Patent application number | Description | Published |
20090068527 | SOLID POLYMER FUEL CELL AND METHOD FOR PRODUCING MEA USED FOR SOLID POLYMER FUEL CELL - 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. | 03-12-2009 |
20090130523 | Tubular Solid Polymer Fuel Cell Comprising a Rod-Shaped Current Collector With Peripheral Glas Flow Channels and Production Method Thereof - There is provided a tubular fuel cell in which a catalyst ink does not penetrate into a gas flow channel at the time of preparing a catalyst layer, and hence does not block the flow channel and thereby improves the electric power generation performance as well as the gals flow property, and there is also provided a production method of the tubular fuel cell. A tubular solid polymer fuel cell including a fuel gas flow channel | 05-21-2009 |
20090286126 | TUBE-SHAPED SOLID POLYMER FUEL CELL AND METHOD FOR PRODUCING TUBE-SHAPED SOLID POLYMER FUEL CELL - A tube-shaped solid polymer fuel cell is provided with communicating fuel gas channels | 11-19-2009 |
20090325022 | METHOD OF MANUFACTURING A MEMBRANE-ELECTROLYTE ASSEMBLY FOR FUEL CELLS, AND MEMBRANE-ELECTROLYTE ASSEMBLY - A method of manufacturing a membrane-electrolyte assembly by a solution three-layer coating method enables the manufacture of a membrane-electrolyte assembly having a high generation efficiency in which the seeping of the electrolyte solution into the pores in the catalyst layer is prevented. The method comprises performing the application of individual inks and drying treatment for a first catalyst layer | 12-31-2009 |
20100183945 | ELECTRODE CATALYST FOR FUEL CELL, PROCESS FOR PRODUCING THE SAME AND SOLID POLYMER FUEL CELL COMPRISING THE SAME - To improve catalytic efficiency by securing sufficient three phase interfaces in carbon nanohorns, where a reactant gas, a catalyst and an electrolyte meet. The resulting support with a catalyst allows an electrode reaction to proceed efficiently and improves the power generation efficiency of a fuel cell. Also, an electrode having excellent properties and a solid polymer fuel cell including the electrode, capable of giving high battery output are provided. An electrode catalyst for a fuel cell including a carbon nanohorn aggregate as a support, a catalytic metal supported on the carbon nanohorn aggregate support and a polyelectrolyte applied to the carbon nanohorn aggregate support, characterized in that the catalytic metal is not supported in deep regions between carbon nanohorns. Preferably, the catalytic metal has an average particle size of 3.2 to 4.6 nm. | 07-22-2010 |