Toyota Jidosha Kabushiki Kaisha

Aisin Takaoka Co., Ltd.

Masashi Maeda

Chisato Kato

Tsunemasa Nishida

Sho Usami

Masanori Matsukawa

Naohiro Takeshita

Koro Fujio

Norimitsu Takeuchi

Tetsuya Shimomura

A fuel cell system includes: a fuel cell including a fuel gas passage through which a fuel gas flows and an oxidant gas passage through which an oxidant gas flows, an inlet of the fuel gas passage being located closer to an outlet of the oxidant gas passage than to an inlet of the oxidant gas passage, an outlet of the fuel gas passage being located closer to the inlet of the oxidant gas passage than to the outlet of the oxidant gas passage; an oxidant gas supply unit supplying the oxidant gas to the fuel cell; and a supply amount controller configured to control the oxidant gas supply unit, the supply amount controller is configured to control the oxidant gas supply unit so that a stoichiometric ratio of the oxidant gas in a high-temperature high output power state is greater than that in a high-temperature low output power state.

Fuel cell system

An inspection method for inspecting a fuel cell, comprising: rising current density at a speed of a designated speed or greater, and judging whether the fuel cell is normal or abnormal by comparing a first voltage value that is the voltage value when the current density reaches a designated current density or greater with the rising step, and a second voltage value which is a judgment standard.

Fuel cell inspection method and manufacturing method

Growing community of inventors

Okazaki, Japan

Masashi Maeda