Agency of Industrial Science and Technology

Jfe Steel Corporation

National Institute of Advanced Industrial Science and Technology

Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

Government Industrial Research Institute

Jfe Container Co., Ltd

Nobuhiro Kuriyama

Tetsuo Sakai

Itsuki Uehara

Hiroshi Miyamura

Hideaki Tanaka

Hiroyuki Takeshita

Tomoyuki Yokota

Toshio Takano

Hidekazu Tsuruta

Mitsuharu Muta

Nobuhiko Takeichi

Kenjiro Hamada

A pressure containercomposed of a reinforcing layerand a liner layer, with a hydrogen charging pressure of 30 MPa or higher; and a hydrogen absorbing material and a carrier for holding said hydrogen absorbing material (hydrogen absorbing material portion) contained in the pressure containerare included, and a volume fraction X of the hydrogen absorbing material with &#x3b1;m&#x2267;100 kg/mwith respect to an internal volume of the pressure containeris 5(%)&#x2266;X&#x2266;20(%), where &#x3b1;m denotes a maximum hydrogen absorption amount per unit volume of the hydrogen absorbing material (kg/m); X=100 &#xb7;Vm/Vi (%); Vi is an internal volume of the pressure container (L); and Vm is a volume of the hydrogen absorbing material in the pressure container (L).

Hybrid hydrogen storage container and method of storing hydrogen in container

The calcium-aluminum system hydrogen absorbing alloy of the present invention is an alloy which is composed of a mixture P of Ca with Mg and an Al base alloy Q, has a molar ratio P:Q of 1:1.5 to 2.8 and shows a Laves phase with the C15-type structure as the fundamental structure thereof.

Calcium-aluminum system hydrogen absorbing alloy

A hydrogen occlusion electrode comprising a compact of a mixture powder including a titanium-nickel alloy which contains oxygen.

Hydrogen occlusion electrode

The calcium-aluminum system hydrogen absorbing alloy of the present invention is an alloy which is composed of a mixture P of Ca with (optional) Mg and an Al base alloy Q, has a molar ratio P:Q of 1:1.5 to 2.8 and shows a Laves phase with the C15-type structure as the fundamental structure thereof.

A hydrogen storage electrode for use as an anode of an alkaline battery and a process for producing such electrode are disclosed. According to the process, firstly particles of hydrogen storage alloy powder with maximum particle size of 50 .mu.m is prepared. The alloy powder particles are then made into microcapsules by electroless plating with copper amounting to 10%-20% by weight with respect to the sum of the alloy powder and the plating copper. With an electric current collector placed in contact with the copper-plated alloy powder set in a die cavity of a molding press, the molding dies are closed to press and the copper-plated powder and the current collector for bonding them together thereby to form the hydrogen storage electrode. Pressure exerted during the pressing is applied to such an extent that the porosity of the resulting compact of the pressed alloy powder falls in the range of 10% to 25%.

Hydrogen storage electrode and process for producing the same

Growing community of inventors

Ikeda, Japan

Nobuhiro Kuriyama