CN100429820C - Fuel cell stack - Google Patents

Fuel cell stack Download PDF

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Publication number
CN100429820C
CN100429820C CNB2005100907768A CN200510090776A CN100429820C CN 100429820 C CN100429820 C CN 100429820C CN B2005100907768 A CNB2005100907768 A CN B2005100907768A CN 200510090776 A CN200510090776 A CN 200510090776A CN 100429820 C CN100429820 C CN 100429820C
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China
Prior art keywords
plate
flow field
fuel cell
anode
electric current
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CNB2005100907768A
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Chinese (zh)
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CN1917266A (en
Inventor
董俊卿
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BYD Co Ltd
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BYD Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority to CNB2005100907768A priority Critical patent/CN100429820C/en
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Priority to DE602006014388T priority patent/DE602006014388D1/en
Priority to DE602006009240T priority patent/DE602006009240D1/de
Priority to US11/910,830 priority patent/US20080305382A1/en
Priority to PCT/CN2006/000541 priority patent/WO2006105715A1/en
Priority to KR1020077025665A priority patent/KR100889105B1/en
Priority to JP2008504604A priority patent/JP5017255B2/en
Priority to AT06722192T priority patent/ATE468622T1/en
Priority to PCT/CN2006/000540 priority patent/WO2006105714A1/en
Priority to AT06722193T priority patent/ATE443350T1/en
Priority to JP2008504605A priority patent/JP5081808B2/en
Priority to EP06722193A priority patent/EP1872428B1/en
Priority to KR1020077024498A priority patent/KR100887274B1/en
Priority to US11/910,865 priority patent/US7846608B2/en
Priority to EP06722192A priority patent/EP1875542B1/en
Publication of CN1917266A publication Critical patent/CN1917266A/en
Application granted granted Critical
Publication of CN100429820C publication Critical patent/CN100429820C/en
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    • 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

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Abstract

The fuel cell pile includes end plate, current conduction board, multiple pole plates, multiple membrane electrodes, and seal washers, bolts and cap nuts. Pole plates include close jointed flow field board of anode, and flow field board of cathode. Seal washers are arranged around the penetration holes on the flow field board of cathode, as well as arranged around center hole, and outer circumference on the flow field board of anode. Bolts are separated from fuel channels in the invention. Reacting masses of cathode and anode can be diffused to any parts of cathode and anode. Thus, resultant of reaction and nonreactant can be eliminated in time. Advantages are: simple structure, wide adaptability, suitable to different devices by changing size and shape of fuel cell.

Description

A kind of fuel cell pack
Technical field
The present invention relates to fuel cell field, relate in particular to a kind of fuel cell pack.
Background technology
Fuel cell is a kind of chemical energy to be converted into the device of electric energy, and it has the efficient height, characteristics such as pollutes and noise is low few.Fuel cell can be an individual fuel cells, also can be the fuel battery that is made of a plurality of individual fuel cells.
Individual fuel cells generally comprises proton exchange membrane 1, anode 2, negative electrode 3 and guide plate 4, as shown in Figure 1.
Proton exchange membrane 1 is a kind of permeable air-locked pellicle, and it has the proton conduction effect, can also prevent oxidant and fuel generation mixed explosion.
Anode 2 is a kind of gas-diffusion electrodes, and its backing material generally is made up of the charcoal fiber or the carbon cloth of conduction.Between anode 2 and proton exchange membrane 1, be the catalyticing anode catalyst for reaction.This anode catalyst be generally platinum powder end, platiniferous alloy powder, load on the platinum on the carrier or load on the alloy powder of the platiniferous on the carrier.The alloy of described platiniferous contains platinum and is selected from ruthenium, tin, iridium, osmium, the rhenium one or more.Described carrier is to have the higher specific surface and the carrier of conduction, as active carbon.
Negative electrode 3 also is a kind of gas-diffusion electrode, and its formation is identical with anode construction, and difference is that the catalyst between negative electrode 3 and the proton exchange membrane 1 is the catalytic cathode catalyst for reaction.This cathod catalyst is generally the platinum powder end, loads on the platinum powder end on the carrier.
The outside of anode 2 and negative electrode 3 is a guide plate 4, and guide plate 4 can be made by graphite material or metal material.
In fuel cell, generally use air or oxygen as oxidant, hydrogen or methyl alcohol, ethanol etc. are as fuel.For example, be fuel with methyl alcohol, air is as oxidant, and following reaction takes place in fuel cell when carrying out electrochemical reaction:
Positive C H 3OH+H 2O → CO 2+ 6H ++ 6e (1)
Negative electrode 3/2O 2+ 6H ++ 6e → 3H 2O, (2)
Anode and negative electrode cause following overall reaction to take place:
CH 3OH+3/2O 2→CO 2+2H 2O (3)
The above-mentioned electrochemical reaction of anode 2 and negative electrode 3 makes between anode 2 and the negative electrode 3 and produces potential difference, and the electronics that anode 2 generates is caught by negative electrode 3 at last by anode 2 outer field guide plate 4 and external current conductor.The proton that anode 2 generates then sees through proton exchange membrane 1 and is directly passed to negative electrode 3, has so just formed electric current.Voltage during the individual fuel cells operate as normal in order to obtain higher voltage and power, often is together in series above-mentioned individual fuel cells in actual applications and forms the form of battery pile between 0.3V～1.0V.
Disclosed among existing fuel cell pack such as the patent CN1374714A, comprise end plate 5, a plurality of element cells 6 are arranged on the fuel distribution header 7 at element cell 6 centers, pass the bolt 8 of described fuel distribution header 7, and nut 9.Wherein, described element cell 6 comprises electrolyte membrane 10, lays respectively at the oxygen electrode 11 and the fuel electrode 12 of described electrolyte membrane 10 both sides, is positioned at the flow-field plate 13 in oxygen electrode 11 outsides and lays respectively at described flow-field plate 13 and the demarcation strip 14 in fuel electrode 12 outsides, as shown in Figure 2.
Fuel distribution header 7 in this fuel cell pack is attached on the bolt 8, and therefore when fuel was organic-fuel, use can cause the corrosion of bolt 8 and the pollution of fuel for a long time, and for the sealing of fuel higher requirement is arranged also.
Simultaneously, its cathode flow field has " dead band " (i.e. " dead-end " part) for the sealing flow field in inside, flow field, be unfavorable for the diffusion of oxidant and the discharge of product water.If oxidant uses air, then also can cause the enrichment of nitrogen in " dead band " of inside, flow field part.And its anode flow field is similarly the sealing flow field, also can form " dead band " in inside, flow field, and the inlet and outlet piping of fuel is same pipeline, does not have power can make fuel diffusion arrive the anode surface of fuel cell.And " dead band " of anode flow field part can not be in time gets rid of the water of coming from the negative electrode reverse osmosis, thereby can cause the enrichment of water.If organic-fuels such as fuel use methyl alcohol, then the product C O that generates at anode 2Equally can be in " dead band " in flow field part enrichment.These all can cause the reduction with battery performance of reducing of cell reaction area.
Summary of the invention
The bolt that the present invention is directed in the fuel cell pack of prior art is corroded easily, the fuel vulnerable to pollution, anode and cathode has the shortcoming of " dead band " part in the flow field, provide a kind of bolt can not be corroded, fuel is difficult for contaminated, there is not " dead band " part in the anode and cathode flow field, and simple in structure, the fuel cell pack that assembling is compact.
Fuel cell pack provided by the invention comprises first end plate, second end plate, the first electric current drainage plate, the second electric current drainage plate, a plurality of pole plate, a plurality of membrane electrode, seal washer, bolt and nut.Wherein, be formed with centre bore respectively on described first end plate, second end plate, the first electric current drainage plate, the second electric current drainage plate, pole plate and the membrane electrode.First connector and second connector are arranged on described second end plate.First through hole corresponding with first connector and second connector and second through hole are arranged on the described pole plate.Have respectively on described second electric current drainage plate and the membrane electrode with described second end plate on first connector and first through hole on second connector and the described pole plate and the corresponding hole of second through hole.On the described nut perforate is arranged.And, described pole plate comprises anode flow field board and the cathode flow field plate that fits tightly, be respectively arranged with seal washer around first through hole on the cathode flow field plate and second through hole, around the centre bore on the anode flow field board and the excircle of plate also be respectively arranged with seal washer.
Fuel cell pack provided by the invention has not only been realized separating of bolt and fuel channel, fuel is transmitted in the inside battery sealing under the situation that does not contact bolt, thereby can not corrode bolt, pollution feul.Inlet and outlet piping with fuel separates simultaneously, makes the concentration gradient that forms fuel diffusion on the galvanic anode surface to be beneficial to fuel diffusion.And the present invention has the flow-field plate of divergence expression and racetrack guiding gutter by employing, make the reactive material of fuel cell anode and cathode can diffuse to any one part of power cell anode-cathode respectively equably, owing on the anode and cathode flow field, there is not " dead band " part, make reaction product and non-reactant to get rid of in time, and can not be enriched in certain zone in flow field.Fuel cell pack provided by the invention in addition also has simple structure and is easy to flexibly realize, the volumetric power density height, adapt to wide, advantages such as low price, and just can satisfy different equipment requirements by changing its size and dimension.
Description of drawings
Fig. 1 is an individual fuel cells electrode structure schematic diagram;
Fig. 2 is the structural representation of disclosed fuel cell pack among the patent CN1374714A;
Fig. 3 is the structural representation of fuel cell pack of the present invention;
Fig. 4 is the schematic diagram of anode flow field board of the present invention;
Fig. 5 is the schematic diagram of cathode flow field plate of the present invention;
Fig. 6 is the schematic diagram of cathode flow field plate of the present invention;
Fig. 7 is the schematic diagram of cathode flow field plate of the present invention;
Fig. 8 is the structural representation of fuel cell pack of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is further illustrated.
As shown in Figure 3, fuel cell pack provided by the invention comprises first end plate 15, second end plate 16, the first electric current drainage plate 17, the second electric current drainage plate 18, a plurality of pole plate 19, a plurality of membrane electrode 20, seal washer 21, bolt 22 and nut 23, and described pole plate 19 comprises anode flow field board 19 ' and the cathode flow field plate 19 that fits tightly ".
Wherein, described first end plate 15, second end plate 16, the first electric current drainage plate 17, the second electric current drainage plate 18, anode flow field board 19 ', cathode flow field plate 19 " and the shape of membrane electrode 20 can be different shape; as circular, ellipse or polygon, be preferably circle, ellipse or rectangle.The center of these plates is formed with the centre bore 38 of the diameter of mutual correspondence greater than described bolt 22 diameters respectively, the shape of the shape of described centre bore 38 and bolt 22 adapts, can be different shape,, be preferably circle, hexagon or square as circle, ellipse or polygon.
Described first end plate 15 and second end plate 16 can adopt materials such as aluminium, stainless steel, titanium or engineering plastics to make, and first connector 28 and second connector 29 are arranged on described second end plate 16, wherein first connector 28 is the import of fuel, and second connector 29 is the outlet of fuel.
Described anode flow field board 19 ' and cathode flow field plate 19 " can adopt graphite or metal material; make as good materials of electric conductivity such as titanium, stainless steel, gold, silver or copper, and described anode flow field board 19 ' and cathode flow field plate 19 " on have with described second end plate 16 on first connector 28 and second connector, 29 corresponding first through hole 26 and second through holes 27.
Wherein, cathode flow field plate 19 " on first through hole 26 and second through hole 27 around be respectively arranged with seal washer 21, leak to the oxidation air exhaustion to prevent fuel.Cathode flow field plate 19 " the one side of fitting with anode flow field board 19 ' be smooth surface, and another side be formed with straight line or serpentine bend form from centre bore 38 to around the guiding gutter dispersed, spread the runner face as oxic gas.Wherein cathode flow field plate 19 " ratio of area of going up the bottom land area sum of all guiding gutters and whole cathode flow field plate between 1/3-4/5, cathode flow field plate 19 " go up the ratio of thickness of the degree of depth of guiding gutter and cathode flow field plate between 1/5-1/2.
Around the centre bore 38 on the anode flow field board 19 ' and the excircle of plate also be respectively arranged with seal washer 21, be used for fuel is completely cut off, directly react to negative electrode and oxic gas to prevent fuel diffusion.Anode flow field board 19 ' with cathode flow field plate 19 " one side of fitting is a smooth surface, and another side is formed with rounded or irregular snakelike run-track shaped guiding gutter, the diffusion runner face that acts as a fuel, as shown in Figure 4.
Seal washer 21 can adopt various elastomeric materials, for example, can be selected from permeability melten gel plastics, rubber, resin, polyurethane, polyester, polyimides, the foamed material one or more.
The described first electric current drainage plate 17 and the second electric current drainage plate 18 can adopt materials such as copper, stainless steel, titanium, silver, gold or graphite to make, and are used for projected current and to extraneous transmission of electric energy.Described membrane electrode 20 is made of cathode diffusion layer, anode diffusion layer, the Catalytic Layer and the proton exchange membrane that load on the diffusion layer, and the material of its composition, structure and each parts is conventionally known to one of skill in the art.And also have respectively on described second electric current drainage plate 18 and the membrane electrode 20 with described second end plate 16 on first connector 28 and second connector 29 and described anode flow field board 19 ' and cathode flow field plate 19 " on first through hole 26 and second through hole, 27 corresponding holes; these holes of interpenetrating can be different shapes; as circular, ellipse or polygon; be preferably circle, hexagon or square, they have formed first main channel 35 and second main channel 36 for delivery of fuel jointly.
Described bolt 22 is used for order and passes described first end plate 15, second end plate 16, the first electric current drainage plate 17, the second electric current drainage plate 18, anode flow field board 19 ', cathode flow field plate 19 " and membrane electrode 20 on centre bore 38, and utilize 23 pairs of fuel cell packs of nut to carry out fastening.On the described nut 23 perforate 30 is arranged, be used for providing for fuel cell pack the passage of oxidizing gas diffusion, the size of this perforate 30 and the structure of fuel cell pack adapt, and its size can guarantee that at least enough oxic gas pass in and out.The size of described bolt 22 and nut 23 adapts with the structure of corresponding fuel cell pack, and its thickness can guarantee to carry out fastening to battery pile at least.
According to concrete execution mode of the present invention, described first end plate 15, second end plate 16, the first electric current drainage plate 17, the second electric current drainage plate 18, anode flow field board 19 ', cathode flow field plate 19 " and membrane electrode 20 be circle.At this moment, cathode flow field plate 19 " the one side of fitting with anode flow field board 19 ' be smooth surface, and another side be formed with straight line or serpentine bend form from centre bore 38 to around the guiding gutter dispersed, as shown in Figure 5.Wherein, cathode flow field plate 19 " the bottom land area sum that goes up all guiding gutters is 1/3 with the ratio of the area of whole cathode flow field plate, cathode flow field plate 19 " degree of depth that goes up guiding gutter is 1/4 with the ratio of the thickness of cathode flow field plate.
According to concrete execution mode of the present invention, described first end plate 15, second end plate 16, the first electric current drainage plate 17, the second electric current drainage plate 18, anode flow field board 19 ', cathode flow field plate 19 " and membrane electrode 20 be rectangle.At this moment, cathode flow field plate 19 " the one side of fitting with anode flow field board 19 ' be smooth surface, and another side be formed with straight line or serpentine bend form from centre bore 38 to around the guiding gutter dispersed, as shown in Figure 6.Wherein, first through hole 26 and second through hole 27 are distributed on the diagonal of rectangular flow field plate, and cathode flow field plate 19 " the bottom land area sum that goes up all guiding gutters is 3/5 with the ratio of the area of whole cathode flow field plate, cathode flow field plate 19 " degree of depth that goes up guiding gutter is 1/2 with the ratio of the thickness of cathode flow field plate.
According to concrete execution mode of the present invention, described first end plate 15, second end plate 16, the first electric current drainage plate 17, the second electric current drainage plate 18, anode flow field board 19 ', cathode flow field plate 19 " and membrane electrode 20 be ellipse.At this moment, cathode flow field plate 19 " the one side of fitting with anode flow field board 19 ' be smooth surface, and another side be formed with straight line or serpentine bend form from centre bore 38 to around the guiding gutter dispersed, as shown in Figure 7.Wherein, first through hole 26 and second through hole 27 are distributed on the major axis of elliptic flow field plate, and cathode flow field plate 19 " the bottom land area sum that goes up all guiding gutters is 1/2 with the ratio of the area of whole cathode flow field plate, cathode flow field plate 19 " degree of depth that goes up guiding gutter is 1/3 with the ratio of the thickness of cathode flow field plate.
As oxidizing gas, can enter the inside of fuel cell by free convection as air or oxygen, and to cathode flow field plate 19 " the surface; be the cathode side diffusion of each monoreactant battery; the guiding gutter of therefrom dispersing around the mind-set with straight line or serpentine bend form through cathode side is diffused into each part of runner face again; with the surface of anode flow field board 19 ', i.e. the fuel generation electrochemical reaction of anode-side.Because described runner is a through hole, therefore can make oxic gas diffuse to arbitrary region, with the required fresh oxic gas of timely postcombustion cell reaction, and with the reaction product and unreacted reactant take the fuel cell runner out of, thereby runner water blockoff and nitrogen enrichment phenomenon can not take place.
And fuel is entered the inside of fuel cell through first main channel 35 by first connector 28, because the inlet and outlet piping of fuel is separated, therefore form the concentration gradient of fuel diffusion on the galvanic anode surface, the surface that helps fuel anode flow field plate 19 ', it is the anode-side diffusion of each monoreactant battery, circular or irregular snakelike run-track shaped guiding gutter is diffused into each part of runner face on anode-side again, oxidant generation electrochemical reaction with cathode side, reacted fuel is aggregated into second main channel 36, and second connector 29 from second end plate 16 flows out fuel cell packs at last.In this process,, therefore can not cause product CO owing on the flow field, there is not " dead band " part 2Enrichment on runner.
The assembling of fuel cell provided by the present invention can realize by following process: at first that nut 23 and bolt 22 is fixing, then with first end plate 15, the first electric current drainage plate 17, several anode flow field boards 19 ' and cathode flow field plates 19 ", several membrane electrodes 20, the second electric current drainage plate 18 and second end plate, 16 orders are connected on the bolt 22, wherein anode flow field board 19 ' and cathode flow field plate 19 " smooth surface fit mutually.In this process, must be noted that to guarantee several anode flow field boards 19 ' and cathode flow field plate 19 ", the through hole on several membrane electrodes 20 and the second electric current drainage plate 18 respectively with second end plate 16 on first connector 28 and the 29 corresponding and mutual perforations of second connector.Last tightening nuts 23 is finished assembling.
Fig. 8 is the structural representation of the fuel cell pack of another execution mode of the present invention.In this execution mode, oxidant does not adopt the form of oxic gas convection current, and uses blower fan 37 air feed.Blower fan 37 is installed in the outside of a nut 23, simultaneously, forms or do not form perforate 30 on another nut 23 relative with blower fan 37.The others of present embodiment are identical with the execution mode shown in Fig. 3, and therefore fuel cell pack provided by the invention can also comprise the blower fan 37 in the outside that is installed in nut 23.

Claims (8)

1. fuel cell pack, it is characterized in that, this fuel cell pack comprises first end plate (15), second end plate (16), the first electric current drainage plate (17), the second electric current drainage plate (18), a plurality of pole plate (19), a plurality of membrane electrode (20), seal washer (21), bolt (22) and nut (23), wherein, on described first end plate (15), second end plate (16), the first electric current drainage plate (17), the second electric current drainage plate (18), pole plate (19) and the membrane electrode (20) centre bore (38) is arranged respectively; First connector (28) and second connector (29) are arranged on described second end plate (16); Have on the described pole plate (19) and first connector (28) and corresponding first through hole of second connector (29) (26) and second through hole (27); Have respectively on described second electric current drainage plate (18) and the membrane electrode (20) with described second end plate (16) on first connector (28) and first through hole (26) on second connector (29) and the described pole plate (19) and the corresponding hole of second through hole (27); Perforate (30) is arranged on the described nut (23); Described pole plate (19) comprises the anode flow field board (19 ') that fits tightly and cathode flow field plate (19 "); and; be respectively arranged with seal washer (21) around first through hole (26) on the cathode flow field plate (19 ") and second through hole (27), the centre bore on the anode flow field board (19 ') (38) on every side and the excircle of plate also be respectively arranged with seal washer (21).
2. fuel cell pack according to claim 1, wherein, described first end plate (15), second end plate (16), the first electric current drainage plate (17), the second electric current drainage plate (18), anode flow field board (19 '), cathode flow field plate (19 ") and membrane electrode (20) are circular, rectangle or ellipse.
3. fuel cell pack according to claim 1 and 2, wherein, the one side of fitting with cathode flow field plate (19 ") of described anode flow field board (19 ') is a smooth surface, and another side is formed with rounded or irregular snakelike run-track shaped guiding gutter.
4. fuel cell pack according to claim 1 and 2, wherein, the one side of fitting with anode flow field board (19 ') of described cathode flow field plate (19 ") is a smooth surface, and another side be formed with straight line or serpentine bend form from centre bore (38) to around the guiding gutter dispersed.
5. fuel cell pack according to claim 4, wherein, described cathode flow field plate (19 ") is gone up the ratio of area of the bottom land area sum of all guiding gutters and whole cathode flow field plate between 1/3-4/5.
6. fuel cell pack according to claim 4, wherein, described cathode flow field plate (19 ") is gone up the ratio of thickness of the degree of depth of guiding gutter and cathode flow field plate between 1/5-1/2.
7. fuel cell pack according to claim 1, wherein, the diameter of the centre bore (38) on described first end plate (15), second end plate (16), the first electric current drainage plate (17), the second electric current drainage plate (18), anode flow field board (19 '), cathode flow field plate (19 ") and the membrane electrode (20) is greater than the diameter of bolt (22).
8. fuel cell pack according to claim 1, wherein, described fuel cell pack also comprises the blower fan (37) that is installed in nut (23) outside, another nut (23) relative with described blower fan (37) gone up and formed or do not form perforate (30).
CNB2005100907768A 2005-04-05 2005-08-16 Fuel cell stack Active CN100429820C (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
CNB2005100907768A CN100429820C (en) 2005-08-16 2005-08-16 Fuel cell stack
JP2008504605A JP5081808B2 (en) 2005-04-05 2006-03-29 Flow field plate and fuel cell stack using the flow field plate
US11/910,830 US20080305382A1 (en) 2005-04-05 2006-03-29 Flow-Field Plate and Fuel Cell Stack Using the Same
PCT/CN2006/000541 WO2006105715A1 (en) 2005-04-05 2006-03-29 Flow-field plate and fuel cell stack using the same
KR1020077025665A KR100889105B1 (en) 2005-04-05 2006-03-29 Flow-field plate and fuel cell stack using the same
JP2008504604A JP5017255B2 (en) 2005-04-05 2006-03-29 Fuel cell stack
AT06722192T ATE468622T1 (en) 2005-04-05 2006-03-29 FLOW FIELD PLATE AND FUEL CELL STACK WITH IT
PCT/CN2006/000540 WO2006105714A1 (en) 2005-04-05 2006-03-29 Flow-field plate and fuel cell stack using the same
DE602006014388T DE602006014388D1 (en) 2005-04-05 2006-03-29 FLOW FIELD PLATE AND FUEL CELL STACK WITH IT
DE602006009240T DE602006009240D1 (en) 2005-04-05 2006-03-29
EP06722193A EP1872428B1 (en) 2005-04-05 2006-03-29 Flow-field plate and fuel cell stack using the same
KR1020077024498A KR100887274B1 (en) 2005-04-05 2006-03-29 Flow-field plate and fuel cell stack using the same
US11/910,865 US7846608B2 (en) 2005-04-05 2006-03-29 Flow-field plate and fuel cell stack using the same
EP06722192A EP1875542B1 (en) 2005-04-05 2006-03-29 Flow-field plate and fuel cell stack using the same
AT06722193T ATE443350T1 (en) 2005-04-05 2006-03-29 FLOW FIELD PLATE AND FUEL CELL STACK WITH IT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100907768A CN100429820C (en) 2005-08-16 2005-08-16 Fuel cell stack

Publications (2)

Publication Number Publication Date
CN1917266A CN1917266A (en) 2007-02-21
CN100429820C true CN100429820C (en) 2008-10-29

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113471476A (en) * 2021-06-09 2021-10-01 电子科技大学 Fuel cell power generation module and application thereof
CN113451600A (en) * 2021-06-18 2021-09-28 深圳职业技术学院 Annular cathode open type air-cooled fuel cell with embedded air duct
CN115064721B (en) * 2022-06-08 2023-12-29 上海电气集团股份有限公司 Air-cooled fuel single cell assembly and air-cooled fuel cell stack structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08148178A (en) * 1994-11-25 1996-06-07 Ishikawajima Harima Heavy Ind Co Ltd Cylindrical fuel cell
CN1374714A (en) * 2001-03-09 2002-10-16 大同金属工业株式会社 Portable fuel cell stacking material
CN1564360A (en) * 2004-04-14 2005-01-12 清华大学 Self-breathing portable power supply
CN1622375A (en) * 2003-11-28 2005-06-01 上海河森电气有限公司 Low-pressure air breathing fuel cell pile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08148178A (en) * 1994-11-25 1996-06-07 Ishikawajima Harima Heavy Ind Co Ltd Cylindrical fuel cell
CN1374714A (en) * 2001-03-09 2002-10-16 大同金属工业株式会社 Portable fuel cell stacking material
CN1622375A (en) * 2003-11-28 2005-06-01 上海河森电气有限公司 Low-pressure air breathing fuel cell pile
CN1564360A (en) * 2004-04-14 2005-01-12 清华大学 Self-breathing portable power supply

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