Kabushiki Kaisha Toyota Chuo Kenkyusho

Other

Ube Industries, Inc.

Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

Shinichi Towata

Senichi Yamada

Hideo Hasegawa

Hidehito Kubo

Kenichi Suzuki

Keiji Toh

Takemi Yamamura

Hisaaki Takao

Hiroyuki Mitsui

Masaki Shibuya

Toshihiro Ishikawa

Katsuyoshi Fujita

Hajime Ikuno

Shinya Morishita

Makoto Ishikura

Hiroshi Kawase

Kazuhiko Itoh

Katsushi Abe

Hideki Morino

Methods for making hydrogen storage tanks may include disposing a substantially solid block of hydrogen-absorbing alloy within an activation vessel. Hydrogen gas may then be introduced into the activation vessel under conditions that will cause the hydrogen-absorbing alloy to absorb hydrogen and crack or break apart. Preferably, a substantially powdered hydrogen-absorbing alloy is formed thereby. Thereafter, the substantially powdered hydrogen-absorbing alloy can be transferred from the activation vessel to a hydrogen storage tank without substantially exposing the powered hydrogen-absorbing alloy to oxygen. The hydrogen-absorbing alloy is preferably ingot-shaped when introduced into the activation vessel. Further, the substantially powdered hydrogen-absorbing alloy is preferably produced by continuously breaking the ingot-shaped hydrogen-absorbing alloy within the activation vessel due to volume expansion caused by the hydrogen-absorbing alloy having absorbed hydrogen. The hydrogen gas preferably contacts the hydrogen-absorbing alloy under relatively high-pressure and low temperature conditions.

Methods for manufacturing hydrogen storage tanks

An electrode for a sealed nickel/metal hydride battery and a method of manufacturing the same, which is capable of suppressing a decrease in the charging reserve of a hydrogen-storage alloy electrode (negative electrode) and an increase in the internal pressure of the battery, is provided. The hydrogen-storage alloy electrode is formed using a tackifier or a binder which is prepared from an organic polymer material containing the ether linkage (--O--), for example, polyethylene oxide, polypropylene oxide , or polybutylene oxide. The specified material is suitably hydrophilic, and it exhibits an oxidation resistance which is much higher than that of a conventional material containing the hydroxyl group (--OH). Therefore, the specified material is especially resistant to oxidation and decomposition at the positive electrode of the battery and can significantly reduce the production of hydrogen attributed to the oxidation and decomposition.

Sealed

A lead-free solder alloy comprises 0.8 to 5.0% inclusive by weight of Ag, not less than 0.1% by weight of In, not less than 0.1% by weight of Bi, the total amount of In and Bi being not more than 17% by weight and the balance of Sn and inevitable impurities. The other lead-free solder alloy further contains 0.1 to 10% by weight of Sb. These solder alloys have low melting point and narrow melting range, and furthermore, they show excellent wettability and mechanical characteristics.

Lead-free solder alloy

A fiber and fibrous material for producing composite materials, fiber-reinforced metals, fiber-reinforced plastics and fiber-reinforced ceramics, in which short fibers, whiskers or powders made of heat resistant material are deposited on continuous fibers made of heat resistant material. The composite materials, such as fiber-reinforced metals, plastics, and ceramics, contain the fibrous material in a matrix, and have improved control of the fiber volume ratio and mechanical characteristics. Processes for producing the fiber, fibrous materials and composite materials are also disclosed.

Fibrous material for composite materials, fiber-reinforced composite

The present invention relates to a fibrous material for composite materials, a fiber-reinforced metal produced therefrom, and a process for producing same. The fibrous material is composed of continuous filament fibers selected from heat resistant substances and short fibers, whiskers, or powders selected from heat resistant substances. The fiber-reinforced metal is composed of the fibrous material and a matrix metal, has a reduced anisotropy of mechanical properties, and can be made at my desired fiber volume ratio.

Fibrous material for composite materials, fiber-reinforced metal

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Aichi, Japan

Shinichi Towata