US Patent No: 7,326,480
Number of patents in Portfolio can not be more than 2000
Fuel cell power system and method of controlling a fuel cell power system
Stats
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Feb 5, 2008
Issued date -
Apr 22, 2004
filing date -
10/830,929
serial no -
In Force
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Importance
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Abstract
A fuel cell power system includes a fuel cell which has an optimal voltage; an energy storage device having a nominal voltage substantially similar to the optimal voltage of the fuel cell; and an electrical switch that, in operation, selectively electrically couples the fuel cell and the energy storage device to charge the energy storage device. A method includes providing a fuel cell having a nominal voltage; providing an energy storage device having a nominal voltage which is substantially similar to the nominal voltage of the fuel cell and electrically coupling the energy storage device to a load; and selectively electrically coupling the fuel cell to the energy storage device to substantially maintain the energy storage device above a predetermined voltage threshold.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,849,253 Method of making an electrochemical cell electrode | 21 | 1987 | |
| 4,769,297 Solid polymer electrolyte fuel cell stack water management system | 123 | 1987 | |
| 4,824,741 Solid polymer electrolyte fuel cell system with porous plate evaporative cooling | 33 | 1988 | |
| 4,826,742 Water and heat management in solid polymer fuel cell stack | 55 | 1988 | |
| 4,994,331 Fuel cell evaporative cooling using fuel as a carrier gas | 89 | 1989 | |
| 5,045,414 Reactant gas composition for fuel cell potential control | 35 | 1989 | |
| 5,069,985 Plaque fuel cell stack | 16 | 1990 | |
| 5,262,249 Internally cooled proton exchange membrane fuel cell device | 33 | 1991 | |
| 5,264,299 Proton exchange membrane fuel cell support plate and an assembly including the same | 91 | 1991 | |
| 5,523,175 Plate-shaped fuel cell component | 40 | 1994 | |
| 5,726,105 Composite article | 16 | 1995 | |
| 6,051,192 Control system and method for controlling a gas generating system | 29 | 1997 | |
| 5,931,658 Fuel cell power plant furnace | 16 | 1997 | |
| 6,015,634 System and method of water management in the operation of a fuel cell | 32 | 1998 | |
| 6,007,931 Mass and heat recovery system for a fuel cell power plant | 94 | 1998 | |
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| 4,276,355 Fuel cell system configurations | 45 | 1980 | |
| 4,562,124 Air electrode material for high temperature electrochemical cells | 70 | 1985 | |
| 4,598,028 High strength porous support tubes for high temperature solid electrolyte electrochemical cells | 26 | 1985 | |
| 4,702,971 Sulfur tolerant composite cermet electrodes for solid oxide electrochemical cells | 54 | 1986 | |
| 4,767,518 Cermet electrode | 37 | 1986 | |
| 4,728,584 Fuel cell generator containing self-supporting high gas flow solid oxide electrolyte fuel cells | 64 | 1986 | |
| 4,847,172 Low resistance fuel electrodes | 24 | 1988 | |
| 5,035,962 Layered method of electrode for solid oxide electrochemical cells | 55 | 1990 | |
| 5,106,706 Oxide modified air electrode surface for high temperature electrochemical cells | 42 | 1990 | |
| 5,200,279 Solid oxide fuel cell generator | 23 | 1991 | |
| 5,273,838 Double interconnection fuel cell array | 22 | 1992 | |
| 5,306,574 Method of low temperature operation of an electrochemical cell array | 16 | 1992 | |
| 5,342,704 Method of making an air electrode material having controlled sinterability | 31 | 1993 | |
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| 5,234,722 Solid electrolyte film, solid oxide fuel cell comprising such a solid electrolyte film, and processes for producing such film and solid oxide fuel cell | 26 | 1990 | |
| 5,176,967 Solid oxide fuel cells | 11 | 1991 | |
| 5,188,910 Solid oxide fuel cells | 17 | 1991 | |
| 5,114,803 Solid oxide fuel cell and porous electrode for use in the same | 31 | 1991 | |
| 5,266,419 Method of producing an air electrode material for solid electrolyte type fuel cells | 11 | 1991 | |
| 5,312,700 Solid oxide fuel cell and method for producing the same | 19 | 1992 | |
| 5,308,712 Air electrode and solid electrolyte fuel cell having the same | 23 | 1992 | |
| 5,358,735 Method for manufacturing solid oxide film and method for manufacturing solid oxide fuel cell using the solid oxide film | 25 | 1992 | |
| 5,292,599 Cell units for solid oxide fuel cells and power generators using such cell units | 17 | 1992 | |
| 5,281,490 Process for producing solid oxide fuel cells | 14 | 1993 | |
| 6,025,084 Electrochemical cell having gas flow channels surrounded by solid electrolyte and interconnecter | 12 | 1997 | |
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| 4,476,198 Solid oxide fuel cell having monolithic core | 64 | 1983 | |
| 4,804,592 Composite electrode for use in electrochemical cells | 71 | 1987 | |
| 4,876,115 Electrode assembly for use in a solid polymer electrolyte fuel cell | 157 | 1988 | |
| 4,943,494 Solid oxide fuel cell matrix and modules | 39 | 1988 | |
| 4,973,530 Fuel cell water transport | 70 | 1989 | |
| 5,154,987 Highly conductive electrolyte composites containing glass and ceramic, and method of manufacture | 9 | 1990 | |
| 5,213,911 Solid-oxide fuel cell electrolyte | 17 | 1991 | |
| 5,232,794 Ionic conductors for solid oxide fuel cells | 30 | 1991 | |
| 5,248,566 Fuel cell system for transportation applications | 119 | 1991 | |
| 5,330,859 Solid oxide fuel cell with single material for electrodes and interconnect | 15 | 1992 | |
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| 5,200,278 Integrated fuel cell power generation system | 120 | 1991 | |
| 5,252,410 Lightweight fuel cell membrane electrode assembly with integral reactant flow passages | 110 | 1991 | |
| 5,470,671 Electrochemical fuel cell employing ambient air as the oxidant and coolant | 67 | 1993 | |
| 5,382,478 Electrochemical fuel cell stack with humidification section located upstream from the electrochemically active section | 67 | 1994 | |
| 5,750,281 Edge manifold assembly for an electrochemical fuel cell stack | 40 | 1995 | |
| 5,874,182 Method and apparatus for reducing reactant crossover in a liquid feed electrochemical fuel cell | 36 | 1997 | |
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| 5,292,600 Hydrogen power cell | 40 | 1992 | |
| 5,863,671 Plastic platelet fuel cells employing integrated fluid management | 78 | 1995 | |
| 5,858,567 Fuel cells employing integrated fluid management platelet technology | 70 | 1996 | |
| 5,776,625 Hydrogen-air fuel cell | 35 | 1997 | |
| 5,925,322 Fuel cell or a partial oxidation reactor or a heat engine and an oxygen-enriching device and method therefor | 33 | 1997 | |
| 6,051,331 Fuel cell platelet separators having coordinate features | 63 | 1997 | |
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| 5,798,186 Method and apparatus for commencing operation of a fuel cell electric power generation system below the freezing temperature of water | 106 | 1996 | |
| 5,789,091 Electrochemical fuel cell stack with compression bands | 55 | 1996 | |
| 5,863,673 Porous electrode substrate for an electrochemical fuel cell | 28 | 1996 | |
| 5,935,726 Method and apparatus for distributing water to an ion-exchange membrane in a fuel cell | 37 | 1997 | |
| 5,993,987 Electrochemical fuel cell stack with compression bands | 23 | 1998 | |
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| 4,661,411 Method for depositing a fluorocarbonsulfonic acid polymer on a support from a solution | 85 | 1986 | |
| 5,164,060 Ion exchange membrane having increased efficiency in proton exchange processes | 25 | 1991 | |
| 5,302,269 Ion exchange membrane/electrode assembly having increased efficiency in proton exchange processes | 17 | 1991 | |
| 5,395,705 Electrochemical cell having an electrode containing a carbon fiber paper coated with catalytic metal particles | 37 | 1993 | |
| 5,654,109 Composite fuel cell membranes | 26 | 1995 | |
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| 4,185,131 Screen printing method for making an electrochemical cell electrode | 36 | 1978 | |
| 4,287,232 Dry floc method for making an electrochemical cell electrode | 49 | 1978 | |
| 4,778,579 Method and apparatus for operating a fuel cell in combination with an electrochemical cell to produce a chemical product | 11 | 1987 | |
| 4,795,683 High power density evaporatively cooled ion exchange membrane fuel cell | 24 | 1987 | |
| 4,818,637 Hydrogen/halogen fuel cell with improved water management system | 32 | 1988 | |
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| 4,478,917 Fuel cell | 63 | 1983 | |
| 4,894,355 Flexible, water-repellent baked carbon plate, its production, fuel cell electrode, fuel cell electrode plate and its production and fuel cell | 29 | 1988 | |
| 5,350,643 Solid polymer electrolyte type fuel cell | 63 | 1993 | |
| 5,500,292 Polymer electrolyte hydrogen-oxygen fuel cell where the polymer electrolyte has a water repellency gradient and a catalytically active component concentration gradiem across oxygen electrode | 33 | 1994 | |
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| 4,816,036 Fabrication of ceramic trilayers for a monolithic solid oxide fuel cell | 29 | 1986 | |
| 5,162,167 Apparatus and method of fabricating a monolithic solid oxide fuel cell | 40 | 1990 | |
| 5,356,730 Monolithic fuel cell having improved interconnect layer | 26 | 1993 | |
| 5,342,705 Monolithic fuel cell having a multilayer interconnect | 25 | 1993 | |
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| 5,149,601 Solid oxide fuel cell | 13 | 1991 | |
| 5,368,951 Solid oxide fuel cell | 29 | 1993 | |
| 5,385,792 Solid oxide fuel cell | 19 | 1993 | |
| 5,354,626 Distributor for a solid oxide fuel cell and manufacturing process thereof | 20 | 1993 | |
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| 5,217,822 Solid oxide electrolyte type fuel cell and method for fabricating the same | 22 | 1991 | |
| 5,122,425 Electrolyte/electrode assembly for a solid electrolyte fuel cell | 21 | 1991 | |
| 6,045,934 Solid polymer electrolyte fuel cell | 33 | 1998 | |
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| 5,316,871 Method of making membrane-electrode assemblies for electrochemical cells and assemblies made thereby | 111 | 1993 | |
| 5,763,113 PEM fuel cell monitoring system | 148 | 1996 | |
| 5,707,755 PEM/SPE fuel cell | 52 | 1996 | |
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| 5,346,780 Fuel cell and method for producing an electrode used therefor | 50 | 1992 | |
| 5,344,721 Solid polymer electrolyte fuel cell apparatus | 89 | 1993 | |
| 5,364,711 Fuel cell | 80 | 1993 | |
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| 5,916,699 Hybrid energy storage system | 61 | 1997 | |
| 6,080,501 Fuel cell with integral fuel storage | 59 | 1998 | |
| 6,127,058 Planar fuel cell | 74 | 1998 | |
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| 6,030,718 Proton exchange membrane fuel cell power system | 84 | 1997 | |
| 6,096,449 Fuel cell and method for controlling same | 90 | 1998 | |
| 6,468,682 Ion exchange membrane fuel cell | 34 | 2000 | |
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| 5,169,731 Solid oxide fuel cell and method for manufacturing the same | 22 | 1991 | |
| 5,279,906 Interconnection material for solid oxide fuel cell | 16 | 1992 | |
| 5,372,895 Solid oxide fuel cell and method for manufacturing the same | 14 | 1992 | |
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| 5,290,642 Method of fabricating a monolithic solid oxide fuel cell | 28 | 1990 | |
| 5,256,499 Monolithic solid oxide fuel cells with integral manifolds | 31 | 1990 | |
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| 5,187,025 Unitized fuel cell structure | 46 | 1992 | |
| 5,989,741 Electrochemical cell system with side-by-side arrangement of cells | 49 | 1998 | |
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| 5,242,764 Near ambient, unhumidified solid polymer fuel cell | 76 | 1991 | |
| 5,521,020 Method for catalyzing a gas diffusion electrode | 33 | 1994 | |
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| 4,795,536 Hydrogen separation and electricity generation using novel three-component membrane | 28 | 1987 | |
| 4,797,185 Hydrogen separation and electricity generation using novel electrolyte membrane | 33 | 1987 | |
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| 5,366,818 Solid polymer fuel cell systems incorporating water removal at the anode | 105 | 1992 | |
| 5,773,160 Electrochemical fuel cell stack with concurrent flow of coolant and oxidant streams and countercurrent flow of fuel and oxidant streams | 66 | 1996 | |
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| 5,419,980 Fuel cell stack and method of pressing together the same | 38 | 1993 | |
| 5,534,362 Fuel cell stack and method of pressing together the same | 30 | 1995 | |
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| 5,059,497 Composite ion-conductive electrolyte member | 26 | 1990 | |
| 5,266,421 Enhanced membrane-electrode interface | 19 | 1992 | |
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| 6,051,329 Solid oxide fuel cell having a catalytic anode | 15 | 1998 | |
| 6,051,330 Solid oxide fuel cell having vias and a composite interconnect | 35 | 1998 | |
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| 5,234,777 Membrane catalyst layer for fuel cells | 98 | 1991 | |
| 2005/0048,335 Apparatus and method for regulating hybrid fuel cell power system output | 11 | 2003 | |
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| 5,244,753 Solid electrolyte fuel cell and method for manufacture of same | 16 | 1992 | |
| 6,210,823 Polymer electrolyte fuel cell | 11 | 1999 | |
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| 5,049,459 Fuel cell | 19 | 1990 | |
| 5,286,579 Fuel cell | 13 | 1991 | |
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| 5,561,202 Polymer electrolyte membrane, and process for the production thereof | 67 | 1995 | |
| 5,599,639 Acid-modified polybenzimidazole fuel cell elements | 61 | 1995 | |
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| 5,084,144 High utilization supported catalytic metal-containing gas-diffusion electrode, process for making it, and cells utilizing it | 78 | 1990 | |
| 5,132,193 Generation of electricity with fuel cell using alcohol fuel | 53 | 1991 | |
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| 5,945,232 PEM-type fuel cell assembly having multiple parallel fuel cell sub-stacks employing shared fluid plate assemblies and shared membrane electrode assemblies | 46 | 1998 | |
| 6,007,933 Fuel cell assembly unit for promoting fluid service and electrical conductivity | 49 | 1998 | |
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| 4,670,702 Controller for fuel cell power system | 51 | 1986 | |
| 5,334,463 Hybrid fuel battery system and the operation method thereof | 89 | 1992 | |
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| 4,851,303 Solid compositions for fuel cells, sensors and catalysts | 52 | 1986 | |
| 4,948,680 Solid compositions for fuel cell electrolytes | 27 | 1988 | |
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| 5,192,627 Closed loop reactant/product management system for electrochemical galvanic energy device | 35 | 1991 | |
| 5,316,869 Closed loop reactant/product management system for electrochemical galvanic energy devices | 49 | 1993 | |
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| 5,372,896 Treated solid polymer electrolyte membrane for use in a fuel cell and fuel cell including the treated solid polymer electrolyte membrane | 16 | 1993 | |
| 5,783,324 Fuel cell including a single sheet of a polymer electrolyte membrane (PEM), the PEM being divided into regions of varying electrical and ionic conductivity | 23 | 1996 | |
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| 5,686,197 Fuel cell | 17 | 1995 | |
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| 4,648,955 Planar multi-junction electrochemical cell | 31 | 1985 | |
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| 5,356,728 Cross-flow electrochemical reactor cells, cross-flow reactors, and use of cross-flow reactors for oxidation reactions | 59 | 1993 | |
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| 4,883,497 Formation of thin walled ceramic solid oxide fuel cells | 53 | 1988 | |
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| 5,449,697 Ion exchange membrane used for a fuel cell | 20 | 1994 | |
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| 4,769,296 Batteries comprising high energy and power density methanol/air fuel cells | 16 | 1987 | |
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| 5,143,801 Solid oxide fuel cells, and air electrode and electrical interconnection materials therefor | 27 | 1990 | |
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| 4,863,813 Primary source of electrical energy using a mixture of fuel and oxidizer | 32 | 1988 | |
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| 5,186,806 Ceramic distribution members for solid state electrolyte cells and method of producing | 35 | 1990 | |
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| 5,525,436 Proton conducting polymers used as membranes | 170 | 1994 | |
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| 5,336,570 Hydrogen powered electricity generating planar member | 37 | 1993 | |
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| 5,035,961 Internal cross-anchoring and reinforcing of multi-layer conductive oxides | 13 | 1989 | |
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| 5,037,525 Composite electrodes for use in solid electrolyte devices | 36 | 1990 | |
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| 5,804,326 Integrated reactant and coolant fluid flow field layer for an electrochemical fuel cell | 35 | 1996 | |
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| 5,677,074 Gas diffusion electrode | 50 | 1996 | |
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| 5,350,641 Solid state fuel cell and process for the production thereof | 35 | 1993 | |
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| 4,469,579 Solid polymer electrolytes and electrode bonded with hydrophylic fluorocopolymers | 53 | 1982 | |
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| 5,532,072 Serially arranged fuel cells for large scale power generation | 21 | 1994 | |
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| 5,330,860 Membrane and electrode structure | 121 | 1993 | |
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| 4,192,906 Electrochemical cell operation and system | 36 | 1978 | |
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| 4,826,741 Ion exchange fuel cell assembly with improved water and thermal management | 94 | 1987 | |
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| 5,863,672 Polymer electrolyte membrane fuel cell | 33 | 1997 | |
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| 6,326,763 System for controlling power flow in a power bus generally powered from reformer-based fuel cells | 24 | 1999 | |
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| 5,624,769 Corrosion resistant PEM fuel cell | 61 | 1995 | |
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| 5,523,177 Membrane-electrode assembly for a direct methanol fuel cell | 80 | 1994 | |
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| 5,272,017 Membrane-electrode assemblies for electrochemical cells | 134 | 1992 | |
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| 6,028,414 Fuel cell stand-by energy supply system | 13 | 1998 | |
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| 5,069,987 Solid oxide fuel cell assembly | 32 | 1990 | |
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| 4,755,376 Process for operating a dual compartment anode structure | 9 | 1987 | |
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| 4,973,531 Arrangement for tightening stack of fuel cell elements | 39 | 1989 | |
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| 4,927,793 Proton conductive material and method of manufacturing thereof | 15 | 1988 | |
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| 5,759,712 Surface replica fuel cell for micro fuel cell electrical power pack | 170 | 1997 | |
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| 5,869,202 Hydrophillic graphite fuel cell electrode for use with an ionomer membrane fuel cell | 10 | 1997 | |
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| 5,403,461 Solid electrolyte-electrode system for an electrochemical cell | 38 | 1993 | |
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| 4,724,191 Bonded hydrogen conducting solid electrolytes | 10 | 1986 | |
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| 5,403,675 Sulfonated polymers for solid polymer electrolytes | 73 | 1993 | |
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| 4,500,612 Temperature control device for a fuel cell | 17 | 1982 | |
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| 4,686,158 Solid electrolyte fuel cell and method for preparing it | 30 | 1985 | |
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| 4,985,315 Material for the conduction of protons and method of making the same | 14 | 1989 | |
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| 4,818,735 Tetragonal system tunnel-structured compound AX(GA8MYGA(8+X)-YTI16-X0 56), and cation conductor and heat insulating material composed thereof | 7 | 1987 | |
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| 5,395,704 Solid-oxide fuel cells | 19 | 1992 | |
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| 4,435,252 Method for producing a reticulate electrode for electrolytic cells | 17 | 1982 | |
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| 5,047,298 Closed loop reactant/product management system for electrochemical galvanic energy devices | 28 | 1990 | |
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| 5,407,758 Material for the metal components of high-temperature fuel cell systems | 11 | 1993 | |
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| 5,304,430 Acid-base concentration cell for electric power generation | 13 | 1993 | |
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| 5,547,777 Fuel cell having uniform compressive stress distribution over active area | 69 | 1994 | |
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| 5,358,799 Fuel cell | 23 | 1993 | |
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| 5,223,353 Solid electrolyte, electrochemical device including the same and method of fabricating the solid electrolyte | 49 | 1991 | |
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| 6,010,798 PEM fuel cell | 23 | 1997 | |
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| 4,770,955 Solid electrolyte fuel cell and assembly | 34 | 1987 | |
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| 5,270,131 Module for a fuel cell battery | 28 | 1991 | |
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| 4,797,190 Ionic semiconductor materials and applications thereof | 25 | 1986 | |
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| 5,246,792 Structure of ion exchange membrane | 42 | 1992 | |
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| 4,988,582 Compact fuel cell and continuous process for making the cell | 25 | 1990 | |
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| 5,783,325 Gas diffusion electrodes based on poly(vinylidene fluoride) carbon blends | 34 | 1996 | |
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| 5,298,235 Electrochemical devices based on single-component solid oxide bodies | 30 | 1991 | |
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| 5,190,834 Composite membrarnes and electrochemical cells containing them | 40 | 1991 | |
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| 5,130,210 Stabilized zirconia solid electrolyte and process for preparation thereof | 31 | 1990 | |
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| 6,255,008 Fuel cell system capable of reducing electric power loss | 55 | 1999 | |
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| 4,749,632 Sintering aid for lanthanum chromite refractories | 29 | 1986 | |
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| 5,599,638 Aqueous liquid feed organic fuel cell using solid polymer electrolyte membrane | 159 | 1993 | |
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| 6,024,848 Electrochemical cell with a porous support plate | 88 | 1998 | |
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| 5,358,620 Allyl polyelectrolytes | 21 | 1993 | |
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| 5,639,516 Method for making a gas diffusion electrode | 9 | 1995 | |
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| 6,214,484 Fuel cell arrangement having a methanol reformer with an energy storage unit and method for controlling the energy flow of the fuel cell arrangement | 43 | 1999 | |
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| 6,007,932 Tubular fuel cell assembly and method of manufacture | 48 | 1996 | |
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| 4,463,065 Fuel cell and method for conducting gas-phase oxidation | 21 | 1982 | |
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| 4,647,359 Electrocatalytic gas diffusion electrode employing thin carbon cloth layer | 29 | 1985 | |
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| 5,607,785 Polymer electrolyte electrochemical cell and process of preparing same | 32 | 1995 | |
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| 5,401,589 Application of fuel cells to power generation systems | 197 | 1993 | |
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| 5,154,986 Shut-off device for fuel cell system | 44 | 1991 | |
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| 4,219,443 Method of preparing a cathode current collector for use in an electrochemical cell | 22 | 1978 | |
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| 5,290,323 Manufacturing method for solid-electrolyte fuel cell | 19 | 1992 | |
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| 5,338,622 Thermal control apparatus | 34 | 1993 | |
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| 4,510,211 Fuel cell electrolyte supply system and apparatus | 9 | 1983 | |
| 4,629,537 Compact, light-weight, solid-oxide electrochemical converter | 52 | 1985 | |
| 5,219,673 Cell structure for electrochemical devices and method of making same | 53 | 1991 | |
Patent Citation Ranking
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