CN102969512B - There is the fuel cell of integrated anode and cathode bipolar plates - Google Patents
There is the fuel cell of integrated anode and cathode bipolar plates Download PDFInfo
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- CN102969512B CN102969512B CN201110257362.5A CN201110257362A CN102969512B CN 102969512 B CN102969512 B CN 102969512B CN 201110257362 A CN201110257362 A CN 201110257362A CN 102969512 B CN102969512 B CN 102969512B
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- electrochemical
- reacting part
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- bipolar plates
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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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
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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
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a kind of fuel cell with integrated anode and cathode bipolar plates, comprise the bipolar plates and membrane electrode assembly that are alternately arranged; Described bipolar plates comprises electrochemical reaction portion and non-electrochemical reacting part; The framework that described non-electrochemical reacting part is structure as a whole, described electrochemical reaction portion is nested in described non-electrochemical reacting part.The fuel cell with integrated anode and cathode bipolar plates provided by the present invention, structure is more simple, makes the manufacture process of fuel cell more easy, adds production efficiency and reduce manufacturing cost; Fuel battery double plates provided by the present invention, due to the design of anode and cathode integration, decreases the contact impedance of fuel cell, reduces and exports the internal consumption of electricity, high degree improve generating efficiency.
Description
Technical field
The present invention relates to new energy field, particularly relate to a kind of bipolar plates of fuel cell.
Background technology
Fuel cell is a kind of rising new electrical source of power, general with hydrogen, carbon, methyl alcohol, boron hydride, coal gas or natural gas for fuel, with hydrogen as negative pole, with the oxygen in air as positive pole. with the main distinction of general battery be the active material of general battery be placed in advance into, thus battery capacity depends on the amount of the active material of storage; And the active material of fuel cell (fuel and oxidant) inputs continuously reacting while, therefore, a this kind of battery in fact just energy conversion device.This kind of battery has the advantages such as conversion efficiency is high, capacity is large, specific energy is high, power bracket is wide, need not charge, in airship, submarine, military affairs, TV terminal, beacon and buoy etc., have vast potential for future development.
Fuel cell of the prior art, is combined into primarily of the battery cells in series of more than two.Fig. 1 describes structure and the position relationship of each parts in a battery unit.As shown in Figure 1, described each battery unit comprises bipolar plates 110,120 and membrane electrode assembly 100, described bipolar plates 110,120 comprises the positive plate 110 and minus plate 120 that independently arrange, and described membrane electrode assembly 100 is folded between described positive plate 110 and described minus plate 120.Described positive plate 110 comprises anode electrochemical reacting part 117 and anode non-electrochemical reacting part 118, described anode electrochemical reacting part 117 is provided with channel-shaped structure fuel flow passage near the one side of described membrane electrode assembly 100 due to Fig. 1 be vertical view, described fuel flow passage is not shown.Described minus plate 120 comprises electrochemical cathode reacting part 127 and negative electrode non-electrochemical reacting part 128, and described electrochemical cathode reacting part 127 is provided with the oxidant fluid passage 129 of channel-shaped structure near the one side of described membrane electrode assembly 100; Described anode non-electrochemical reacting part 118 is provided with the first through hole 111, second through hole 112 and third through-hole 113, described negative electrode non-electrochemical reacting part 128 is provided with not shown in fourth hole Fig. 1, fifth hole 125 and the 6th through hole 126, described first through hole 111 and described fourth hole coaxial communication, described second through hole 112 and described fifth hole 125 coaxial communication, described third through-hole 113 and described 6th through hole 126 coaxial communication; Described fuel flow passage is connected with described first through hole 111; Described oxidant fluid passage 129 is connected with described 6th through hole 126; In addition, be respectively equipped with in anode cooling passage 119 and cooled cathode liquid passage 232 Fig. 1 not shown at described anode electrochemical reacting part 117 and described electrochemical cathode reacting part 127 away from the one side of described membrane electrode assembly 100, described anode cooling passage 119 is connected with described second through hole 112, and described cooled cathode liquid passage 232 is connected with described fifth hole 125.
In prior art, the mode of bonding is adopted the positive plate in adjacent two battery units and minus plate to be bonded together, between described anode electrochemical reacting part and electrochemical cathode reacting part, between described anode non-electrochemical reacting part and negative electrode non-electrochemical reacting part, all there is seam.Bipolar plate structure described in above-mentioned prior art, because positive plate and minus plate are independently arranged, structure is comparatively complicated; There is between positive plate and adjacent cathode plate larger contact internal resistance, cause generating efficiency lower; In addition, positive plate and minus plate need independent manufacture, and assemble respectively, processing cost is higher, and production efficiency is lower.
Summary of the invention
The object of this invention is to provide a kind of fuel cell with integrated anode and cathode bipolar plates.
The invention provides a kind of fuel cell with integrated anode and cathode bipolar plates, comprise the bipolar plates and membrane electrode assembly that are alternately arranged; Described bipolar plates comprises electrochemical reaction portion and non-electrochemical reacting part; The framework that described non-electrochemical reacting part is integrated, described electrochemical reaction portion is nested in described non-electrochemical reacting part.
Described electrochemical reaction portion comprises anode electrochemical reacting part and electrochemical cathode reacting part.Described anode electrochemical reacting part and described electrochemical cathode reacting part are all bonded in described non-electrochemical reacting part, and described anode electrochemical reacting part is together with electrochemical cathode reacting part close-packed arrays.The integral structure that described electrochemical reaction portion can also make for electric conducting material.The fuel cell with integrated anode and cathode bipolar plates provided by the present invention, structure is more simple, makes the manufacture process of fuel cell more easy, adds production efficiency and reduce manufacturing cost; Fuel battery double plates provided by the present invention, due to the design of anode and cathode integration, decreases the contact impedance of fuel cell, reduces and exports the internal consumption of electricity, high degree improve generating efficiency.
Accompanying drawing explanation
Fig. 1 the present invention has the fuel cell stereo structural representation of integrated anode and cathode bipolar plates;
Fig. 2 is the cutaway view of Fig. 1 along direction A and direction B, is the expression that fractures, to omit its length in the middle part of Fig. 2.
Fig. 3 is the cross-sectional view of bipolar plates and membrane electrode assembly.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
As shown in Figure 1 to Figure 3, the present embodiment provides a kind of fuel cell with integrated anode and cathode bipolar plates, comprises the bipolar plates and membrane electrode assembly 200 that are alternately arranged; Described bipolar plates comprises electrochemical reaction portion and non-electrochemical reacting part 210; It is characterized in that: the framework that described non-electrochemical reacting part is integrated, described electrochemical reaction portion 210 is nested in described non-electrochemical reacting part framework.Like this, the non-electrochemical reacting part 210 of a slice positive plate in two battery units adjacent in prior art and the non-electrochemical reacting part 210 of a slice minus plate are improved to a slice overall structure, not only make the internal structure of fuel cell tightr, be conducive to simplified manufacturing technique, two machine plates of this integrative-structure can reduce interstructural contact internal resistance simultaneously, reducing the loss of cell power generation amount, thus can generating efficiency be improved, saving further from causing this.
Described electrochemical reaction portion comprises anode electrochemical reacting part 2072 and electrochemical cathode reacting part 2071.Described anode electrochemical reacting part 2072 is provided with the fuel flow passage 233 of channel-shaped structure away from the one side of described electrochemical cathode reacting part 2071; Described electrochemical cathode reacting part 2071 is provided with the oxidant fluid passage of channel-shaped structure away from the one side of described anode electrochemical reacting part 2072, is convenient to fuel fluid like this and oxidant fluid passes through and carries out electrochemical reaction.Figure is mainly used in structure and position relationship that described electrochemical reaction portion and described non-electrochemical reacting part 210 are described, in order to make accompanying drawing more clear understandable, and not shown described fuel flow passage 233 and oxidant fluid passage.
Described anode electrochemical reacting part 2072 is provided with the fuel flow passage 231 of channel-shaped structure away from the one side of described electrochemical cathode reacting part 2071; Described electrochemical cathode reacting part 2071 is provided with the oxidant fluid passage 233 of channel-shaped structure away from the one side of described anode electrochemical reacting part 2072.
Described anode electrochemical reacting part 2072 and described electrochemical cathode reacting part equal 2071 are bonded in described non-electrochemical reacting part 210 framework, and described anode electrochemical reacting part 2072 and electrochemical cathode reacting part 2071 closely link together back-to-back.Like this, described anode cooling passage 232 is connected into cavernous structure with described cooled cathode liquid passage 232, has the poroid cooling passage 232 in the middle part of integrated anode and cathode bipolar plates described in formation is positioned at.So just make this have integrated anode and cathode bipolar plates and altogether there is individual passage on two sides and middle part respectively; be respectively used to by flow in fuel, oxidant fluid and cooling fluid; be convenient to fuel and oxidant fluid by and react to each other; can further improve generating efficiency; fuel cell is made to have the carrying out of the electrochemical reaction of higher water retention property and fuel cell; be conducive to the internal temperature reducing fuel cell, protection fuel cell, increases the useful life of fuel cell.
Described cooling channels 232 is located between anode electrochemical reacting part 2072 and electrochemical cathode reacting part 2071; Described fluid passage 232 all or part ofly can be produced on the one side of electrochemical cathode reacting part near described anode electrochemical reacting part, described fluid passage 232 also can all or part of processing in the one side of anode electrochemical reacting part near described electrochemical cathode reacting part.When described fluid passage 232 is produced in negative and positive polarization response portion, negative and positive two reacting part linked together back-to-back makes described anode cooling passage be connected into cavernous structure with described cooled cathode liquid passage merging.
Described non-electrochemical reacting part is provided with through hole 221 for flowing into and flow out fuel fluid, for flowing into and flowing out the through hole 223 of oxidant fluid and the through hole 222 for flowing into and flow out cooling fluid, is connected respectively with the described fuel flow passage be produced on negative and positive reacting part, oxidant fluid passage with cooling passage.Due to the structure that described non-electrochemical reacting part 210 is an integration, above-mentioned through hole, one-shot forming, combine without the need to open a through hole respectively on non-electrochemical reacting part 210 after, processing technology is simpler again, effectively can reduce manufacturing cost, enhance productivity.
Embodiment two
As shown in Figure 1 to Figure 3, there is described in present invention also offers another embodiment of the fuel cell of integrated anode and cathode bipolar plates, this fuel cell comprises the bipolar plates and membrane electrode assembly 200 that are alternately arranged, described bipolar plates comprises electrochemical reaction portion and non-electrochemical reacting part 210, the structure of described non-electrochemical reacting part 210 is consistent with the non-electrochemical reacting part 210 described in above-described embodiment one, but its electrochemical reaction portion is the integral structure that electric conducting material is made, anode electrochemical reacting part 2072 described in above-described embodiment one and electrochemical cathode reacting part 2071 are united two into one, had the function of the anode electrochemical reacting part 2072 described in above-described embodiment one and electrochemical cathode reacting part 2071 concurrently simultaneously.Like this, the bipolar plates that electrochemical reaction portion and non-electrochemical reacting part 210 are all structure as a whole just is defined.Like this, just on the basis of embodiment one, make the internal structure of fuel cell more tight further, assembling is more prone to, and manufacturing process is easier, and cost is lower.
Due to the structure that electrochemical reaction portion is also integrated, without seam between anode and negative electrode, the contact impedance of fuel battery inside can be reduce further, further increase generating efficiency.
The oxidant fluid passage that the two sides in described electrochemical reaction portion is respectively equipped with the fuel flow passage 233 of channel-shaped structure and channel-shaped structure is not shown, is convenient to reacting gas and passes through and carry out electrochemical reaction.
Described electrochemical reaction portion can adopt the processing technology of die sinking to produce middle part and be provided with the integral structure of poroid cooling passage 232, is convenient to cooling fluid further by described fuel cell, improves the performance of this fuel cell.
As aforementioned, the structure of described non-electrochemical reacting part 210 is consistent with the structure of the non-electrochemical reacting part 210 of the fuel cell introduced in above-described embodiment one, therefore, once shapingly on described non-electrochemical reacting part 210 can establish three through holes, be connected with oxidant fluid passage with described fuel flow passage 233, cooling passage 232 respectively, for flowing into fuel fluid, cooling fluid and oxidant fluid to this fuel cell.
It should be noted that, only the through hole for flowing into fuel fluid, inleting oxidant fluid and inflow cooling fluid is illustrated in this specification, for the through hole that flows out fuel fluid, oxidant fluid and cooling fluid and the above-mentioned through hole for flowing into fuel fluid, inleting oxidant fluid and flowing into cooling fluid in like manner and corresponding accordingly, do not do here to tire out and state.
Finally it should be noted that above embodiment only in order to technical scheme of the present invention to be described, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. there is a fuel cell for integrated anode and cathode bipolar plates, comprise the bipolar plates and membrane electrode assembly that are alternately arranged; Described bipolar plates comprises electrochemical reaction portion and non-electrochemical reacting part; It is characterized in that: the framework that described non-electrochemical reacting part is integrated, described electrochemical reaction portion is nested in described non-electrochemical reacting part framework; Described electrochemical reaction portion comprises anode electrochemical reacting part and electrochemical cathode reacting part, described anode electrochemical reacting part and described electrochemical cathode reacting part are all bonded in described non-electrochemical reacting part framework, and described anode electrochemical reacting part and electrochemical cathode reacting part closely link together back-to-back.
2. there is the fuel cell of integrated anode and cathode bipolar plates as claimed in claim 1, it is characterized in that: described anode electrochemical reacting part is provided with the fuel flow passage of channel-shaped structure away from the one side of described electrochemical cathode reacting part; Described electrochemical cathode reacting part is provided with the oxidant fluid passage of channel-shaped structure away from the one side of described anode electrochemical reacting part.
3. there is the fuel cell of integrated anode and cathode bipolar plates as claimed in claim 2, it is characterized in that: coolant fluid passage is located between anode electrochemical reacting part and electrochemical cathode reacting part; Described fluid passage all or part ofly can be produced on the one side of electrochemical cathode reacting part near described anode electrochemical reacting part, described fluid passage also can all or part of processing in the one side of anode electrochemical reacting part near described electrochemical cathode reacting part, when described fluid passage is produced in negative and positive polarization response portion, negative and positive two reacting part linked together back-to-back makes described anode cooling passage be connected into cavernous structure with described cooled cathode liquid passage merging.
4. there is the fuel cell of integrated anode and cathode bipolar plates as claimed in claim 3, it is characterized in that: described non-electrochemical reacting part is provided with through hole for flowing into and flow out fuel fluid, for flowing into and flowing out the through hole of oxidant fluid and the through hole for flowing into and flow out cooling fluid, is connected respectively with the described fuel flow passage be produced on negative and positive reacting part, oxidant fluid passage with coolant fluid passage.
5. there is the fuel cell of integrated anode and cathode bipolar plates as claimed in claim 1, it is characterized in that: described electrochemical reaction portion is the integral structure that electric conducting material is made.
6. there is the fuel cell of integrated anode and cathode bipolar plates as claimed in claim 5, it is characterized in that: the two sides in described electrochemical reaction portion is respectively equipped with the fuel flow passage of channel-shaped structure and the oxidant fluid passage of channel-shaped structure.
7. there is the fuel cell of integrated anode and cathode bipolar plates as claimed in claim 6, it is characterized in that: the middle part in described electrochemical reaction portion is provided with poroid coolant fluid passage.
8. there is the fuel cell of integrated anode and cathode bipolar plates as claimed in claim 7, it is characterized in that: described non-electrochemical reacting part is provided with three and flows into through hole and three outflow through holes, is connected successively respectively with described fuel flow passage, coolant fluid passage with oxidant fluid passage.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110257362.5A CN102969512B (en) | 2011-09-01 | 2011-09-01 | There is the fuel cell of integrated anode and cathode bipolar plates |
| PCT/CN2012/080615 WO2013029514A1 (en) | 2011-09-01 | 2012-08-27 | Fuel cell with integrated cathode-anode bipolar plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110257362.5A CN102969512B (en) | 2011-09-01 | 2011-09-01 | There is the fuel cell of integrated anode and cathode bipolar plates |
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| Publication Number | Publication Date |
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| CN102969512A CN102969512A (en) | 2013-03-13 |
| CN102969512B true CN102969512B (en) | 2015-10-28 |
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| CN201110257362.5A Active CN102969512B (en) | 2011-09-01 | 2011-09-01 | There is the fuel cell of integrated anode and cathode bipolar plates |
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| CN (1) | CN102969512B (en) |
| WO (1) | WO2013029514A1 (en) |
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| WO2022057551A1 (en) * | 2020-09-21 | 2022-03-24 | 中国科学院大连化学物理研究所 | Pem electrolytic cell conductive partition plate having gas-liquid distribution flow field structure |
| CN112366333B (en) * | 2020-09-21 | 2022-03-25 | 中国科学院大连化学物理研究所 | 3D printing processing method of conductive partition plate with gas-liquid distribution flow field |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101447583A (en) * | 2008-10-31 | 2009-06-03 | 清华大学 | Fuel battery integrated unit module and fuel battery stack thereof |
| CN101867053A (en) * | 2010-06-25 | 2010-10-20 | 清华大学 | Fuel cell stack for jointly applying intraplate counter-flow flow field and interpolate counter-flow flow field |
| CN101937997A (en) * | 2010-09-21 | 2011-01-05 | 武汉理工大学 | Metallic bipolar plate of proton exchange membrane fuel cell and single cell and electric stack formed by same |
| CN202268448U (en) * | 2011-09-01 | 2012-06-06 | 上海恒劲动力科技有限公司 | Fuel cell with integrated cathode and anode bipolar plate |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1416184A (en) * | 2001-11-01 | 2003-05-07 | 哈尔滨工业大学 | Metal compound bipolar plate of fuel cell with proton exchange film |
| JP4723196B2 (en) * | 2004-03-16 | 2011-07-13 | 本田技研工業株式会社 | Fuel cell |
| CN101752587A (en) * | 2008-12-04 | 2010-06-23 | 上海空间电源研究所 | Preparation method for integrated fuel battery of metal bipolar plate and sealing piece |
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2011
- 2011-09-01 CN CN201110257362.5A patent/CN102969512B/en active Active
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- 2012-08-27 WO PCT/CN2012/080615 patent/WO2013029514A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101447583A (en) * | 2008-10-31 | 2009-06-03 | 清华大学 | Fuel battery integrated unit module and fuel battery stack thereof |
| CN101867053A (en) * | 2010-06-25 | 2010-10-20 | 清华大学 | Fuel cell stack for jointly applying intraplate counter-flow flow field and interpolate counter-flow flow field |
| CN101937997A (en) * | 2010-09-21 | 2011-01-05 | 武汉理工大学 | Metallic bipolar plate of proton exchange membrane fuel cell and single cell and electric stack formed by same |
| CN202268448U (en) * | 2011-09-01 | 2012-06-06 | 上海恒劲动力科技有限公司 | Fuel cell with integrated cathode and anode bipolar plate |
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| Publication number | Publication date |
|---|---|
| WO2013029514A1 (en) | 2013-03-07 |
| CN102969512A (en) | 2013-03-13 |
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Effective date of registration: 20201126 Address after: Room 103, no.1331 zhuanxing East Road, Minhang District, Shanghai, 201108 Patentee after: Shunfeng Hengjin hydrogen energy development (Shanghai) Co., Ltd Address before: 201203, building 1, building 1388, Zhang Dong Road, Zhangjiang hi tech park, Shanghai, Pudong New Area Patentee before: Shanghai Everpower Technologies Ltd. |