Japan Metals & Chemicals Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Toyota Jidoshokki

Tomoki Souma

Katsuyuki Kudo

Takao Sawa

Saki Notoyama

Takuya Watanabe

Motoyoshi Okumura

Atsushi Minagata

Takuro Kikuchi

Masato Hozumi

Masashi Kodama

Satoshi Kono

Hiroyuki Sasaki

Shuhei Mochida

Takeo Okanishi

A hydrogen storage alloy suitable for a negative electrode of an on-board alkaline storage battery, an alkaline storage battery using this hydrogen storage alloy, and a vehicle; wherein a fine-grained hydrogen storage alloy is used for an alkaline storage battery that has a crystal structure of an AB-type structure as a main phase and is represented by a general formula: (LaSm)MgNiAlCr(where suffixes a, b, c, d, and e meet the following conditions: 0≤a≤0.35, 0.15≤b≤0.30, 0.02≤d≤0.10, 0≤e≤0.10, 3.20≤c+d+e≤3.50, and 0<a+e), and an alkaline storage battery using this hydrogen storage alloy for a negative electrode. A vehicle also includes this alkaline storage battery as an electricity supply source for a motor.

Hydrogen storage alloy for alkaline storage battery, alkaline storage battery using the same as negative electrode, and vehicle

A hydrogen storage alloy suitable for a negative electrode of an alkaline storage battery is provided. The hydrogen storage alloy provided is a hydrogen storage alloy used for an alkaline storage battery that has, as a main phase, one or two crystal structures selected from an AB-type structure and an AB-type structure, and that is represented by a general formula: (LaCeSm)MgNiAlCr(where suffixes a, b, c, d, e, and f in this formula (1) meet the following conditions: 0<a≤0.15; 0≤b≤0.15; 0.17≤c≤0.32; 0.02≤e≤0.10; 0≤f≤0.05; and 2.95≤d+e+f≤3.50.

Hydrogen storage alloy for alkaline storage battery

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Yamagata, Japan

Tomoki Souma