CN103915631A - Air-cooled integrated bipolar plate for fuel cells - Google Patents
Air-cooled integrated bipolar plate for fuel cells Download PDFInfo
- Publication number
- CN103915631A CN103915631A CN201210592538.7A CN201210592538A CN103915631A CN 103915631 A CN103915631 A CN 103915631A CN 201210592538 A CN201210592538 A CN 201210592538A CN 103915631 A CN103915631 A CN 103915631A
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- fin
- air
- bipolar plates
- fuel cell
- plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
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- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to an air-cooled integrated bipolar plate for fuel cells. The air-cooled integrated bipolar plate includes a cathode plate and an anode plate, at least one layer of radiating fin is arranged between the cathode plate and the anode plate, and the radiating fin is provided with a fluid channel. Compared with the prior art, the air-cooled integrated bipolar plate for fuel cells provided by the invention has the advantages of good radiating effect, high reliability, convenient installation, and arbitrary combination of radiating fin, etc.
Description
Technical field
The invention belongs to fuel cell technology field, especially relate to air-cooled integrated bipolar plates for a kind of fuel cell.
Background technology
Fuel cell is a kind of device that the chemical energy of hydrogen and oxygen is directly changed into electric energy by electrode reaction.Fuel cell is made up of multiple battery units conventionally, and each battery unit comprises two electrodes (anode and negative electrode), and these two electrodes are separated by electrolyte element, and is one another in series and assembles, and forms fuel cell pack.By supplying with suitable reactant to each electrode, give electrode feed fuels and another supplies with oxidant, realize electrochemical reaction, thereby between electrode, form potential difference, and therefore produce electric energy.
In order to give each electrode supply response thing, use the specific interface element that is commonly referred to " bipolar plates " and is arranged on the both sides of each single battery.The form of the discrete component that the normally contiguous male or female supporter of these bipolar plates is placed.Bipolar plates is the critical elements of fuel cell unit.Fuel cell piles up in running, bipolar plates is carried out following function to maintain optimum Working and the useful life of fuel cell pack: (1) battery conductive body, pole plate both sides form respectively negative electrode anode, and battery unit connects to form fuel cell pack one by one; (2) provide reaction gas (mass transfer) by runner to electrode; (3) coordinate water and hot management, prevent that coolant and reacting gas from leaking outside; (4) provide structural strength support to membrane electrode assembly (MEA).
Bipolar plates not only needs to provide the runner of reactant, generates water and heat after also needing to discharge reaction, avoids accumulating and causing can not working and the shortening in life-span of fuel cell because of heat.For this reason, general design is guiding gutter to be set as coolant runner at the minus plate back side, takes away by coolant runner high speed air-flow the heat that reaction produces.But this coolant flow channel is subject to the restriction of baffler size.Especially to Wind-cooling type fuel cell, as CN202308177U, this patent, by be provided with many cooling air runners on minus plate and positive plate, is accelerated pile radiating rate.The shortcoming of such technology is, because cooling duct is directly arranged on yin, yang pole plate plate, once the size of plate is determined, just can not adjust area of dissipation according to the size of battery, usually, because area of dissipation is limited, radiating effect is poor, the heat that causes fuel cell to produce can not all dissipate, thereby affect the performance of fuel cell, or increase the air quantity of cooling fan and reach the object of heat radiation, but increased again so extra power consumption.In addition, bipolar plate material costliness, if directly establish coolant flow channel at the bipolar plates back side, has increased manufacture difficulty, causes bipolar plates plate body thickening simultaneously, further increases material cost.
Another kind of design is that oxidant is directly served as to cooling agent, and therefore the oxidant flow channel in bipolar plates serves as coolant flow passages simultaneously.As CN1996647A, this patent is open groove by the Oxidizer distribution pipe design of cathode flow field plate.The shortcoming of such technology is, cooling required flow and the required flow of oxidant are also inconsistent, and directly adopts open runner for oxidant, and high to api request, suitable environment is few.
Summary of the invention
Object of the present invention is exactly that a kind of good heat dissipation effect, air-cooled integrated bipolar plates for fuel cell that reliability is high are provided in order to overcome the defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions: air-cooled integrated bipolar plates for a kind of fuel cell, comprise minus plate and positive plate, minus plate and positive plate are provided with fuel turnover fluid bore and oxidant turnover fluid bore, it is characterized in that, between described minus plate and positive plate, be provided with at least one deck fin, this fin is provided with fluid passage, and the import and export of this fluid passage are exposed to and in air, are open-circuit condition, dispels the heat to bipolar plates in the cooling-air fluid passage of flowing through.
Described fin area of dissipation as required arranges multilayer, and each layer of fin superposes up and down.
Described fin is provided with 1-10 layer, and cooling fluid flows into from each layer of fin one end respectively, and the other end flows out.
The material of described fin is metal material.
On described fin, fluid passage is made up of single multiple parallel connectivity slot, or double multiple parallel groove compositions opposing upper and lower, or the double multiple parallel grooves compositions that interlock up and down.
Described connectivity slot or the cross sectional shape of groove are rectangle, trapezoidal, semicircle, circular, pentalpha or polygon.
Between described fin and positive plate and minus plate, be injected into a whole.
Between described fin and fin, bonding in aggregates between fin and positive plate and minus plate.
On described fin, offering oxidant import and export and fuel imports and exports.
Compared with prior art, the present invention has the following advantages:
1. the fin of the present invention multilayer that can superpose up and down as required, to meet different radiating requirements, thereby is not subject to the restriction of bipolar plates area, can effectively control the temperature of fuel cell, thereby improve performance and the life-span of fuel cell.
2. fin has independent property, separates making with bipolar plates, has reduced the high and long processing time of technology difficulty that traditional double pole plate back side punching press coolant flow channel faces.
3. fin shape flexible design, fluid passage can be formed by heating panel punching press the through hole of series connection, or punches on heating panel, and the size and shape in hole can be adjusted arbitrarily, flexible operation.
4. the material that adopts the good heat dissipation such as aluminium alloy, can effectively improve heat-sinking capability.
5. bipolar plates can be by injection moulding or the bonding entirety of making, i.e. integrated setting improves the reliability that pile is installed greatly.
6. the present invention is open wind-cooling heat dissipating design, and the bipolar plate structure in scene 2 four holes is entered in employing two, has greatly improved the sealing property of pile, has omitted required pipeline structure and the control system of cooling fluid simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first fin;
Fig. 2 is the structural representation of the second bipolar plates;
Fig. 3 is the structural representation of the third fin;
Fig. 4 is the structural representation of the first bipolar plates;
Fig. 5 is the structural representation of the second bipolar plates;
Fig. 6 is the structural representation of the third bipolar plates;
Fig. 7 is the structural representation of fuel cell pack;
Fig. 8 is fuel-cell single-cell group structural representation;
Fig. 9 is the schematic diagram of fin and fluid passage.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 4, a kind of air-cooled integrated bipolar plates for fuel cell, comprise minus plate 2 and positive plate 7, fuel turnover fluid bore and oxidant turnover fluid bore are only set on minus plate and positive plate, do not establish cooling fluid manhole appendix, between described minus plate 2 and positive plate 7, be provided with one deck fin 3, this fin 3 is provided with fluid passage 5.Fluid passage 5 is stamped to form by aluminium alloy plate, and the cross section being oppositely arranged in the punching press of aluminium alloy plate both sides is trapezoidal parallel groove.As shown in Figure 2.Minus plate 2 is provided with fuel fluid passage 4, and positive plate 7 is provided with oxidant fluid passage 8.
Between minus plate 2, fin 3 and positive plate 7 by being injected into a whole, form a bipolar plates, these bipolar plates two ends are provided with that fuel passes in and out total runner and oxidant passes in and out total runner, fuel enters total runner 1 and oxidant enters total runner 6 as shown in Figure 4, between the minus plate of neighbouring bipolar plates and positive plate, sandwiched membrane electrode forms monocell, many group monocells formation fuel cell pack that superposes up and down, as shown in Figure 9.The import and export of fluid passage 5 are exposed in air, be open circuit design, form multiple cooling fluid access ways that are positioned at the parallel connection of bipolar plates side, airborne wind band flows through from fluid passage just can realize the heat radiation to bipolar plates, do not need separately to establish cooling fluid system, simplify electric pile structure, and on minus plate and positive plate, do not needed to arrange cooling fluid manhole appendix.Reduce cooling fluid manhole appendix and can reduce bipolar plates manufacture difficulty, accelerate operation, reduced the required sealing device of cooling fluid manhole appendix simultaneously, improved the sealing property of pile.
Embodiment 2
As shown in Figure 5, air-cooled integrated bipolar plates for a kind of fuel cell, comprises minus plate 2 and positive plate 7, is provided with two-layer fin 3 between described minus plate 2 and positive plate 7, and two-layer fin 3 is provided with fluid passage 5.Fluid passage 5 is stamped to form by aluminium alloy plate, and the cross section being oppositely arranged up and down in the punching press of aluminium alloy plate both sides is trapezoidal parallel groove.As shown in Figure 2.Minus plate 2 is provided with fuel fluid passage 4, and positive plate 7 is provided with oxidant fluid passage 8.
Between minus plate 2, two-layer fin 3 and positive plate 7 by being injected into a whole, form a bipolar plates, these bipolar plates two ends are provided with that fuel passes in and out total runner and oxidant passes in and out total runner, fuel enters total runner 1 and oxidant enters total runner 6 as shown in Figure 5, between the minus plate of neighbouring bipolar plates and positive plate, sandwiched membrane electrode forms monocell, as shown in Figure 8, organize the monocell formation fuel cell pack that superposes up and down more.
Fuel and oxygen pass in and out total runner and oxidant from the fuel at pile two ends respectively and pass in and out total runner and enter fuel fluid passage 4 corresponding to each bipolar plates and oxidant fluid passage 8, thereby on membrane electrode, react, the fin that the heat that reaction produces is entered in the middle of bipolar plates by airborne wind dispels the heat.
Embodiment 3
As shown in Figure 6, air-cooled integrated bipolar plates for a kind of fuel cell, comprises minus plate and positive plate, is provided with three layers of fin between described minus plate and positive plate: fin a3-1, and fin b3-2, fin c3-2, two-layer fin is provided with fluid passage.Fluid passage is stamped to form by aluminium alloy plate, and the cross section being oppositely arranged up and down in the punching press of aluminium alloy plate both sides is trapezoidal parallel groove, fin a3-1, and fin b3-2, fin c3-2 is arranged between minus plate and positive plate after superposeing up and down.
Minus plate, fin a3-1, fin b3-2, bonding in aggregates by adhesive between fin c3-2 and positive plate, form a bipolar plates, between the minus plate of neighbouring bipolar plates and positive plate, sandwiched membrane electrode forms monocell, organizes the monocell formation fuel cell pack that superposes up and down more.
Embodiment 4
As shown in Figure 1, fin 3 is provided with fluid passage.Fluid passage is stamped to form by aluminium alloy plate, and the cross section being crisscross arranged in the punching press of aluminium alloy plate both sides is trapezoidal parallel groove.All the other are with embodiment 1.
Embodiment 5
As shown in Figure 3,10 layers of the fin of stack are set between minus plate and positive plate up and down, identical star-like fluid passage is set on each layer of fin, all the other are with embodiment 3.
Embodiment 6
Referring to Fig. 1-8,5 layers of the fin of stack are set between minus plate and positive plate up and down, on each layer of fin, difform fluid passage is set, be that the cross sectional shape of the parallel groove offered on each layer of fin comprises rectangle, trapezoidal, semicircle, triangle, pentalpha and polygon, all the other are with embodiment 1.
Embodiment 7
The single fluid passage of offering on described fin, the connectivity slot that is rectangle by many parallel cross sections forms, and all the other are with embodiment 1.
Claims (8)
1. an air-cooled integrated bipolar plates for fuel cell, comprise minus plate and positive plate, minus plate and positive plate are provided with fuel turnover fluid bore and oxidant turnover fluid bore, it is characterized in that, between described minus plate and positive plate, be provided with at least one deck fin, this fin is provided with fluid passage, and the import and export of this fluid passage are exposed to and in air, are open-circuit condition, dispels the heat to bipolar plates in the cooling-air fluid passage of flowing through.
2. air-cooled integrated bipolar plates for a kind of fuel cell according to claim 1, is characterized in that, described fin area of dissipation as required arranges multilayer, and each layer of fin superposes up and down.
3. air-cooled integrated bipolar plates for a kind of fuel cell according to claim 2, is characterized in that, described fin is provided with 1-10 layer, and cooling fluid flows into from each layer of fin one end respectively, and the other end flows out.
4. air-cooled integrated bipolar plates for a kind of fuel cell according to claim 1, is characterized in that, the material of described fin is metal material.
5. air-cooled integrated bipolar plates for a kind of fuel cell according to claim 1, it is characterized in that, on described fin, fluid passage is made up of single multiple parallel connectivity slot, or double multiple parallel groove compositions opposing upper and lower, or the double multiple parallel grooves compositions that interlock up and down.
6. air-cooled integrated bipolar plates for a kind of fuel cell according to claim 6, is characterized in that, described connectivity slot or the cross sectional shape of groove are rectangle, trapezoidal, semicircle, circular, pentalpha or polygon.
7. air-cooled integrated bipolar plates for a kind of fuel cell according to claim 1, is characterized in that, between described fin and positive plate and minus plate, is injected into a whole.
8. air-cooled integrated bipolar plates for a kind of fuel cell according to claim 8, is characterized in that, between described fin and fin, bonding in aggregates between fin and positive plate and minus plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592538.7A CN103915631B (en) | 2012-12-31 | 2012-12-31 | A kind of air-cooled integrated bipolar plates of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592538.7A CN103915631B (en) | 2012-12-31 | 2012-12-31 | A kind of air-cooled integrated bipolar plates of fuel cell |
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| Publication Number | Publication Date |
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| CN103915631A true CN103915631A (en) | 2014-07-09 |
| CN103915631B CN103915631B (en) | 2018-04-24 |
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| CN201210592538.7A Active CN103915631B (en) | 2012-12-31 | 2012-12-31 | A kind of air-cooled integrated bipolar plates of fuel cell |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436504A (en) * | 2016-01-12 | 2016-03-30 | 中国电子科技集团公司第二十九研究所 | Thin-wall sealing liquid cooling channel based on metal quick forming technology |
| CN106910960A (en) * | 2015-12-18 | 2017-06-30 | 中国科学院大连化学物理研究所 | A kind of aviation fuel cell system radiator and aviation fuel cell system |
| CN108134110A (en) * | 2017-12-28 | 2018-06-08 | 东莞北京航空航天大学研究院 | Fuel battery double plates and its fuel cell and air cooling system |
| CN110121250A (en) * | 2018-02-07 | 2019-08-13 | 上海擎感智能科技有限公司 | Radiator structure and navigation host box |
| CN110137526A (en) * | 2018-02-02 | 2019-08-16 | 武汉众宇动力系统科技有限公司 | Fuel cell pile and fuel cell and its cathode plate |
| CN110571450A (en) * | 2019-08-14 | 2019-12-13 | 浙江高成绿能科技有限公司 | Air-cooled fuel cell stack with strong heat dissipation effect |
| CN113471476A (en) * | 2021-06-09 | 2021-10-01 | 电子科技大学 | Fuel cell power generation module and application thereof |
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| US20020068212A1 (en) * | 2000-11-27 | 2002-06-06 | Paul Osenar | Electrochemical polymer electrolyte membrane cell stacks and manufacturing methods thereof |
| CN1707835A (en) * | 2004-05-25 | 2005-12-14 | 三星Sdi株式会社 | Stack having improved cooling structure and fuel cell system having the same |
| CN201017943Y (en) * | 2006-10-24 | 2008-02-06 | 上海清能燃料电池技术有限公司 | Heat radiation design of minitype fuel cell |
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2012
- 2012-12-31 CN CN201210592538.7A patent/CN103915631B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020068212A1 (en) * | 2000-11-27 | 2002-06-06 | Paul Osenar | Electrochemical polymer electrolyte membrane cell stacks and manufacturing methods thereof |
| CN1707835A (en) * | 2004-05-25 | 2005-12-14 | 三星Sdi株式会社 | Stack having improved cooling structure and fuel cell system having the same |
| CN201017943Y (en) * | 2006-10-24 | 2008-02-06 | 上海清能燃料电池技术有限公司 | Heat radiation design of minitype fuel cell |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910960A (en) * | 2015-12-18 | 2017-06-30 | 中国科学院大连化学物理研究所 | A kind of aviation fuel cell system radiator and aviation fuel cell system |
| CN106910960B (en) * | 2015-12-18 | 2019-02-19 | 中国科学院大连化学物理研究所 | A kind of aviation fuel cell system radiator and aviation fuel cell system |
| CN105436504A (en) * | 2016-01-12 | 2016-03-30 | 中国电子科技集团公司第二十九研究所 | Thin-wall sealing liquid cooling channel based on metal quick forming technology |
| CN108134110A (en) * | 2017-12-28 | 2018-06-08 | 东莞北京航空航天大学研究院 | Fuel battery double plates and its fuel cell and air cooling system |
| CN110137526A (en) * | 2018-02-02 | 2019-08-16 | 武汉众宇动力系统科技有限公司 | Fuel cell pile and fuel cell and its cathode plate |
| CN110137526B (en) * | 2018-02-02 | 2024-03-01 | 武汉众宇动力系统科技有限公司 | Fuel cell stack, fuel cell unit and cathode plate thereof |
| CN110121250A (en) * | 2018-02-07 | 2019-08-13 | 上海擎感智能科技有限公司 | Radiator structure and navigation host box |
| CN110121250B (en) * | 2018-02-07 | 2023-09-26 | 上海擎感智能科技有限公司 | Heat radiation structure and navigation host box |
| CN110571450A (en) * | 2019-08-14 | 2019-12-13 | 浙江高成绿能科技有限公司 | Air-cooled fuel cell stack with strong heat dissipation effect |
| CN113471476A (en) * | 2021-06-09 | 2021-10-01 | 电子科技大学 | Fuel cell power generation module and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103915631B (en) | 2018-04-24 |
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Effective date of registration: 20201223 Address after: 266706 Tonghe Street Office, Pingdu City, Qingdao City, Shandong Province, north of the middle end of Tongda Road Patentee after: Qingdao Hanhe hydrogen energy equipment Technology Co.,Ltd. Address before: Building 1, No. 1388, Zhangdong Road, Pudong New Area, Shanghai, 201203 Patentee before: Shanghai Everpower Technologies Ltd. |