WO2005004270A1 - 燃料電池装置及び燃料電池の燃料供給方法 - Google Patents
燃料電池装置及び燃料電池の燃料供給方法 Download PDFInfo
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- WO2005004270A1 WO2005004270A1 PCT/JP2004/009609 JP2004009609W WO2005004270A1 WO 2005004270 A1 WO2005004270 A1 WO 2005004270A1 JP 2004009609 W JP2004009609 W JP 2004009609W WO 2005004270 A1 WO2005004270 A1 WO 2005004270A1
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- WIPO (PCT)
- Prior art keywords
- fuel
- fuel cell
- concentration
- mixed solution
- methanol
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0444—Concentration; Density
- H01M8/04447—Concentration; Density of anode reactants at the inlet or inside the fuel cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04186—Arrangements for control of reactant parameters, e.g. pressure or concentration of liquid-charged or electrolyte-charged reactants
- H01M8/04194—Concentration measuring cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04492—Humidity; Ambient humidity; Water content
- H01M8/045—Humidity; Ambient humidity; Water content of anode reactants at the inlet or inside the fuel cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04537—Electric variables
- H01M8/04604—Power, energy, capacity or load
- H01M8/04619—Power, energy, capacity or load of fuel cell stacks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04776—Pressure; Flow at auxiliary devices, e.g. reformer, compressor, burner
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04791—Concentration; Density
- H01M8/04798—Concentration; Density of fuel cell reactants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04828—Humidity; Water content
- H01M8/04835—Humidity; Water content of fuel cell reactants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention provides optimal power generation for the required output mode.
- the present invention relates to a fuel cell device capable of doing so. More specifically, the present invention relates to a fuel cell device and a fuel supply method for a fuel cell, which can optimize the concentration of a mixed solution as a fuel according to a required output mode.
- a fuel cell is a power generation device that generates power by supplying fuel to a fuel electrode and supplying air containing oxygen as an oxidant to an air electrode. In recent years, it has attracted attention as a power generation device that does not pollute the environment because the substance is water.
- DMFC direct methanol fuel cell
- Force S known.
- DMFC direct methanol fuel cell
- the anode reaction of the fuel cell does not proceed only with methanol, which is the fuel, so a mixed solution of methanol and water is mixed with the fuel cell. Power is generated by supplying it to the anode.
- methanol and water are suitable in advance.
- a method of producing a mixed solution mixed with a sharp composition and supplying the mixed solution to the DMFC while maintaining the concentration of the mixed solution at a constant level. While collecting pure methanol in the mixed solution in which the methanol has been consumed, the mixed solution is circulated in the circulation system, and the DM
- the DMFC system can be simplified, but the energy density of the fuel body decreases. If the concentration of methanol in the mixed solution is increased to increase the energy density, the degradation rate of the power generator (MEA: Membrane and Electrode Assemblies) constituting the DMFC increases.
- MEA Membrane and Electrode Assemblies
- the methanol concentration at which the maximum output is obtained is different from the methanol concentration at which the maximum efficiency is obtained, and the methanol and water are mixed as soon as possible.
- the methanol concentration cannot be changed according to the DMFC operating conditions.
- the mixing is generally performed so that the maximum concentration of DMFC can be obtained.
- a method of maintaining the methanol concentration of the solution has been adopted, and tracking of the load of the fuel cell has been performed by coordinating the fuel cell and the secondary battery. Therefore, the maximum output cannot be obtained by adjusting the methanol concentration to obtain the maximum efficiency, and the maximum output cannot be obtained, and the mixed solution, which is the fuel, is converted to the output required for the fuel cell. Optimal accordingly It was difficult to adjust the concentration to a suitable level.
- a fuel cell device that can generate electric power by optimizing the concentration of the mixed solution according to the load condition of the fuel cell.
- the fuel cell device performs concentration adjustment using a liquid fuel, and adjusts the concentration of the liquid fuel to an optimum concentration according to the fuel cell and an output mode required for the fuel cell. And means. ADVANTAGE OF THE INVENTION
- concentration of a liquid fuel can be adjusted so that it may become an optimal density
- the optimal concentration for example, when power is generated at all times using liquid fuel whose concentration has been adjusted to obtain maximum power generation efficiency and maximum output is required In this case, power can be generated using liquid fuel of the appropriate concentration.
- the concentration adjusting means can adjust the concentration of the liquid fuel by reusing the liquid fuel used for power generation in the fuel cell, and the resources required for power generation Can be used without waste.
- the concentration adjusting means may include a plurality of fuel mixing means, and each of the plurality of fuel mixing means may generate a liquid fuel having a predetermined concentration.
- a required fuel mixer is selected according to the required output mode. Liquid fuel can be supplied to the fuel cell from the selected fuel mixture.
- the fuel cell device may include a concentration detecting means for detecting the concentration of the liquid fuel.
- a concentration detecting means for detecting the concentration of the liquid fuel.
- the concentration detecting means may be arranged between the fuel cell and the plurality of fuel mixers, so that the substantial concentration of the liquid fuel consumed by the fuel cell can be detected more accurately. >-Can also be issued.
- a fuel supply method for a fuel cell according to the present invention detects an output mode required for a fuel cell that generates electric power using liquid fuel, and optimizes the concentration of the liquid fuel in accordance with the output mode K. It is characterized by adjusting the concentration. According to the fuel supply method for a fuel cell according to the present invention, it is possible to supply a liquid fuel having an optimum concentration according to an output mode required for the fuel cell.
- FIG. 1 is a graph showing characteristics of a fuel cell, and is a graph showing a relationship between a cell density and a power density with respect to a current density.
- Figure 2 is a graph showing the relationship between the power density and the methanol concentration. It is.
- FIG. 3 is a configuration diagram showing an example of the fuel cell device according to the present invention.
- FIG. 4 is a configuration diagram illustrating an example of the fuel cell device according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a graph showing the relationship between the methanol concentration and the fuel cell characteristics when the inventors of the present invention generate power using DMFC.
- the horizontal axis in FIG. 1 is the current density, and the left vertical axis is DMFCC.
- FIG. 4 shows a cell voltage of a power generation cell to be formed.
- the right vertical axis shows the power density of DMFC.
- the methanol concentration of the mixed solution used as the fuel is determined.
- the cell voltage and the electric power with respect to the current density are determined for each methanol concentration.
- the density relationship was investigated.
- the conditions of the methanol concentration 1.0, 0.6, 0.4 mo1 / L
- A, B, and C conditions respectively.
- the cell voltage tended to decrease as the current density increased, and was the same under the conditions A, B, and C.
- the power density increases as the current density increases, but the ratio of the increase in the power density to the current density tends to decrease as the value of the current density increases. Also, the power density tended to take the maximum value at a specific value of the current density. In the case of condition A, 4009609
- FIG. 2 is a graph showing the relationship between the maximum output density obtained from the characteristic curve showing the cell voltage and the power density of the DMFC shown in FIG. 1 and the output density at a constant cell voltage.
- Fig. 2 shows four levels of maximum output, 450 mV output, 500 mV output, and 40 OmV output as parameters. Show me.
- the methanol concentration should be around 0.6 mo1 / L. It can be seen that by adjusting this, a higher output density can be obtained at the same cell voltage than when the methanol concentration is 1.0 or 0.4 mo1 / L. In other words, it can be seen that there is an optimum methanol concentration at which the power density can be obtained most efficiently with respect to the power density required for the power generation cell. In addition, at an output density of about 40 to 70 mWZ cm2, the cell voltage becomes 450 to 50 OmV.
- power generation efficiency can be increased by generating power at an optimum methanol concentration according to the required output.
- an output of 90 mW / cm 2 or more can be obtained by adjusting the methanol concentration to around lmo1 ZL.
- the output mode in this specification refers to a load that includes qualitative characteristics of the power generation cell, such as output voltage or output power, and specific conditions, such as a maximum value or a specific numerical range in each characteristic.
- FIG. 3 is a configuration diagram of the fuel cell device according to the present example.
- the fuel cell device according to the present invention is configured on the basis of the above-described basic idea of the present invention. It has a mechanism that can be adjusted according to the operating conditions.
- the fuel cell device 1 of this example is a direct methanol fuel cell, but the fuel is not limited to methanol, and any fuel cell that generates power using liquid fuel can be used. Of course, anything can be used.
- the fuel cell device 1 is composed of a methanol tank 2, mixers 3a and 3b, valves 11 and 12, 13 and 14, 15 and 16 and 17 and 18; 22 2, filters 4, 8, 9, cooler 5, cell stack 6 cooler drain 7, blower 41, and piping connecting these parts to form a fluid flow path .
- the pump 21 sucks the methanol from the tank 2 with the nozzle 11 open and supplies the methanol to the mixers 3a and 3b.
- the mixers 3a and 3b are provided with concentration sensors 31 and 32, respectively, for monitoring the methanol concentration of the mixed solution.
- the gas containing water is discharged from the outlet on the air electrode side of the cell stack 6, and the water separated from this gas is mixed.
- the methanol concentration of the mixed solution can be adjusted by supplying it to the devices 3a and 3b. Also, water can be separately supplied to the mixers 3a and 3b. Furthermore, by monitoring the methanol concentration with the concentration sensors 31 and 32, the concentration of the mixed solution can be controlled with high accuracy.
- the mixers 3 a and 3 b generate mixed solutions adjusted to have different concentrations, respectively, and supply the cell stack 6 with a mixed solution having a required methanol concentration.
- the required methanol concentration is the optimum methanol concentration for the output mode required for the cell stack 6, and is, for example, used in the above-described evaluation.
- the mixed solution 3a is adjusted to have a methanol concentration of 0.6 mo1 / L.
- the mixer 3b generates a mixed solution whose concentration has been adjusted to have a methanol concentration of 1 mol / L.
- a mixed solution of 0.6 mol / L is supplied to the cell stack 6 from the mixer 3a.
- a 1 mo1 / L mixed solution is supplied to the cell stack 6 from the mixer 3b. Supply.
- valve 13 In the flow path connecting the mixers 3a, 3b and the cell stack 6, there are provided a valve 13, a filter 4, a pulp 14, and a cooler 5. Thus, the flow path is secured with the valves 13 and 14 opened. After the mixed solution supplied from the mixers 3a and 3b is filtered to remove impurities, the temperature is reduced by the cooler 5 and the cell stack is removed.
- the flow path to the air intake of the cell / restack which explains the operation of Jinjin, is provided with blowers 41, 18 and 18 which are taken in by the blower 41. After the impurities are removed by the filter 9, the air is supplied to the Celster V-c 6 via the valve 18 and O o
- the cell stack 6 sends the mixed solution used for power generation to the mixer 3b.
- the mixed solution of o, ⁇ is re-used to produce the mixed solution supplied from the mixer 3b to the cell stack 6. Used.
- the concentration sensor 32 provided in the mixer 3b monitors the methanol concentration of the mixed solution in the mixer 3b, and the mixer 3b monitors the mixing concentration in the mixer 3b. The amount of water or fuel flowing into the mixer 3b can be adjusted so that the methanol concentration of the solution becomes a predetermined value.
- Cooler Gas 7 exhausts the air after the water has been separated.
- the filter 8 removes impurities from the water separated by the cooler drain and supplies the mixed water to the mixers 3 a and 3 b via the pump 22 and the pulp 17.
- the flow of air and moisture from the pump 6 to the mixers 3a and 3b is performed by the pump 22 driving force.
- the mixers 3a and 3b each have a predetermined methanol concentration.
- the adjusted mixed solution is supplied to the cell stack V6, and the fuel and moisture contained in the mixed solution and gas discharged from the cell stack 6 can be reused. Even if the output mode required for the cell stack 6 changes frequently, the output mode required by switching the mixer that supplies the mixed solution to the cell stack 6 is also required.
- the optimal mixed solution for the cell stack can be supplied to the cell stack. Also, cell stack
- the mixer 3 a If the maximum efficiency operation and the maximum output operation are frequently changed with respect to 6, add methanol and water as needed to adjust the methanol concentration of the mixed solution. As a result, an overflow may occur in the circulation system in which the mixed solution flows.
- the mixer 3 a according to the circulation system constituting the fuel cell device 1 of this example, the mixer 3 a
- FIG. 4 is a configuration diagram of the fuel cell device according to the present example.
- D M D M
- the fuel cell device 100 supplies air as an oxidant to the fuel cell 101, the fuel electrode side supply piping system 50 for supplying fuel to the fuel electrode of the fuel cell 101, and the fuel cell 101.
- Anode-side supply piping system 60 that discharges products generated by power generation from the fuel electrode side of the fuel cell 101
- Anode-side exhaust piping system 70 that exhausts power generation products from the fuel electrode side A piping system 80 is provided.
- the DC-DC converter 113 connected to the fuel cell 101 and the load 114 connected to the DC-DC converter 113 are connected to the fuel cell 101. From the power.
- the control controller 112 controls the driving of each device constituting the fuel cell device 100.
- the fuel cell 101 has a stack structure in which power generation cells having an electrolyte membrane sandwiched between an air electrode and a fuel electrode are stacked.
- This electrolyte membrane is a solid polymer electrolyte membrane widely used in direct methanol fuel cells, and for example, a fluororesin-based ion conductive membrane can be used.
- the fuel electrode side supply piping system 50 is provided with a metal tank 104, a metal tank 104, and a metal tank supply pump 105, which sucks up the metal tank from the force.
- Mixer 106 that produces a mixed solution of methanol and water supplied from a fuel supply pump 105, a mixed solution that receives the mixed solution from the fuel mixer 106, and a fuel cell 1
- a water-soluble circulating pump 103 to be supplied to 01 and a concentration sensor 1-15 consisting of a flow path between the fuel cell 101 and the fuel-soluble circulating pump 103 Is done.
- the air electrode side supply piping system 60 is composed of a piping 61 for taking in air from the outside of the fuel cell device 100, and an air supply pump 102 for supplying air to the fuel cell 101.
- the fuel electrode side exhaust piping system 70 includes a carbon dioxide remover 1 16 that removes carbon dioxide contained in the mixed solution discharged from the fuel cell 101, and a fuel cell device 10 that removes the exhaust gas from which carbon dioxide has been removed. It is composed of a processing unit 110 that discharges to the outside of 0.
- the air electrode side discharge piping system 80 is a gas-liquid separator 108 that separates moisture from the exhaust gas discharged from the fuel cell 101, a moisture reservoir 109 that stores the separated moisture, a moisture reservoir Electromagnetic pulp provided in the flow path from 109 to the fuel mixer 106, and the exhaust gas from which moisture is separated by the gas-liquid separator 108 is discharged to the outside of the fuel cell device 100 It is composed of the device 110.
- the processing device 110 is included in both the fuel electrode side discharge piping system 70 and the air electrode side discharge piping system 80.
- the methanol supply pump 105 sucks up the methanol from the methanol tank 104 and supplies it to the fuel mixer 106.
- Fuel The water-soluble circulation pump 103 supplies the mixed solution to the fuel cell 101 from the fuel mixer 106 that mixes methanol and water to generate a mixed solution.
- the fuel mixer 106 can adjust the methanol concentration of the mixed solution, and adjusts the mixed solution concentration to obtain the optimum methanol concentration according to the load 114. .
- information on the concentration of methanol detected by the concentration sensor 115 is sent to the control controller, and the fuel mixer 106 adjusts the concentration of methanol in the mixed solution. Referred to.
- the concentration sensor 115 is located immediately before the fuel cell 101, that is, the fuel mixer 106 and the fuel JP2004 / 009609
- the mixed solution consumed in the fuel cell 101 is circulated to the fuel mixer 106 also serving as a carbon dioxide remover, and is again supplied to the fuel cell 101 by the water-soluble fuel circulation pump 103.
- the fuel mixer 106 which also serves as ash dioxide removal ⁇ , separates carbon dioxide from the mixed liquid discharged by the fuel cell 101, and separates the carbon dioxide from the mixed liquid.
- the mixed solution itself is the cooling medium for the fuel cell.
- the fuel cell device 100 does not require a separate cooling channel. Therefore, the temperature rise of the fuel cell 101 can be suppressed without separately flowing cooling water to the fuel cell device 100.
- the fuel cell device using liquid fuel such as the fuel cell device 100 of the present embodiment has a higher compression ratio than the case where gaseous fuel such as hydrogen gas is used because the mixed solution itself has incompressibility. It has the advantage that a back pressure valve is not required.
- the fuel cell 101 sends the mixed solution used for power generation to the carbon dioxide remover, and the mixed solution from which the carbon dioxide has been removed by the carbon dioxide remover 116 is again subjected to the predetermined measurement by the fuel mixer 106. It is used to produce a mixed solution with a Knoll concentration. If the mixed solution used for power generation contains water, this water is also mixed with methanol by the fuel mixer 106 to generate power for the fuel cell 101. Reused. Therefore, the fuel cell 101 2004/009609
- the mixed solution can be caused to flow by the driving force generated in the fuel aqueous solution circulation pump 103.
- the air supply pump 102 takes in air, which is an oxidizing agent, from the atmosphere via a pipe 61 and supplies it to the fuel cell 101.
- the air used for power generation in the fuel cell 101 is separated from moisture by the gas-liquid separator 108 and discharged to the atmosphere via the processing device 110.
- the water separated from the air discharged from the fuel cell 101 is stored in the water reservoir 109 and then sent to the fuel mixer 106 to be used to generate a mixed solution.
- an electromagnetic valve 111 provided between the moisture storage 109 and the fuel mixer 106 controls the supply amount of water supplied from the moisture storage 109 to the fuel mixer 106. adjust.
- the electromagnetic valve 111 may be controlled by the control controller 112 in accordance with the concentration of methanol and the load 114 detected by the concentration sensor 115.
- the opening and closing of the electromagnetic valve 1 11 can be performed in conjunction with the fuel mixer 106.
- the fuel cell 101 is optimal according to the load 111 2004/009609
- the fuel mixer 106 is controlled so as to be able to generate 15 different powers, and the mixed solution having the optimum methanol concentration for the load 114 is used for the power generation condition of the fuel cell. It is generated freely according to the requirements and supplied to the fuel cell.
- the air discharged from the fuel cell 101 is sent to the blower 41.
- the blower 41 separates the moisture contained in the air, and the separated moisture is sent to the moisture storage 42.
- the moisture stored in the moisture reservoir 42 is sent to the fuel mixer 106 while the flow rate is adjusted by the electromagnetic valve 111, and is reused for power generation by the fuel cell 101.
- the gas-liquid separator 108 sends the air from which the water has been separated to the processing device 110, and the processing device 110 discharges the exhaust gas to the outside of the fuel cell device 100.
- the gas-liquid separator 108, the water storage device 109, and the fuel mixer 106 may be provided with a heater so that the remaining water does not freeze.
- extra space may be provided in the gas-liquid separator 108, the water storage unit 109, and the fuel mixer 106 so that these devices are not damaged by frozen water. . Furthermore, by forming the pipes constituting the fuel cell device 100 from an elastic material, it is possible to prevent the pipes from being damaged by freezing of water. . Industrial applicability
- the fuel cell device of the present invention it is possible to generate electric power by using a fuel having an optimum concentration according to the output mode required for the fuel cell, and to improve the efficiency with respect to the output of the fuel cell. It can generate power well. Further, according to the fuel cell device of the present invention, The fuel concentration can be quickly switched to the optimal concentration according to the required output mode switching. This makes it possible to quickly switch the fuel concentration to the optimum concentration according to the required output mode, while continuing to generate power from the fuel cell. Therefore, it is possible to constantly generate power with good power generation efficiency.
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Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/563,508 US7201980B2 (en) | 2003-07-07 | 2004-06-30 | Fuel cell apparatus and method for feeding a fuel for fuel cell |
Applications Claiming Priority (2)
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JP2003-271581 | 2003-07-07 | ||
JP2003271581A JP4697380B2 (ja) | 2003-07-07 | 2003-07-07 | 燃料電池装置及び燃料電池の燃料供給方法 |
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US (1) | US7201980B2 (ja) |
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WO2005110045A2 (en) * | 2004-05-11 | 2005-11-24 | Mti Microfuel Cells Inc. | Single pump fuel cell system |
US7977001B2 (en) * | 2005-09-14 | 2011-07-12 | Hitachi, Ltd. | Electronic equipment with fuel cell-power supply unit |
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JP4529373B2 (ja) * | 2003-04-28 | 2010-08-25 | ソニー株式会社 | 燃料電池および燃料電池の運転方法 |
JP4665381B2 (ja) * | 2003-07-07 | 2011-04-06 | ソニー株式会社 | 燃料電池システム及び電気機器 |
DE102004056952A1 (de) * | 2004-11-25 | 2006-06-08 | Nucellsys Gmbh | Brennstoffzellensystem mit Flüssigkeitsabscheider |
JP4882240B2 (ja) * | 2005-02-23 | 2012-02-22 | 富士通株式会社 | 燃料電池 |
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JP4984019B2 (ja) * | 2005-05-11 | 2012-07-25 | 日本電気株式会社 | 固体高分子型燃料電池及び固体高分子型燃料電池の運転方法 |
EP1760816A3 (en) * | 2005-08-31 | 2010-05-05 | Samsung SDI Co., Ltd. | Method and apparatus for water management in direct methanol fuel cell system using heat exchanger |
JP4870980B2 (ja) | 2005-12-14 | 2012-02-08 | 株式会社東芝 | 燃料電池システム及びその制御方法 |
JP2008310996A (ja) | 2007-06-12 | 2008-12-25 | Toshiba Corp | 燃料電池システム及びその制御方法 |
TWI344719B (en) * | 2007-09-11 | 2011-07-01 | Iner Aec Executive Yuan | Fuel supplying and controlling method and fuel cell apparatus using the same |
DE102007062165A1 (de) * | 2007-12-21 | 2009-06-25 | Sabik Informationssysteme Gmbh | Verfahren und Vorrichtung zum Betrieb einer Brennstoffzelle |
DK2291880T3 (da) | 2008-04-24 | 2014-05-05 | Ird Fuel Cells As | Metode og system til at bestemme og styre methanolkoncentration i DMFC baseret på impedansmålinger |
KR100993467B1 (ko) | 2008-06-17 | 2010-11-09 | 삼성에스디아이 주식회사 | 직접 메탄올형 연료전지 스택 및 직접 메탄올형 연료전지시스템 |
WO2010058811A1 (ja) * | 2008-11-21 | 2010-05-27 | 株式会社日立製作所 | 燃料電池 |
JP2010225470A (ja) * | 2009-03-24 | 2010-10-07 | Daihatsu Motor Co Ltd | 燃料電池システム |
CN102403525B (zh) * | 2010-09-16 | 2016-02-03 | 流体公司 | 具有渐进析氧电极/燃料电极的电化学电池系统 |
JP6021630B2 (ja) * | 2012-12-19 | 2016-11-09 | ダイハツ工業株式会社 | 燃料電池システム |
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Also Published As
Publication number | Publication date |
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JP4697380B2 (ja) | 2011-06-08 |
JP2005032610A (ja) | 2005-02-03 |
US7201980B2 (en) | 2007-04-10 |
US20060159968A1 (en) | 2006-07-20 |
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