CN202268448U - Fuel cell with integrated cathode and anode bipolar plate - Google Patents
Fuel cell with integrated cathode and anode bipolar plate Download PDFInfo
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- CN202268448U CN202268448U CN2011203267069U CN201120326706U CN202268448U CN 202268448 U CN202268448 U CN 202268448U CN 2011203267069 U CN2011203267069 U CN 2011203267069U CN 201120326706 U CN201120326706 U CN 201120326706U CN 202268448 U CN202268448 U CN 202268448U
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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 utility model discloses a fuel cell with an integrated cathode and anode bipolar plate, which comprises an alternately-arranged bipolar plate and a membrane electrode component; the bipolar plate comprises an electrochemical reaction part and an non-electrochemical reaction part; the non-electrochemical reaction part is an integrated frame, and the electrochemical reaction part is nested inside the non-electrochemical reaction part. The fuel cell with the integrated cathode and anode bipolar plate provided by the utility model is simpler in structure, which allows the manufacturing process of the fuel cell to be simpler, increases the production efficiency and reduces the manufacturing cost; the fuel cell bipolar plate provided by the utility model has integrated design of a cathode and an anode, which reduces the contact impedance of the fuel cell, reduces the internal consumption of output electric quantity, and increases the power generation efficiency to the utmost extent.
Description
Technical field
The utility model relates to new energy field, relates in particular to a kind of bipolar plates of fuel cell.
Background technology
Fuel cell is a kind of rising new electrical source of power; Be fuel generally with hydrogen, carbon, methyl alcohol, boron hydride, coal gas or natural gas; With hydrogen as negative pole; With airborne oxygen as positive pole. with the main distinction of general battery be the active material of general battery be placed in advance into, thereby battery capacity depends on the amount of the active material of storage; And the active material of fuel cell (fuel and oxidant) is in reaction, to import continuously, and therefore, this type battery is an energy conversion device in fact just.Advantages such as this type battery has the conversion efficiency height, capacity is big, specific energy is high, power bracket is wide, need not charge have vast potential for future development at aspects such as airship, submarine, military affairs, TV terminal, beacon and buoys.
Fuel cell of the prior art is mainly formed by the battery unit series combination more than two.Fig. 1 has described the structure and the position relation of each parts in the battery unit.As shown in Figure 1; Said each battery unit all comprises bipolar plates 110,120 and membrane electrode assembly 100; Said bipolar plates 110,120 comprises independent respectively positive plate 110 and the minus plate 120 that is provided with, and said membrane electrode assembly 100 is folded between said positive plate 110 and the said minus plate 120.Said positive plate 110 comprises anode electrochemical reacting part 117 and anode non-electrochemical reacting part 118; The fuel fluid passage that said anode electrochemical reacting part 117 is provided with groove shape structure near the one side of said membrane electrode assembly 100 is because Fig. 1 is a vertical view, and said fuel fluid passage is not shown.Said minus plate 120 comprises electrochemical cathode reacting part 127 and negative electrode non-electrochemical reacting part 128, and said electrochemical cathode reacting part 127 is provided with the oxidant fluid passage 129 of groove shape structure near the one side of said membrane electrode assembly 100; Said anode non-electrochemical reacting part 118 is provided with first through hole 111, second through hole 112 and third through-hole 113; That said negative electrode non-electrochemical reacting part 128 is provided with is not shown among fourth hole Fig. 1, fifth hole 125 and the 6th through hole 126; Said first through hole 111 and said fourth hole coaxial communication; Said second through hole 112 and said fifth hole 125 coaxial communication, said third through-hole 113 and said the 6th through hole 126 coaxial communication; Said fuel fluid passage is connected with said first through hole 111; Said oxidant fluid passage 129 is connected with said the 6th through hole 126; In addition; Be respectively equipped with among anode cooling passage 119 and negative electrode cooling passage 232 Fig. 1 not shown away from the one side of said membrane electrode assembly 100 at said anode electrochemical reacting part 117 and said electrochemical cathode reacting part 127; Said anode cooling passage 119 is connected with said second through hole 112, and said negative electrode cooling passage 232 is connected with said fifth hole 125..
In the prior art; Adopt bonding mode that positive plate and minus plate in adjacent two battery units are bonded together; Between said anode electrochemical reacting part and the electrochemical cathode reacting part, all there is seam between said anode non-electrochemical reacting part and the negative electrode non-electrochemical reacting part.Bipolar plate structure described in the above-mentioned prior art, because positive plate and minus plate independently are provided with, structure is comparatively complicated; Have the bigger internal resistance that contacts between positive plate and the adjacent cathode plate, cause generating efficiency lower; In addition, positive plate and minus plate need independent the manufacturing, assembling respectively, and processing cost is higher, and production efficiency is lower.
The utility model content
The purpose of the utility model provides a kind of fuel cell with integrated anode and cathode bipolar plates.
The utility model provides a kind of fuel cell with integrated anode and cathode bipolar plates, comprises bipolar plates and the membrane electrode assembly alternately arranged; Said bipolar plates comprises electrochemical reaction portion and non-electrochemical reacting part; The framework that said non-electrochemical reacting part is integrated, said electrochemical reaction portion is nested in the said non-electrochemical reacting part.
Said electrochemical reaction portion comprises anode electrochemical reacting part and electrochemical cathode reacting part.Said anode electrochemical reacting part and said electrochemical cathode reacting part all are bonded in the said non-electrochemical reacting part, and said anode electrochemical reacting part and electrochemical cathode reacting part closely are arranged in together.The integral structure that said electrochemical reaction portion can also process for electric conducting material.The fuel cell that the utility model provided with integrated anode and cathode bipolar plates, structure is simpler, makes the manufacture process of fuel cell more easy, has increased production efficiency and has reduced manufacturing cost; The fuel battery double plates that the utility model provided because the incorporate design of anode and cathode, has reduced the contact impedance of fuel cell, has reduced the internal consumption of output electric weight, greatly the raising of degree generating efficiency.
Description of drawings
Fig. 1 the utlity model 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, and Fig. 2 middle part is the expression that fractures, to omit its length.
Fig. 3 is the cross-sectional view of bipolar plates and membrane electrode assembly.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer; To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the utility model embodiment is carried out clear, intactly description; Obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
To shown in Figure 3, present embodiment provides a kind of fuel cell with integrated anode and cathode bipolar plates like Fig. 1, comprises bipolar plates and the membrane electrode assembly 200 alternately arranged; Said bipolar plates comprises electrochemical reaction portion and non-electrochemical reacting part 210; It is characterized in that: the framework that said non-electrochemical reacting part is integrated, said electrochemical reaction portion 210 is nested in the said non-electrochemical reacting part framework.Like this; The non-electrochemical reacting part 210 of a slice positive plate in adjacent two battery units in the 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, help simplified manufacturing technique; Two machine plates of this integrative-structure can reduce interstructural contact internal resistance simultaneously; Reduce the loss of cell power generation amount, thereby can improve generating efficiency, further save from causing this.
Said electrochemical reaction portion comprises anode electrochemical reacting part 2072 and electrochemical cathode reacting part 2071.Said anode electrochemical reacting part 2072 is provided with the fuel fluid passage 233 of groove shape structure away from the one side of said electrochemical cathode reacting part 2071; Said electrochemical cathode reacting part 2071 is provided with the oxidant fluid passage of groove shape structure away from the one side of said anode electrochemical reacting part 2072, be convenient to like this fuel fluid and oxidant fluid through and carry out electrochemical reaction.Figure is mainly used in the structure and the position relation of said electrochemical reaction portion of explanation and said non-electrochemical reacting part 210, and is clear more understandable in order to make accompanying drawing, not shown said fuel fluid passage 233 and oxidant fluid passage.
Said anode electrochemical reacting part 2072 is provided with the fuel fluid passage 231 of groove shape structure away from the one side of said electrochemical cathode reacting part 2071; Said electrochemical cathode reacting part 2071 is provided with the oxidant fluid passage 233 of groove shape structure away from the one side of said anode electrochemical reacting part 2072.Fig. 4 is mainly used in the structure and the position relation of said electrochemical reaction portion of explanation and said non-electrochemical reacting part 210, and is clear more understandable in order to make accompanying drawing, not shown said anode cooling passage 232 and negative electrode cooling passage 232.
Said anode electrochemical reacting part 2072 is bonded in said non-electrochemical reacting part 210 frameworks with said electrochemical cathode reacting part equal 2071, and said anode electrochemical reacting part 2072 closely links together with electrochemical cathode reacting part 2071 back-to-back.Like this, said anode cooling passage 232 is connected into cavernous structure with said negative electrode cooling passage 232, forms to be positioned at said poroid cooling passage 232 with integrated anode and cathode bipolar plates middle part.So just make this have integrated anode and cathode bipolar plates respectively on the two sides and the middle part have individual passage altogether; Be respectively applied for through fuel stream, oxidant fluid and cooling fluid, be convenient to passing through and reacting to each other of fuel and oxidant fluid, can further improve generating efficiency; Make fuel cell have the carrying out of the electrochemical reaction of higher water retention property and fuel cell; Help reducing the internal temperature of fuel cell, protection fuel cell, the useful life of increase fuel cell.
Said cooling channels 232 is located between anode electrochemical reacting part 2072 and the electrochemical cathode reacting part 2071; Said fluid passage 232 can all or part ofly be produced on the one side of electrochemical cathode reacting part near said anode electrochemical reacting part, and said fluid passage 232 also can all or part ofly be processed in the one side of anode electrochemical reacting part near said electrochemical cathode reacting part.When said fluid passage 232 was produced in the negative and positive polarization response portion, negative and positive two reacting parts that link together back-to-back made said anode cooling passage be connected into cavernous structure with said negative electrode cooling passage merging.
Said non-electrochemical reacting part is provided with the through hole 221 that is used to flow into and flow out fuel fluid, be used to flow into and flow out the through hole 223 of oxidant fluid and be used to flow into and flow out the through hole 222 of cooling fluid, is connected with said fuel fluid passage, oxidant fluid passage and the cooling passage that is produced on the negative and positive reacting part respectively.Because said non-electrochemical reacting part 210 is the structure of an integration; Above-mentioned through hole, one-shot forming get final product, and need not after opening a through hole on the non-electrochemical reacting part 210 respectively, to make up again, and processing technology is simpler; Can effectively reduce manufacturing cost, enhance productivity.
Embodiment two
Extremely shown in Figure 3 like Fig. 1; The utility model also provides said another embodiment with fuel cell of integrated anode and cathode bipolar plates; This fuel cell comprises bipolar plates and the membrane electrode assembly of alternately arranging 200; Said bipolar plates comprises electrochemical reaction portion and non-electrochemical reacting part 210; The structure of said non-electrochemical reacting part 210 is consistent with the non-electrochemical reacting part 210 described in the foregoing description one; But its electrochemical reaction portion is the integral structure that electric conducting material is processed, and anode electrochemical reacting part described in the foregoing description one 2072 and electrochemical cathode reacting part 2071 are united two into one, and has had the function of anode electrochemical reacting part 2072 described in the foregoing description one and electrochemical cathode reacting part 2071 simultaneously concurrently.Like this, just formed the bipolar plates that electrochemical reaction portion and non-electrochemical reacting part 210 all are structure as a whole.Like this, just on the basis of embodiment one, further make the internal structure of fuel cell tightr, assembling is more prone to, and manufacturing process is easier, and cost is lower.
Because the yet integrated structure of electrochemical reaction portion does not have seam between anode and the negative electrode, can further reduce the contact impedance of fuel battery inside, has further increased generating efficiency.
It is not shown that the two sides of said electrochemical reaction portion is respectively equipped with the oxidant fluid passage of fuel fluid passage 233 and groove shape structure of groove shape structure, be convenient to reacting gas through and carry out electrochemical reaction.
Said electrochemical reaction portion can adopt the processing technology of die sinking to produce the integral structure that the middle part is provided with poroid cooling passage 232, further is convenient to cooling fluid through said fuel cell, improves this fuel cell performance.
As aforementioned; The structure of the non-electrochemical reacting part 210 of the fuel cell of being introduced in the structure of said non-electrochemical reacting part 210 and the foregoing description one is consistent; Therefore; Can be on said non-electrochemical reacting part 210 once moulding establish three through holes, be connected with said fuel fluid passage 233, cooling passage 232 and oxidant fluid passage respectively, be used for flowing into fuel fluid, cooling fluid and oxidant fluid to this fuel cell.
Need to prove; Only the through hole that is used to flow into fuel fluid, inleting oxidant fluid and flow into cooling fluid is illustrated in this specification; The through hole that is used to flow out fuel fluid, oxidant fluid and cooling fluid accordingly and the above-mentioned through hole that is used to flow into fuel fluid, inleting oxidant fluid and flow into cooling fluid in like manner and corresponding are not done tired stating here.
What should explain at last is, above embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to previous embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (10)
1. the fuel cell with integrated anode and cathode bipolar plates comprises bipolar plates and the membrane electrode assembly alternately arranged; Said bipolar plates comprises electrochemical reaction portion and non-electrochemical reacting part; It is characterized in that: the framework that said non-electrochemical reacting part is integrated, said electrochemical reaction portion is nested in the said non-electrochemical reacting part framework.
2. the fuel cell with integrated anode and cathode bipolar plates as claimed in claim 1 is characterized in that: said electrochemical reaction portion comprises anode electrochemical reacting part and electrochemical cathode reacting part.
3. the fuel cell with integrated anode and cathode bipolar plates as claimed in claim 2; It is characterized in that: said anode electrochemical reacting part and said electrochemical cathode reacting part all are bonded in the said non-electrochemical reacting part framework, and said anode electrochemical reacting part and electrochemical cathode reacting part closely link together back-to-back.
4. the fuel cell with integrated anode and cathode bipolar plates as claimed in claim 3 is characterized in that: said anode electrochemical reacting part is provided with the fuel fluid passage of groove shape structure away from the one side of said electrochemical cathode reacting part; Said electrochemical cathode reacting part is provided with the oxidant fluid passage of groove shape structure away from the one side of said anode electrochemical reacting part.
5. the fuel cell with integrated anode and cathode bipolar plates as claimed in claim 4 is characterized in that: said cooling channels is located between anode electrochemical reacting part and the electrochemical cathode reacting part; Said fluid passage can all or part ofly be produced on the one side of electrochemical cathode reacting part near said anode electrochemical reacting part, and said fluid passage also can all or part ofly be processed in the one side of anode electrochemical reacting part near said electrochemical cathode reacting part.When said fluid passage was produced in the negative and positive polarization response portion, negative and positive two reacting parts that link together back-to-back made said anode cooling passage be connected into cavernous structure with said negative electrode cooling passage merging.
6. the fuel cell with integrated anode and cathode bipolar plates as claimed in claim 4; It is characterized in that: said non-electrochemical reacting part is provided with the through hole that is used to flow into and flow out fuel fluid, be used to flow into and flow out the through hole of oxidant fluid and be used to flow into and flow out the through hole of cooling fluid, is connected with said fuel fluid passage, oxidant fluid passage and the cooling passage that is produced on the negative and positive reacting part respectively.
7. the fuel cell with integrated anode and cathode bipolar plates as claimed in claim 1 is characterized in that: said electrochemical reaction portion is the integral structure that electric conducting material is processed.
8. the fuel cell with integrated anode and cathode bipolar plates as claimed in claim 7 is characterized in that: the two sides of said electrochemical reaction portion is respectively equipped with the fuel fluid passage of groove shape structure and the oxidant fluid passage of groove shape structure.
9. the fuel cell with integrated anode and cathode bipolar plates as claimed in claim 8 is characterized in that: the middle part of said electrochemical reaction portion is provided with poroid cooling passage.
10. the fuel cell with integrated anode and cathode bipolar plates as claimed in claim 9; It is characterized in that: said non-electrochemical reacting part is provided with three and flows into through hole and three outflow through holes, is connected with said fuel fluid passage, cooling passage and oxidant fluid passage successively respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203267069U CN202268448U (en) | 2011-09-01 | 2011-09-01 | Fuel cell with integrated cathode and anode bipolar plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203267069U CN202268448U (en) | 2011-09-01 | 2011-09-01 | Fuel cell with integrated cathode and anode bipolar plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202268448U true CN202268448U (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203267069U Expired - Fee Related CN202268448U (en) | 2011-09-01 | 2011-09-01 | Fuel cell with integrated cathode and anode bipolar plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202268448U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013029514A1 (en) * | 2011-09-01 | 2013-03-07 | 上海恒劲动力科技有限公司 | Fuel cell with integrated cathode-anode bipolar plate |
| CN106169597A (en) * | 2016-06-24 | 2016-11-30 | 中国科学院过程工程研究所 | A kind of Unit agent structure seabed small-power electric power system |
| CN110875483A (en) * | 2018-09-04 | 2020-03-10 | 大连融科储能装备有限公司 | Integrated electrode-bipolar plate structure and preparation method |
-
2011
- 2011-09-01 CN CN2011203267069U patent/CN202268448U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013029514A1 (en) * | 2011-09-01 | 2013-03-07 | 上海恒劲动力科技有限公司 | Fuel cell with integrated cathode-anode bipolar plate |
| CN102969512A (en) * | 2011-09-01 | 2013-03-13 | 上海恒劲动力科技有限公司 | Fuel cell with integrated negative-positive bipolar plates |
| CN102969512B (en) * | 2011-09-01 | 2015-10-28 | 上海恒劲动力科技有限公司 | There is the fuel cell of integrated anode and cathode bipolar plates |
| CN106169597A (en) * | 2016-06-24 | 2016-11-30 | 中国科学院过程工程研究所 | A kind of Unit agent structure seabed small-power electric power system |
| CN110875483A (en) * | 2018-09-04 | 2020-03-10 | 大连融科储能装备有限公司 | Integrated electrode-bipolar plate structure and preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI EVERPOWER POWER TECHNOLOGY (CANADA) CO., Free format text: FORMER OWNER: SHANGHAI EVERPOWER POWER TECHNOLOGY CO., LTD. Effective date: 20120918 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120918 Address after: Ben City, British Columbia, Canada Patentee after: Shanghai Heng Heng Power Technology (Canada) 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. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20150901 |
|
| EXPY | Termination of patent right or utility model |