Toyota Jidosha Kabushiki Kaisha

Hirokazu Ishimaru

Masaki Terada

Yuichiro Hama

Haruyuki Nakanishi

Satoshi Yoshida

Yukihisa Katayama

Makoto Ito

Masahiro Imanishi

Shigeaki Murata

Katsuyuki Kido

Yoshihisa Tamura

Makoto Kito

Yoichi Serino

Sreekumar Kurungot

A porous gas diffusion electrode provided on a polymer electrolyte such that a gas can be introduced, for a polymer electrolyte fuel cell, includes a carbon fiber, and an electric conductive polymer and a thermoset resin that bond the carbon fibers to each other.

Gas diffusion electrode, method for manufacturing the same and membrane electrode assembly

A tubular fuel cell includes an inner current collector, a membrane-electrode assembly, and seal portions provided at the axial end portions of the membrane-electrode assembly, respectively. The membrane-electrode assembly includes an inner catalyst layer provided on the inner current collector, an electrolyte membrane provided on the inner catalyst layer, and an outer catalyst layer provided on the electrolyte membrane. The axial length of the outer catalyst layer is shorter than the axial lengths of the electrolyte membrane and the outer catalyst layer. The axial end face of the outer catalyst layer and the axial end face of the inner catalyst layer are located on the opposite sides of the seal portion in each side of the tubular fuel cell.

Tubular fuel cell

A tubular fuel cell comprises a cylindrical internal electrode having electrical conductivity, a lamination of a first catalytic layer, an electrolytic layer, and a second catalytic layer laminated in that order on an outer circumferential surface of the internal electrode, and an electrically conductive exterior coil wound around an outer circumferential surface of the second catalytic layer. The tubular fuel cell further comprises an electrically conductive spacer which has an outside diameter greater than that of the exterior coil.

Tubular fuel cell and fuel cell module

This invention intends to improve the catalyst efficiency by sufficiently providing a triple phase boundary where reaction gas, catalysts, and electrolytes meet in carbon nanohorns. With the utilization of the resulting MEA, the electrode reactions are allowed to effectively proceed, and the power generation efficiency of a fuel cell is improved to result in a solid polymer fuel cell with excellent properties. Such solid polymer fuel cell comprises electrodes having a catalyst layer comprising: a carrier comprising a carbon nanohorn aggregate; catalytic metals supported on the carrier comprising a carbon nanohorn aggregate; and polymer electrolytes coating the carrier comprising a carbon nanohorn aggregate, wherein the proportion of the polymer electrolyte to the carbon nanohorn aggregate is 0.32:1 to 0.70:1 by weight.

Solid polymer fuel cell and method for producing MEA used for solid polymer fuel cell

A fuel cell module that includes: a plurality of tubular fuel cells, each of which contains a cylindrically shaped inner electrode that exhibits conductivity, a first catalyst layer, an electrolyte layer, and a second catalyst layer laminated sequentially to the outer peripheral surface of the inner electrode, and an external coil that exhibits conductivity and is wound around the outer peripheral surface of the second catalyst layer in such a manner that a first coil section with a loose winding pitch is sandwiched between second coil sections with a tight winding pitch; and a current collecting member that exhibits conductivity and is provided with a plurality of openings into which the tubular fuel cells can be inserted, wherein the first coil sections and the openings fit together.

Tubular fuel cell with coil current collector

In a high-pressure tank, an adjacent part of a liner and a protruded part of a cap are provided adjacently to each other, and in respective annular grooves in the protruded part, an O-ring for sealing adjacent portions of the adjacent part and the protruded part is loaded. A backup ring provided in the inside of the adjacent part of the liner has a hardness higher than that of the liner. Therefore, deformation of the adjacent part that would be caused by the respective O-rings is suppressed, and the respective O-rings can be sufficiently compressed, whereby reliable sealing between the liner and the cap can be provided. In addition, when the pressure inside of the high-pressure tank is increased to a high pressure, even if the cap is pushed out toward the outside resulting in the protruded part of the cap being shrinkage-deformed toward the inside in the radial direction due to the stresses, the respective O-rings can maintain the state of sealing between the protruded part and the adjacent part.

Tank

In a state where a gas barrier sheet ( ) having a gas barrier layer is held between a heat plate ( ) and a pressing plate, the gas barrier sheet is disposed between two molds together with a sub tank ( ) and a separator ( ) constituting attachment parts, the molds are then closed and a resin is injection-molded forming a resin layer ( ). A method for manufacturing a resin container by melt-adhering an intermediate molded product ( ) and another intermediate molded product ( ) constituting a pair therewith by heating with a heat plate ( ) thereafter, and a resin container manufactured by this manufacturing method.

Growing community of inventors

Toyota, Japan

Hirokazu Ishimaru