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No. Publication Number Title Publication/Patent Number Publication/Patent Number Publication Date Publication Date
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1 US2005003253A1
Fuel cell and a temperature control system for the fuel cell
Publication/Patent Number: US2005003253A1 Publication Date: 2005-01-06 Application Number: 10/864,702 Filing Date: 2004-06-09 Inventor: Enjoji, Naoyuki   Wariishi, Yoshinori   Sasamoto, Kazuya   Kosaka, Yuichiro   Assignee: Enjoji, Naoyuki   Wariishi, Yoshinori   Sasamoto, Kazuya   Kosaka, Yuichiro   IPC: H01M008/04 Abstract: A heat medium passage for controlling the temperature of the electric power generation section is separated from the electric power generation section of a fuel cell including a plurality of separators and electric power generating elements alternately laminated in a lamination direction. A heat plate exchanges heat with at least one of the heat medium passage and a heat medium in the heat medium passage and is connected to the separators to provide an electrical conduction between the separators in the lamination direction. An electrical insulator is provided for insulation between the heat medium and the heat plate. Another heat medium passage may be further provided on the other side. A temperature control system for the fuel cell may include a burner for supplying the heated heat medium to the heat medium passage and may comprise first and second fluidic passages independently to selectively use the first and second fluidic passage. A heat medium passage for controlling the temperature of the electric power generation section is separated from the electric power generation section of a fuel cell including a plurality of separators and electric power generating elements alternately laminated in a lamination ...More ...Less
2 US2005008928A1
Apparatus and method for removing residue in a fuel cell system
Publication/Patent Number: US2005008928A1 Publication Date: 2005-01-13 Application Number: 10/747,884 Filing Date: 2003-12-29 Inventor: Kim, Sae   Assignee: Kim, Sae   IPC: H01M008/04 Abstract: When operation of a fuel cell system has completed, residue in the fuel cell system such as water, fuel gas, and oxidant are removed by adsorbent stored in an adsorbent tank, which is connected to flow fields of the fuel cell system.
3 US2005014046A1
Fuel cell with integrated heat exchanger
Publication/Patent Number: US2005014046A1 Publication Date: 2005-01-20 Application Number: 10/645,520 Filing Date: 2003-08-22 Inventor: Tachtler, Joachim   Wetzel, Franz-josef   Assignee: Bayerische Motoren Werke Aktiengesellschaft   IPC: H01M008/04 Abstract: A fuel cell includes at least one individual cell with an electrolyte/electrode unit, as well as at least one conducting end or intermediate plate, via which a gaseous reactant can be supplied to an electrode at least in one inlet region. In order to lower power losses, as well as the need for gas circulation, the end or intermediate plate is designed so that in terms of flow, a heat exchange region is incorporated before an inlet region, and heat is removed from an anode side of the individual cell in the heat exchanger. A fuel cell includes at least one individual cell with an electrolyte/electrode unit, as well as at least one conducting end or intermediate plate, via which a gaseous reactant can be supplied to an electrode at least in one inlet region. In order to lower power losses, as well ...More ...Less
4 US2005153182A1
Fuel cell power generation system
Publication/Patent Number: US2005153182A1 Publication Date: 2005-07-14 Application Number: 10/500,274 Filing Date: 2003-05-14 Inventor: Ozeki, Masataka   Nakamura, Akinari   Miyauchi, Shinji   Assignee: Matsushita Electric Industrial Co., Ltd   IPC: H01M008/04 Abstract: A stable and high reliability fuel cell electricity-generating device capable of generating electricity even in the case of sudden drop of load power. A fuel cell generating electric power from a fuel and an oxidizer, a fuel processor producing fuel to be supplied into the fuel cell from an electricity-generating material, a combustion device combusting a residual fuel gas unconsumed in the fuel cell to raise the temperature of the fuel processor, and an electric power generation instructing means of determining the electric power generated by the fuel cell, wherein when the electric power generation instructing means decreases the electric power generated by the fuel cell depending on the decrease of load power to be supplied, the rate at which the generated electric power is decreased is made different depending on the change of the temperature of the fuel processor. A stable and high reliability fuel cell electricity-generating device capable of generating electricity even in the case of sudden drop of load power. A fuel cell generating electric power from a fuel and an oxidizer, a fuel processor producing fuel to be supplied into the fuel ...More ...Less
5 US2005142400A1
Safe purging of water from fuel cell stacks
Publication/Patent Number: US2005142400A1 Publication Date: 2005-06-30 Application Number: 10/989,163 Filing Date: 2004-11-15 Inventor: Turco, Francesco   Fuller, Ware   Assignee: Nuvera Fuel Cells   IPC: H01M008/04 Abstract: Methods and devices are provided for purging fuel cells of water and accumulated non-reactive gases whereby the systems are constructed to dilute any emitted hydrogen below its inflammability limit for increased safety.
6 US2005142402A1
High differential pressure electrochemical cell
Publication/Patent Number: US2005142402A1 Publication Date: 2005-06-30 Application Number: 11/059,183 Filing Date: 2005-02-16 Inventor: Skoczylas, Thomas   Christopher, Matthew   Shiepe, Jason   Dristy, Mark   Molter, Trent   Assignee: Skoczylas, Thomas   Christopher, Matthew   Shiepe, Jason   Dristy, Mark   Molter, Trent   IPC: H01M008/04 Abstract: An electrochemical cell capable of operating in pressure differentials exceeding about 2,000 psi, using a porous electrode. The porous electrode comprises a catalyst adsorbed on or in a porous support that is disposed in intimate contact and fluid communication with the electrolyte membrane. An electrochemical cell capable of operating in pressure differentials exceeding about 2,000 psi, using a porous electrode. The porous electrode comprises a catalyst adsorbed on or in a porous support that is disposed in intimate contact and fluid communication with the ...More ...Less
7 US2005142408A1
Direct antifreeze cooled fuel cell power plant with passive water management
Publication/Patent Number: US2005142408A1 Publication Date: 2005-06-30 Application Number: 10/748,473 Filing Date: 2003-12-30 Inventor: Breault, Richard   Assignee: Breault, Richard   IPC: H01M008/04 Abstract: The plant (60) includes at least one fuel cell (10, 62) having a wetproofed anode support (20) and a cathode support (24) for directing reactant streams adjacent catalysts (14, 16). A porous anode cooler plate (26) has its fuel channels (28A, 28B, 28C, 28D) secured adjacent the anode support (20). A porous cathode water management plate (38) has its oxidant channels (40A, 40B, 40C, 40D) secured adjacent the cathode support (24). A direct antifreeze solution passes only through coolant channels (32A, 32B, 32C, 32D) of the anode cooler plate (26) so the solution cannot poison the catalysts (14, 16), while fuel cell product water flows passively through the water management plate (38) and water management channels (44A, 44B, 44C, 44D) defined in the plate (38) to humidify reactant streams and be discharged from the fuel cell (62). The plant (60) includes at least one fuel cell (10, 62) having a wetproofed anode support (20) and a cathode support (24) for directing reactant streams adjacent catalysts (14, 16). A porous anode cooler plate (26) has its fuel channels (28A, 28B, 28C, 28D) secured adjacent the ...More ...Less
8 US2005136297A1
Stop method for fuel cell system and fuel cell system
Publication/Patent Number: US2005136297A1 Publication Date: 2005-06-23 Application Number: 11/015,869 Filing Date: 2004-12-16 Inventor: Inai, Shigeru   Yoshida, Hiromichi   Kato, Hideo   Hayashi, Katsumi   Jinba, Ryo   Matsumoto, Nobuyuki   Takai, Takahiro   Utsunomiya, Masao   Assignee: Honda Motor Co., Ltd.   IPC: H01M008/04 Abstract: A stop method for a fuel cell system including a fuel cell unit in which hydrogen is supplied to an anode, and air is supplied to a cathode so as to generate electrical power via an electrochemical reaction. The stop method includes the steps of stopping supply of hydrogen to the anode, electrically connecting the anode and the cathode via an electrical load, and supplying air to the anode. A stop method for a fuel cell system including a fuel cell unit in which hydrogen is supplied to an anode, and air is supplied to a cathode so as to generate electrical power via an electrochemical reaction. The stop method includes the steps of stopping supply of hydrogen to ...More ...Less
9 US2005136303A1
Fuel cell system, operating method thereof, program and recording medium
Publication/Patent Number: US2005136303A1 Publication Date: 2005-06-23 Application Number: 11/013,637 Filing Date: 2004-12-17 Inventor: Kobayshi, Susumu   Matsumoto, Toshihiro   Tomizawa, Takeshi   Kusakabe, Hiroki   Assignee: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.   IPC: H01M008/04 Abstract: A fuel cell system comprising the stack having a gas distribution means of guiding reaction gas into electrodes of respective single cells, the gas supplying sections for supplying the reaction gas to the stack, the gas humidifying section for humidifying the reaction gas which are disposed between the gas supplying sections and the electrode inlet of the gas distribution means, and the controlling section for controlling the water vapor content of the reaction gas supplied at least to one of the electrodes so as to exceed the saturated water vapor content at the temperature of at least one of the electrode inlets of the gas distribution means. A fuel cell system comprising the stack having a gas distribution means of guiding reaction gas into electrodes of respective single cells, the gas supplying sections for supplying the reaction gas to the stack, the gas humidifying section for humidifying the reaction gas which ...More ...Less
10 US2005136307A1
Fuel cell and fuel cell stack
Publication/Patent Number: US2005136307A1 Publication Date: 2005-06-23 Application Number: 11/016,677 Filing Date: 2004-12-17 Inventor: Tsunoda, Tadashi   Assignee: Honda Motor Co., Ltd.   IPC: H01M008/04 Abstract: A fuel cell system includes a fuel cell stack, a fluid unit including a heat exchanger for heating an oxygen-containing gas, before the oxygen-containing gas is supplied to the fuel cell stack, and a casing for containing the fuel cell stack and the fluid unit. A first output terminal is electrically connected to one electrode, and provided adjacent to an end plate. A second output terminal is electrically connected to another electrode through a tightening member, and provided adjacent to the end plate. The fluid unit is provided adjacent to an end plate. A fuel cell system includes a fuel cell stack, a fluid unit including a heat exchanger for heating an oxygen-containing gas, before the oxygen-containing gas is supplied to the fuel cell stack, and a casing for containing the fuel cell stack and the fluid unit. A first output ...More ...Less
11 US2005129997A1
Hydrogen generator, method of operating hydrogen generator, and fuel cell system
Publication/Patent Number: US2005129997A1 Publication Date: 2005-06-16 Application Number: 10/989,556 Filing Date: 2004-11-17 Inventor: Maenishi, Akira   Ukai, Kunihiro   Asou, Tomonori   Mukai, Yuji   Tamura, Yoshio   Assignee: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.   IPC: H01M008/04 Abstract: A hydrogen generator comprises a controller configured to control supply of a material from a material supply portion and supply of water from a water supply portion. The controller monitors a temperature of a water evaporator and a temperature of a reforming catalyst layer, and based on this monitored result, the controller properly controls water supply from the water supply portion to the water evaporator. A hydrogen generator comprises a controller configured to control supply of a material from a material supply portion and supply of water from a water supply portion. The controller monitors a temperature of a water evaporator and a temperature of a reforming catalyst layer, and ...More ...Less
12 US2005130000A1
Fuel cell system and method for discharging reaction gas from fuel cell
Publication/Patent Number: US2005130000A1 Publication Date: 2005-06-16 Application Number: 10/989,691 Filing Date: 2004-11-15 Inventor: Ojima, Kuniaki   Yoshikawa, Shinji   Matsumoto, Yuji   Uehara, Junji   Ueda, Kenichiro   Assignee: Honda Motor Co., Ltd.   IPC: H01M008/04 Abstract: A fuel cell system includes: a fuel cell which generates electrical power from a chemical reaction of a reaction gas; a discharge path for discharging the reaction gas supplied to the fuel cell; a discharge valve which is provided in the discharge path and discharges the reaction gas from the discharge path; and valve control units for controlling opening of the discharge valve, wherein the valve control units are adapted such that, since the discharge valve has been opened by a valve open command issued by one of the valve control units, the valve control units prohibit the discharge valve from being opened by a valve open command issued by any of the other valve control units until a predetermined time period elapses. A fuel cell system includes: a fuel cell which generates electrical power from a chemical reaction of a reaction gas; a discharge path for discharging the reaction gas supplied to the fuel cell; a discharge valve which is provided in the discharge path and discharges the ...More ...Less
13 US2005118473A1
Fuel cell device and related control method
Publication/Patent Number: US2005118473A1 Publication Date: 2005-06-02 Application Number: 10/501,097 Filing Date: 2003-08-07 Inventor: Yamada, Kazuhiro   Assignee: Nissan Motor Co., LTD.   IPC: H01M008/04 Abstract: A fuel cell device and related control method are disclosed wherein a water tank 5 is disposed downstream of a fuel cell stack 1 and a hot medium flow passage 25 is formed on an outer periphery of the water tank 5 to pass antifreeze solution. During cold start-up, a three-way vale 13 is switched over to allow antifreeze solution to flow through the fuel cell stack 1 and a heat exchanger 17, by which antifreeze solution is heated and supplied to the fuel cell stack 1 and the water tank 5 to heat these components, whereby the water tank 5 is heated to thaw frozen ice. A fuel cell device and related control method are disclosed wherein a water tank 5 is disposed downstream of a fuel cell stack 1 and a hot medium flow passage 25 is formed on an outer periphery of the water tank 5 to pass antifreeze solution. During cold start-up, a three-way ...More ...Less
14 US2005118492A1
Fuel-cell reactant delivery and circulation device
Publication/Patent Number: US2005118492A1 Publication Date: 2005-06-02 Application Number: 10/997,256 Filing Date: 2004-11-24 Inventor: Lundsgaard, Jorgen   Kaas, John   Odgaard, Madeleine   Thomas, David   Assignee: Lundsgaard, Jorgen   Kaas, John   Odgaard, Madeleine   Thomas, David   IPC: H01M008/04 Abstract: Fuel cells equipped with a self-contained gas- or air-lift which circulates fuel through the channels of the separator plate of the fuel cell via gaseous carbon dioxide produced by the reaction of the membrane electrode assembly and the fuel are provided. Also provided are exemplary self-contained gas- or air-lifts useful for production of these fuel cells. Fuel cells equipped with a self-contained gas- or air-lift which circulates fuel through the channels of the separator plate of the fuel cell via gaseous carbon dioxide produced by the reaction of the membrane electrode assembly and the fuel are provided. Also provided are ...More ...Less
15 US2005106433A1
Cooling device for fuel cell
Publication/Patent Number: US2005106433A1 Publication Date: 2005-05-19 Application Number: 10/980,235 Filing Date: 2004-11-04 Inventor: Takemoto, Shinichiro   Assignee: NISSAN MOTOR CO., LTD.   IPC: H01M008/04 Abstract: A cartridge-type ion removal filter 15 to remove ions from the cooling liquid in the cooling liquid circulation passage 20 is disposed in the middle of a cooling liquid circulation passage 20 to circulate the cooling liquid between a fuel cell stack 11 and a radiator 12. The ion removal filter 15 is disposed in the cooling liquid circulation passage so that an opening 26b of a vessel main body 26 is in a higher position than the highest level “H” of the cooling liquid in the reservoir tank 14. A cartridge-type ion removal filter 15 to remove ions from the cooling liquid in the cooling liquid circulation passage 20 is disposed in the middle of a cooling liquid circulation passage 20 to circulate the cooling liquid between a fuel cell stack 11 and a radiator 12. The ion ...More ...Less
16 US2005106441A1
Hydrogen cartridge, fuel cell system and method of attaching hydrogen cartridge
Publication/Patent Number: US2005106441A1 Publication Date: 2005-05-19 Application Number: 10/949,284 Filing Date: 2004-09-27 Inventor: Yamamoto, Jun   Shibata, Masaaki   Assignee: CANON KABUSHIKI KAISHA   IPC: H01M008/04 Abstract: There are provided a hydrogen cartridge for a fuel cell for supplying hydrogen to a fuel cell body comprising a hydrogen storage chamber for storing hydrogen, a movable part which is movably connected to the hydrogen storage chamber and has a hydrogen flow path for allowing hydrogen to flow therethrough, and a hydrogen supply port which is formed integrally with the movable part and communicates with the hydrogen flow path, wherein the cartridge takes an open state in which the hydrogen storage chamber, the hydrogen flow path and the hydrogen supply port are connected to each other, or a closed state in which the hydrogen storage chamber, the hydrogen flow path and the hydrogen supply port are not connected to each other, by movement of the movable part or the hydrogen storage chamber, and a fuel cell system having the hydrogen cartridge incorporated therein, whereby it is possible to prevent leakage of hydrogen due to unstable connection between the hydrogen cartridge and a fuel cell body and to assure safety in handling. There are provided a hydrogen cartridge for a fuel cell for supplying hydrogen to a fuel cell body comprising a hydrogen storage chamber for storing hydrogen, a movable part which is movably connected to the hydrogen storage chamber and has a hydrogen flow path for allowing ...More ...Less