Nissan Motor Company Limited

Tokyo Ohka Kogyo Co., Ltd.

Takayuki Hirao

Yasuhiro Numao

Kimio Nishimura

Kaoru Eguchi

Akira Fujiki

Masahiro Omata

Hiroshi Saitou

Yoshiki Muto

Hiroshi Miyaoka

Takeharu Kuramochi

Masanori Iwamoto

Masahiko Katsu

Yukihiro Maekawa

Haruhiko Suzuki

Tooru Kosemura

Takeshi Shimizu

Sadao Miki

Hiroshi Okonogi

Futoshi Shimai

Michito Kishi

Jun Inomata

Aurel Funar

[Problems] To easily and efficiently manufacture a catalyst layer having high catalytic activity and to easily manufacture a fuel cell having high power generation efficiency. [Solution] An apparatus for forming a catalyst layerfor a fuel cell on an electrolyte film (application object), the apparatus including: a holding portionthat holds a sheet-shaped electrolyte film, an application portionthat applies a catalyst inkfor forming the catalyst layeron at least one side of the electrolyte filmheld by the holding portion, a chamber portionthat is capable of forming a spaceincluding the holding portion, and a suction portionthat depressurizes the inside of the spaceformed by the chamber portionso as to dry the catalyst ink

Catalyst-layer forming apparatus

A membrane catalyst layer assembly production method is provided for producing a membrane catalyst layer assembly by discharging catalyst ink having a solvent and a solid component onto an electrolyte membrane. The membrane catalyst layer assembly production method includes forming a first catalyst ink layer having a first porosity on the electrolyte membrane by controlling a porosity of a catalyst ink layer that is formed by the catalyst ink making impact with the electrolyte membrane by adjusting an amount of solvent in the catalyst ink in drop form prior to impact with the electrolyte membrane, and forming a second catalyst ink layer having a second porosity, which is different from the first porosity, on the first catalyst ink layer, by adjusting the amount of solvent in the catalyst ink in drop form prior to impact with the first catalyst ink layer.

Membrane catalyst layer assembly production method and membrane catalyst layer assembly production device

A method is provided that modifies a catalyst layer of a membrane catalyst layer assembly, which is manufactured by transferring the catalyst layer formed on a transfer sheet onto an electrolyte membrane. In the catalyst layer correction method, presence or absence of a defect in the catalyst layer is detected. The defect is removed based on the size and position of the detected defect. The portion from which the defect has been removed is repaired by application thereto of a correcting ink corresponding to the catalyst layer.

Method and device for modifying catalyst layer

A method for manufacturing a separator assembly includes a preparation step for preparing a first separator, a second separator, and an elastic member; a first placement step for positioning the elastic member and placing the same on a placement surface; a second placement step for positioning the first separator in relation to the elastic member, and placing the first separator so as to overlap the elastic member; and a joining step for joining the elastic member and first separator which have been positioned and made to overlap. In the second placement step, the first separator is made to overlap the elastic member while first positioning members for positioning the elastic member are made to retract into the placement surface.

Method and apparatus for manufacturing separator for fuel cell

Separators (A,B,) and membrane-electrode assemblies () of a fuel cell stack () are alternately stacked in a guide box (). The separators (A,B,) each have groove-like gas paths (A,B). Powder of an adhesive agent () is adhered in advance to the surfaces of the separators (A,B,), except the gas paths (A,B), through photosensitive drums (A,B) to which the powder is adsorbed in a given pattern. The separators (A,B,) and the membrane-electrode assemblies (), stacked in the guide box (), are heated and compressed by a press () and heaters (C) to obtain a unitized fuel cell stack ().

Fuel cell and production of fuel cell stack

Growing community of inventors

Kanagawa, Japan

Takayuki Hirao