Patent application number | Description | Published |
20080268326 | CATALYST LAYER, MEMBRANE ELECTRODE ASSEMBLY, FUEL CELL HAVING MEMBRANE ELECTRODE ASSEMBLY, METHOD OF PRODUCING CATALYST LAYER, AND METHOD OF PRODUCING MEMBRANE ELECTRODE ASSEMBLY - There are provided a catalyst layer that improves power generation efficiency, a membrane electrode assembly, a fuel cell using the membrane electrode assembly, and a method of producing the membrane electrode assembly. Specifically, there are provided a catalyst layer including at least a first catalyst material and a second catalyst material which is different from the first catalyst material, in which the first catalyst material includes a polyacid having a thiol group, and the first catalyst material and the second catalyst material are bound to each other through a thiol bond; a membrane electrode assembly having the catalyst layer; a fuel cell having the membrane electrode assembly; a method of producing the catalyst layer; and a method of producing the membrane electrode assembly. | 10-30-2008 |
20090004515 | Fuel Cell and Method of Operating Fuel Cell - A fuel cell stack is divided into a main power generation portion and a sub power generation portion. A variable load large in variation of output current is connected to the main power generation portion located upstream in a fuel flow and a steady load small in variation of output current is connected to the sub power generation portion located downstream in the fuel flow. This causes a fuel cell unit constituting the sub power generation portion to continue consuming a constant fuel by constant power generation and also causes hydrogen gas to continue flowing at a constant flow rate into the fuel cell unit, thereby preventing impurity gas concentrated and stored in the fuel cell unit from diffusing toward the upstream. | 01-01-2009 |
20090130514 | Membrane electrode assembly for fuel cell, method of producing same, and fuel cell - Provided is a membrane electrode assembly for a fuel cell which comprises a polymer electrolyte | 05-21-2009 |
20090246564 | FUEL CELL AND METHOD OF OPERATING FUEL CELL - Provided is a fuel cell which has a buffer space provided on a downstream side of a fuel supply space, and in which an output of a most downstream fuel cell unit is less affected by impurity gas stored in the fuel supply space. | 10-01-2009 |
20100068583 | FUEL CELL STACK - In order to provide a fuel cell stack which can sufficiently use a current range that can originally be output by a fuel cell unit, and from which high output can be obtained even with a small size, a thickness of an oxygen flow field plate is made large for a fuel cell unit having a relatively high temperature during operation, and the thickness of the oxygen flow field plate is made small for a fuel cell unit having a relatively low temperature during operation. | 03-18-2010 |
20100304263 | VALVE HAVING VALVE ELEMENT DISPLACED BY AT LEAST ONE OF A MOVEMENT OF A DIAPHRAGM AND A MOVEMENT OF AN ACTUATOR, AND FUEL CELL USING THE VALVE - A valve and a fuel cell using the same are provided, the valve having a fluid inlet, a fluid outlet, a flow path communicating therebetween, a valve element provided in the flow path, a diaphragm which is disposed so as to separate the inside from the outside of the flow path and which is to be deformed by the difference in pressure between the inside and the outside of the flow path, a valve shaft connecting between the valve element and the diaphragm, and an actuator provided for the diaphragm. In the valve described above, the valve element is displaced by at least one movement of the diaphragm and the actuator to open and close the valve. Accordingly, the valve has a simple structure which can be easily miniaturized and which is unlikely to be degraded even when a corrosive fluid flows through the valve. | 12-02-2010 |
20120113496 | ELECTROCHROMIC ELEMENT AND METHOD OF FORMING SAME - An electrochromic element includes a pair of transparent electrodes, and an electrolyte layer and an electrochromic layer disposed between the pair of transparent electrodes. Transmittance of light is changed by a voltage applied to the pair of transparent electrodes. The electrochromic layer includes a first electrochromic layer and a second electrochromic layer stacked upon each other. Both of the first and second electrochromic layers are made of titanium oxide. The first electrochromic layer is in contact with one of the pair of transparent electrodes. The second electrochromic layer is in contact with an electrolyte-layer side of the first electrochromic layer. A refractive index n0 of the transparent electrode in contact with the first electrochromic layer, a refractive index n1 of the first electrochromic layer, and a refractive index n2 of the second electrochromic layer satisfy the relationship n005-10-2012 | |
20150198907 | ELECTRO-CONDUCTIVE ROLLER AND METHOD OF MANUFACTURING THE SAME - An electro-conductive roller, such as a charging roller, that can reduce abnormal electrical discharge in the axial direction of the roller and pinhole leak and be resistant to degradation in electrical characteristics even with long-term use, and a method of manufacturing the same, are provided. | 07-16-2015 |