrogen storage alloy of Ti Mn V Zr (one of two kinds or more of Fe, Co, Cu, Zn, Ca, Al, Mo and Ni) (herein, a is 10 to 40 atomic %, b is 40 to 60 atomic %, c is 5 to 30 atomic %, d is 15 atomic % or less, and x is 0 to 10 atomic %) is obtained by the rapid solidification (solidification at the cooling rate of desirably 10 &deg; C./sec or higher).

Method of producing hydrogen storage alloys

Growing community of inventors

Hokkaido, Japan

Kazuya Kubo