Hiroshima University

Toyota Jidosha Kabushiki Kaisha

Yoshitsugu Kojima

Takayuki Ichikawa

Kyoichi Tange

Satoshi Hino

Chie Oomatsu

Hiroki Miyaoka

Haruyuki Nakanishi

Hironobu Fujii

Hitoshi Inokawa

Michihiro Miyake

Yoshikazu Kameshima

Shunsuke Nishimoto

A hydride secondary battery includes: a pressure vessel; a positive electrode disposed in the pressure vessel; a negative electrode disposed in the pressure vessel; and hydrogen gas with which the pressure vessel is filled. The negative electrode contains a hydrogen-absorbing alloy. In a pressure-composition-temperature diagram, a desorption curve at 25&#xb0; C. of the hydrogen-absorbing alloy has a plateau pressure of 0.15 MPa or more and 10 MPa or less. The hydrogen gas has a pressure equal to or higher than the plateau pressure at 25&#xb0; C. of the hydrogen-absorbing alloy.

High pressure type hydride secondary battery

A method for producing a metal nanoparticle complex according to the present invention is a method for producing a metal nanoparticle complex in which metal nanoparticles are supported in pores of a porous body, said method comprising at least: an adsorption step of allowing an organic metal complex to adsorb in pores of a porous body; and a decomposition/reduction step of heating the porous body, which has had the organic metal complex adsorbed in the pores thereof, under a reductive atmosphere to decompose an organic compound in the organic metal complex adsorbed in the pores of the porous body and also reduce a metal cation in the organic metal complex, thereby causing metal nanoparticles to be supported in the pores of the porous body.

Method for producing metal nanoparticle complex, and metal nanoparticle complex produced by said method

A hydrogen production method includes: a first process in which nitrogen compounds of metal and water are reacted to produce ammonia and hydroxide of the metal; a second process in which hydrogen compounds of a metal and the ammonia produced in the first process are reacted; and a third process in which hydrogen compounds of a metal and the hydroxide of the metal produced in the first process are reacted.

Hydrogen production method, hydrogen production system, and fuel cell system

A lithium hydride activation method includes: a nitrification treatment process of reacting lithium hydride with a nitride and therefore forming a chemical compound layer stable to the nitride, on a surface of the lithium hydride; and a particle size reduction process of reducing a particle size of the lithium hydride provided with the chemical compound layer by a mechanical pulverization treatment after the nitrification treatment process is performed. A hydrogen generation method includes generating hydrogen by reacting ammonia with the lithium hydride activated by the activation method.

Activation method for lithium hydride, and hydrogen generation method

Growing community of inventors

Higashihiroshima, Japan

Yoshitsugu Kojima