Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Toyota Chuo Kenkyusho

Yutaka Ohya

Takahiko Asaoka

Kazutaka Hiroshima

Hiroshi Aoki

Hisao Kato

Tetsuo Nagami

Katsuhito Yamada

Tomohisa Wakasugi

Takashi Simazu

Tatsuo Noritake

An electrode catalyst for a fuel cell includes a conductive support, and catalytic particles loaded on the conductive support. The catalytic particles include platinum and a base metal being on the lower end of the electrochemical series with respect to platinum. The number of the atoms of the base metal, forming metallic oxides without alloying with the platinum, is less than 5 atomic % of the number of the atoms of the platinum on a surface of the catalytic particles. The electrode catalyst is produced by loading the platinum and base metal on the conductive support, alloying the platinum and base metal thereon by a heat treatment, thereby making the catalytic particles, and removing metallic oxides from a surface of the catalytic particles. The electrode catalyst is less expensive comparatively, exhibits high catalytic activities, and hardly lowers the battery performance of fuel cells.

Electrode catalyst for fuel cell and process for producing the same

A humidifier device for use in fuel cells comprising a mist humidifier unit for adding mists to process gas supplied to an electrolyte equipped in a fuel cell and a humidifier unit control device for intermittently operating the mist humidifier unit in accordance with operating condition of the fuel cell.

Humidifer device for fuel cells and operating system thereof

Growing community of inventors

Aichi-gun, Japan

Yutaka Ohya