Honda Motor Co., Ltd.

Keiko Yamazaki

Masataka Furuyama

Ryo Jinba

Yasuhiro Watanabe

Takashi Kato

Masaru Oda

Masahiro Mohri

Hiromichi Yoshida

Yasunori Kotani

Chikara Iwasawa

Hideo Okamoto

Akihiro Matsui

Hideaki Sumi

Masahiro Ise

Atsushi Kamachi

Hiroaki Ohta

Masataka Shibuya

A method for operating a fuel cell vehicle includes supplying electric power to a vehicle drive motor from at least one of a fuel cell and a battery. It is determined whether an electric potential of electric power output from the fuel cell is within a deterioration acceleration region in which the fuel cell is deteriorated due to a platinum oxidation-reduction reaction. The fuel cell is controlled in a deterioration suppressing mode when the electric potential is within the deterioration acceleration region in a state where the fuel cell and the battery supply electric power to the vehicle drive motor.

Method for operating fuel cell vehicle

A fuel cell stack is comprised of a plurality of power generating units which are stacked along the horizontal direction. An oxidant gas inlet port and a fuel gas inlet port are provided in an upper portion of one of the power generating units, and an oxidant gas outlet port and a fuel gas outlet port are provided in the lower portion of the power generating unit. A refrigerant inlet port and a refrigerant outlet port are formed in each of the left and right portions of the power generating unit.

Fuel cell stack

A method of operating a fuel cell includes the steps of detecting hydrogen peroxide concentration during power generation by a hydrogen peroxide concentration sensor provided directly on a membrane electrode assembly and determining an operating condition of the fuel cell based on the detected hydrogen peroxide concentration.

Fuel cell and method of operating the fuel cell

A membrane electrode assembly of a fuel cell includes a solid polymer electrolyte membrane, a cathode, and an anode. The surface size of a cathode side electrode catalyst layer of the cathode is smaller than the surface size of an anode side electrode catalyst layer of the anode. An inner end of a gas impermeable film provided around the anode side electrode catalyst layer and an outer end of a cathode side electrode catalyst layer are overlapped with each other on both sides of the solid polymer electrolyte membrane.

Fuel cell

Growing community of inventors

Utsunomiya, Japan

Keiko Yamazaki