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2
US20100062305A1
Publication/Patent Number: US20100062305A1
Publication date: 2010-03-11
Application number: 12/532,789
Filing date: 2008-03-25
Abstract: An electrode catalyst layer for a fuel cell includes a first region and a second region more highly water repellent than the first region. The amount of catalyst per unit area in the first region is smaller than the amount of catalyst per unit area in the second region. The electrode catalyst layer makes it possible to reduce the amount of catalyst contained in the electrode catalyst layers, while avoiding a drop in output voltage of the fuel cell. An electrode catalyst layer for a fuel cell includes a first region and a second region more highly water repellent than the first region. The amount of catalyst per unit area in the first region is smaller than the amount of catalyst per unit area in the second region. The ...more ...less
4
BR9911883B1
Publication/Patent Number: BR9911883B1
Publication date: 2009-01-13
Application number: 9911883
Filing date: 1999-07-02
Abstract: Patente de Invenção: 'DISPOSITIVO REFORMADOR DE COMBUSTìVEL'. A presente invenção é direcionada a um dispositivo reformador de combustível que produz um gás rico em hidrogênio a partir de um hidrocarboneto e vapor. A reação de reforma do vapor que produz o gás rico em hidrógenio a partir do hidrocarboneto e vapor é endotérmica. Uma técnica conhecida fornece o calor necessário para a reação de reforma do vapor por uma reação de oxidação exotérmica prosseguindo em paralelo com a reação de reforma do vapor. Essa técnica conhecida pode Patente de Invenção: 'DISPOSITIVO REFORMADOR DE COMBUSTìVEL'. A presente invenção é direcionada a um dispositivo reformador de combustível que produz um gás rico em hidrogênio a partir de um hidrocarboneto e vapor. A reação de reforma do vapor que produz o gás rico em hidrógen ...more ...less
5
WO2008084713A1
Publication/Patent Number: WO2008084713A1
Publication date: 2008-07-17
Application number: 2007075112
Filing date: 2007-12-27
Abstract: This invention provides a composite powder for a fuel cell
6
WO2008123486A1
Publication/Patent Number: WO2008123486A1
Publication date: 2008-10-16
Application number: 2008056282
Filing date: 2008-03-25
Abstract: Disclosed is an electrode catalyst layer for fuel cells
7
WO2008013293A1
Publication/Patent Number: WO2008013293A1
Publication date: 2008-01-31
Application number: 2007064831
Filing date: 2007-07-24
Abstract: Disclosed is a fuel cell wherein deterioration of fuel cell performance due to dry up phenomenon and flooding phenomenon is suppressed. Specifically disclosed is an assembly for fuel cells or a fuel cell wherein a catalyst layer contains a first composite catalyst particle containing a catalyst supporting particle and a solid polymer electrolyte and a second composite catalyst particle having a larger volume average particle diameter than the first composite catalyst particle and arrangement of the first composite catalyst particle and the second composite catalyst particle is controlled in the thickness direction of the catalyst layer. Consequently Disclosed is a fuel cell wherein deterioration of fuel cell performance due to dry up phenomenon and flooding phenomenon is suppressed. Specifically disclosed is an assembly for fuel cells or a fuel cell wherein a catalyst layer contains a first composite catalyst particle ...more ...less
8
US20070129237A1
Publication/Patent Number: US20070129237A1
Publication date: 2007-06-07
Application number: 10/588,150
Filing date: 2005-02-18
Abstract: In an apparatus A in which electrode powder 10 is allowed to adhere via the electrostatic force to an electrolyte membrane that serves as a substrate 2 so as to form a catalyst layer, a screen 5 is held in a state of non-contact with the substrate 2, and a voltage is applied therebetween. The electrode powder 10 is allowed to adhere to an elastic feed roller 7, and the feed roller 7 is allowed to rotate in contact with the screen 5 by pressure. The electrode powder 10 is dispersed toward the substrate 2 so as to stably adhere thereto via both the electrostatic force and the extruding force of the elastic body. Variation of thickness and collapse of the outline are extremely reduced on the catalyst layer to be transferred and formed on the substrate (electrolyte membrane) via the electrostatic force using a conventionally used mesh-like screen so as to obtain a membrane electrode assembly with a high product manufacturing accuracy. In an apparatus A in which electrode powder 10 is allowed to adhere via the electrostatic force to an electrolyte membrane that serves as a substrate 2 so as to form a catalyst layer, a screen 5 is held in a state of non-contact with the substrate 2, and a voltage is applied ...more ...less
9
WO2007029740A1
Publication/Patent Number: WO2007029740A1
Publication date: 2007-03-15
Application number: 2006317651
Filing date: 2006-09-06
Abstract: Provided is an imaging apparatus which indicates suitable tilt guide in accordance with an aspect ratio and the like of a photographing image. The imaging apparatus is provided with a tilt detecting means for detecting a tilt of the imaging apparatus; an indicating means which can indicate the tilt guide in accordance with the detection output from the tilt detecting means by superimposing the indication onto the photographing image; an aspect ratio setting means for setting the aspect ratio of the photographing image; and an indication control means for controlling whether to indicate the tilt guide or not Provided is an imaging apparatus which indicates suitable tilt guide in accordance with an aspect ratio and the like of a photographing image. The imaging apparatus is provided with a tilt detecting means for detecting a tilt of the imaging apparatus; an indicating means which ...more ...less
10
JP2006004250A
Publication/Patent Number: JP2006004250A
Publication date: 2006-01-05
Application number: 2004181004
Filing date: 2004-06-18
Abstract: PROBLEM TO BE SOLVED: To provide a car insurance system that drivers are the objective of compensation
11
WO2005080008A1
Publication/Patent Number: WO2005080008A1
Publication date: 2005-09-01
Application number: 2005003079
Filing date: 2005-02-18
Abstract: An apparatus (A) for forming a catalyst layer by electrodepositing an electrode power (10) on electrolyte film serving as a base (2). A screen (5) is held out of contact with the base (2)
12
WO03078930A1
Publication/Patent Number: WO03078930A1
Publication date: 2003-09-25
Application number: 0202515
Filing date: 2002-03-15
Abstract: A vehicular navigation device for presenting a navigation content by continuing a predetermined inputting operation for navigation till the last step even if the used state changes. The navigation device comprises a presentation unit (6) for presenting a navigation content
13
US20020018923A1
Publication/Patent Number: US20020018923A1
Publication date: 2002-02-14
Application number: 09/912,460
Filing date: 2001-07-26
Inventor: Kawahara, Tatsuya  
Abstract: A polymer electrolyte fuel cell includes a high-temperature portion and a low-temperature portion in a cell plane. The fuel cell includes an oxidant gas passage where an oxidant gas flows. An oxidant gas flow is directed from the high-temperature portion to the low-temperature portion of the cell so that water generated during operation recirculates in the oxidant gas passage to permit self-humidification of the fuel cell. A polymer electrolyte fuel cell includes a high-temperature portion and a low-temperature portion in a cell plane. The fuel cell includes an oxidant gas passage where an oxidant gas flows. An oxidant gas flow is directed from the high-temperature portion to the low-temperature ...more ...less
14
US20020031696A1
Publication/Patent Number: US20020031696A1
Publication date: 2002-03-14
Application number: 09/911,731
Filing date: 2001-07-25
Abstract: A polymer electrolyte fuel cell includes an electrode including a catalyst layer and a diffusion layer. The catalyst layer is divided into a plurality of portions including an upstream portion and a downstream portion along a reactant gas flow direction. The upstream portion of the catalyst layer has a structure for preventing a drying-up of the cell, and the downstream portion of the catalyst layer has a structure for preventing a flooding of the cell. A structure of the diffusion layer also may differ between at the upstream portion and at the downstream portion. A polymer electrolyte fuel cell includes an electrode including a catalyst layer and a diffusion layer. The catalyst layer is divided into a plurality of portions including an upstream portion and a downstream portion along a reactant gas flow direction. The upstream portion of ...more ...less
15
US20010049048A1
Publication/Patent Number: US20010049048A1
Publication date: 2001-12-06
Application number: 09/149,080
Filing date: 1998-09-08
Inventor: Kawahara, Tatsuya  
Abstract: A paste-like ink is prepared by dissolving camphor in an alcoholic solvent and dispersing fine carbon particles with a catalyst carried thereon in the solvent (step S100). A sheet-like electrode-forming member is formed on an electrolyte membrane by screen printing the paste-like ink thus obtained (step S102). The electrode-forming member is dried at 80° C. for one hour, in order to deposit camphor included in the electrode-forming member as a pore-forming agent (step S104). The electrode-forming member and the electrolyte membrane are joined with each other by hot pressing (step S106). The joint body of the electrode-forming member and the electrolyte membrane is dried under vacuum at 80° C. for three hours, in order to sublimate and remove camphor depositing in the electrode-forming member (step S108). This gives an electricity-generating layer that is a joint body of an electrode having a plurality of pores and the electrolyte membrane. The manufacturing process of the invention thus gives a joint body of an electrode having sufficient gas permeability and electrical conductivity and an electrolyte membrane. A paste-like ink is prepared by dissolving camphor in an alcoholic solvent and dispersing fine carbon particles with a catalyst carried thereon in the solvent (step S100). A sheet-like electrode-forming member is formed on an electrolyte membrane by screen printing the ...more ...less
16
US20010024748A1
Publication/Patent Number: US20010024748A1
Publication date: 2001-09-27
Application number: 09/810,279
Filing date: 2001-03-19
Abstract: The invention improves operability in forming a catalyst electrode, and improves performance of a fuel cell. A catalyst-loaded carbon is dispersed in a mixed solution of an azeotropic solvent and ion exchanged water. An electrolyte solution is added to the dispersed solution. A solvent, such as ethanol or the like, is added to adjust the viscosity and the water content of the solution, thereby providing an electrode catalyst solution. The use of the obtained solution as an ink for forming a catalyst layer through printing improves printing characteristic and drying characteristic. The invention improves operability in forming a catalyst electrode, and improves performance of a fuel cell. A catalyst-loaded carbon is dispersed in a mixed solution of an azeotropic solvent and ion exchanged water. An electrolyte solution is added to the dispersed solution. A ...more ...less
17
US20010053468A1
Publication/Patent Number: US20010053468A1
Publication date: 2001-12-20
Application number: 09/773,544
Filing date: 2001-02-02
Abstract: A device and a method for simply and accurately evaluating performance of fuel cells have been provided. Hydrogen gas and carbon monoxide gas are caused to flow into a sample holder where an electrode catalyst sample is laid, and the amount of carbon monoxide gas discharged therefrom is detected. The amount of carbon monoxide gas adsorbed by the electrode catalyst sample is calculated based on the amount of supplied carbon monoxide gas and the amount of detected carbon monoxide gas. The output voltage of a fuel cell is calculated based on a correlation between calculated amounts of carbon monoxide gas adsorbed by the electrode catalyst and output voltages of the fuel cell. A device and a method for simply and accurately evaluating performance of fuel cells have been provided. Hydrogen gas and carbon monoxide gas are caused to flow into a sample holder where an electrode catalyst sample is laid, and the amount of carbon monoxide gas discharged ...more ...less
18
BR9911883A
Publication/Patent Number: BR9911883A
Publication date: 2001-03-27
Application number: 9911883
Filing date: 1999-07-02
Abstract: Patente de Invenção: 'DISPOSITIVO REFORMADOR DE COMBUSTìVEL'. A presente invenção é direcionada a um dispositivo reformador de combustível que produz um gás rico em hidrogênio a partir de um hidrocarboneto e vapor. A reação de reforma do vapor que produz o gás rico em hidrógenio a partir do hidrocarboneto e vapor é endotérmica. Uma técnica conhecida fornece o calor necessário para a reação de reforma do vapor por uma reação de oxidação exotérmica prosseguindo em paralelo com a reação de reforma do vapor. Essa técnica conhecida pode Patente de Invenção: 'DISPOSITIVO REFORMADOR DE COMBUSTìVEL'. A presente invenção é direcionada a um dispositivo reformador de combustível que produz um gás rico em hidrogênio a partir de um hidrocarboneto e vapor. A reação de reforma do vapor que produz o gás rico em hidrógen ...more ...less
19
WO0002812A1
Publication/Patent Number: WO0002812A1
Publication date: 2000-01-20
Application number: 9903603
Filing date: 1999-07-02
Abstract: An apparatus for the reforming of fuels wherein the heat required for a steam reforming reaction forming a hydrogen-rich gas from hydrocarbons and steam