CN112687905A - Fuel cell anode collector plate and fuel cell stack - Google Patents
Fuel cell anode collector plate and fuel cell stack Download PDFInfo
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- CN112687905A CN112687905A CN202011569351.6A CN202011569351A CN112687905A CN 112687905 A CN112687905 A CN 112687905A CN 202011569351 A CN202011569351 A CN 202011569351A CN 112687905 A CN112687905 A CN 112687905A
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- fuel cell
- corrosion
- anode current
- metal plate
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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
Abstract
The invention discloses a fuel cell anode current collector and a fuel cell stack, wherein the fuel cell anode current collector comprises a corrosion-resistant plate which is in contact with reaction gas and cooling liquid and a metal plate for collecting current, and the corrosion-resistant plate and the metal plate are stacked to form a composite plate. Because the fuel cell anode current collecting plate is a composite plate formed by overlapping a corrosion-resistant plate in contact with reaction gas and cooling liquid and a metal plate for collecting current, the metal plate forms an active area, the corrosion-resistant plates on two sides form an inactive area, when the pile works, the corrosion-resistant plate in contact with the reaction gas and the cooling liquid can avoid the occurrence of corrosion phenomenon, the metal plate not in contact with the reaction gas and the cooling liquid can play a role in collecting current, and the conductivity of the metal plate is improved. The anode collector plate of the fuel cell has the advantages of simple structure, good conductivity, strong corrosion resistance and low cost, and can improve the corrosion resistance of the collector plate while improving the performance of the cell.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a fuel cell anode collector plate and a fuel cell stack.
Background
Pem fuel cell stacks are typically composed of tens to hundreds of individual cells connected in series, with the current typically ranging from a few amperes to hundreds of amperes when the cells are operating. The anode current collector is a flat plate structure, is an essential component in a proton exchange membrane fuel cell stack, is usually arranged between a reactor core and a floating end plate of the stack, and plays a role in collecting current.
The traditional anode current collecting plate is processed by a whole metal plate, because the working environment of the galvanic pile is acidic, the cooling liquid is slightly acidic and conductive, when the anode current collecting plate is contacted with the acidic cooling liquid, hydrogen and air, the anode current collecting plate is extremely easy to corrode, and ions or elements after corrosion are mixed in the cooling liquid, so that the electrode can be polluted, and the problem of single low can be caused.
Therefore, the technical problem to be solved by the technical staff in the art is how to provide a fuel cell anode current collecting plate with simple structure, good conductivity, strong corrosion resistance and low cost, and improve the corrosion resistance of the current collecting plate while improving the cell performance.
Disclosure of Invention
In view of the above, an object of the present invention is to provide an anode current collector for a fuel cell, which has a simple structure, good conductivity, strong corrosion resistance and low cost, and can improve the corrosion resistance of the current collector while improving the performance of the fuel cell.
It is yet another object of the present invention to provide a fuel cell stack.
In order to achieve the purpose, the invention provides the following technical scheme:
a fuel cell anode current collector plate includes a corrosion-resistant plate in contact with a reaction gas and a coolant and a metal plate for collecting current, and the corrosion-resistant plate and the metal plate are stacked to form a composite plate.
Preferably, the corrosion-resistant plate and the metal plate are assembled.
Preferably, the corrosion-resistant plate and the metal plate are formed by injection molding.
Preferably, the surface of the metal plate is subjected to roughening treatment.
Preferably, the corrosion-resistant plate is made of plastic.
Preferably, the metal plate is a copper plate, an aluminum alloy plate, a stainless steel plate or a titanium plate.
Preferably, the surface of the metal plate is further provided with a plating layer, and the plating layer is a silver plating layer, a gold plating layer or a PVD gold plating layer.
A fuel cell stack comprising a fuel cell anode current collector plate, said fuel cell anode current collector plate being as defined in any one of the preceding claims.
According to the technical scheme, the fuel cell anode current collecting plate comprises a corrosion-resistant plate which is in contact with reaction gas and cooling liquid and a metal plate for collecting current, and the corrosion-resistant plate and the metal plate are stacked to form a composite plate. Because the fuel cell anode current collecting plate is a composite plate formed by overlapping a corrosion-resistant plate in contact with reaction gas and cooling liquid and a metal plate for collecting current, the metal plate forms an active area, the corrosion-resistant plates on two sides form an inactive area, when the pile works, the corrosion-resistant plate in contact with the reaction gas and the cooling liquid can avoid the occurrence of corrosion phenomenon, the metal plate not in contact with the reaction gas and the cooling liquid can play a role in collecting current, and the conductivity of the metal plate is improved. The anode collector plate of the fuel cell has the advantages of simple structure, good conductivity, strong corrosion resistance and low cost, and can improve the corrosion resistance of the collector plate while improving the performance of the cell.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating an overall structure of an anode current collecting plate of a fuel cell according to an embodiment of the present invention;
fig. 2 is a schematic sectional view along a-a of fig. 1.
Wherein, each part name is as follows:
1-corrosion resistant plate, 2-metal plate.
Detailed Description
In view of the above, the core of the present invention is to provide an anode current collector for a fuel cell, which has a simple structure, good conductivity, strong corrosion resistance and low cost, and can improve the corrosion resistance of the current collector while improving the performance of the fuel cell.
The invention also provides a fuel cell stack.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 2, an anode current collecting plate for a fuel cell according to an embodiment of the present invention includes a corrosion-resistant plate 1 contacting a reaction gas and a coolant, and a metal plate 2 for collecting current, and the corrosion-resistant plate 1 and the metal plate 2 are stacked to form a composite plate.
Because the fuel cell anode current collecting plate is a composite plate formed by superposing the corrosion-resistant plate 1 which is contacted with the reaction gas and the cooling liquid and the metal plate 2 which is used for collecting current, the metal plate 2 forms an active area, and the corrosion-resistant plates 1 at two sides form inactive areas, when the galvanic pile works, the corrosion-resistant plate 1 which is contacted with the reaction gas and the cooling liquid can avoid the occurrence of corrosion phenomena, and the metal plate 2 which is not contacted with the reaction gas and the cooling liquid can play a role in collecting current, thereby improving the conductivity of the galvanic pile. The anode collector plate of the fuel cell has the advantages of simple structure, good conductivity, strong corrosion resistance and low cost, and can improve the corrosion resistance of the collector plate while improving the performance of the cell.
It should be noted that, there are many ways of stacking the corrosion-resistant plate 1 and the metal plate 2, which are not limited in the embodiment of the present invention, and in the embodiment of the present invention, the corrosion-resistant plate 1 and the metal plate 2 are preferably individually processed and then assembled together by bolts; of course, the corrosion-resistant plate 1 can also be machined onto the metal plate 2 by means of injection molding.
In order to improve the adhesion between the corrosion-resistant plate 1 and the metal plate 2, in the anode current collecting plate for a fuel cell according to the embodiment of the present invention, the surface of the metal plate 2 is preferably roughened, so that the corrosion-resistant plate 1 and the metal plate 2 can be effectively adhered to each other.
Of course, the corrosion-resistant plate 1 is made of plastic, and specifically, the corrosion-resistant plate 1 may be made of plastic such as PA9T, PPA, PPS, or PEN.
Specifically, the metal plate 2 may be a copper plate, an aluminum alloy plate, a stainless steel plate, or a titanium plate.
In order to effectively reduce the contact resistance between the bipolar plate and the current collecting plate and facilitate the transmission of current, the anode current collecting plate of the fuel cell disclosed by the embodiment of the invention preferably has a plating layer on the surface of the metal plate 2, wherein the plating layer can be a silver plating layer, a gold plating layer or a PVD gold plating layer.
The embodiment of the invention also discloses a fuel cell stack which comprises a fuel cell anode current collecting plate, wherein the fuel cell anode current collecting plate is the fuel cell anode current collecting plate disclosed by any one of the embodiments.
Because the fuel cell stack adopts the fuel cell anode current collecting plate disclosed in the above embodiment, the fuel cell stack has the technical effects of the fuel cell anode current collecting plate, and the details are not repeated herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A fuel cell anode current collector plate, comprising a corrosion-resistant plate (1) in contact with a reaction gas and a coolant, and a metal plate (2) for collecting current, and wherein the corrosion-resistant plate (1) and the metal plate (2) are stacked to form a composite plate.
2. The fuel cell anode current collecting plate according to claim 1, wherein the corrosion-resistant plate (1) and the metal plate (2) are assembled.
3. The fuel cell anode current collecting plate according to claim 1, wherein the corrosion-resistant plate (1) and the metal plate (2) are injection-molded.
4. The fuel cell anode current collecting plate according to claim 1, wherein the surface of the metal plate (2) is subjected to a roughening treatment.
5. The fuel cell anode current collector plate according to claim 1, wherein the corrosion-resistant plate (1) is made of plastic.
6. The fuel cell anode current collector according to claim 1, wherein the metal plate (2) is a copper-clad plate, or an aluminum alloy plate, or a stainless steel plate, or a titanium plate.
7. The fuel cell anode current collector plate according to claim 1, wherein the surface of the metal plate (2) is further provided with a plating layer, and the plating layer is a silver plating layer, or a gold plating layer, or a PVD gold plating layer.
8. A fuel cell stack comprising a fuel cell anode current collector plate, said fuel cell anode current collector plate being a fuel cell anode current collector plate as defined in any of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011569351.6A CN112687905A (en) | 2020-12-26 | 2020-12-26 | Fuel cell anode collector plate and fuel cell stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011569351.6A CN112687905A (en) | 2020-12-26 | 2020-12-26 | Fuel cell anode collector plate and fuel cell stack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112687905A true CN112687905A (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011569351.6A Pending CN112687905A (en) | 2020-12-26 | 2020-12-26 | Fuel cell anode collector plate and fuel cell stack |
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| CN107346831A (en) * | 2016-05-04 | 2017-11-14 | 上海奇谋能源技术开发有限公司 | A kind of method for improving lithium ion battery service life |
| CN208088139U (en) * | 2018-03-28 | 2018-11-13 | 张法军 | A kind of bridge construction support device |
| CN110854401A (en) * | 2018-08-21 | 2020-02-28 | 北京普能世纪科技有限公司 | Integrated collector plate, and preparation method and application thereof |
| CN210516819U (en) * | 2019-11-07 | 2020-05-12 | 深圳市广力铭塑胶制品有限公司 | Sealed anti-creeping and anti-short-circuit battery frame device |
| CN211295268U (en) * | 2020-01-22 | 2020-08-18 | 上海氢晨新能源科技有限公司 | Collector plate of fuel cell stack |
-
2020
- 2020-12-26 CN CN202011569351.6A patent/CN112687905A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2348047A (en) * | 1997-03-29 | 2000-09-20 | Ballard Power Systems | Electrochemical cells |
| US20050112469A1 (en) * | 2003-11-25 | 2005-05-26 | Ngk Spark Plug Co., Ltd. | Lithium cell and method for manufacturing the same |
| CN1815789A (en) * | 2005-02-01 | 2006-08-09 | 上海神力科技有限公司 | Flow-collection mother-board and end-plate composite structure for fuel cells |
| CN101071871A (en) * | 2007-06-05 | 2007-11-14 | 山东大学 | Composite bipolar plate for miniature fuel cell and its preparing method |
| CN201051522Y (en) * | 2007-06-25 | 2008-04-23 | 上海神力科技有限公司 | A fuel battery compound body |
| CN201247792Y (en) * | 2008-08-11 | 2009-05-27 | 重庆宗申技术开发研究有限公司 | Afflux board for fuel battery with proton exchange film |
| CN101667647A (en) * | 2009-08-17 | 2010-03-10 | 新源动力股份有限公司 | Bipolar plate for proton exchange membrane fuel cell |
| CN101656321A (en) * | 2009-09-27 | 2010-02-24 | 湖南维邦新能源有限公司 | Cell current collector and redox flow cell containing same |
| US20140308602A1 (en) * | 2011-11-14 | 2014-10-16 | Nippon Light Metal Company, Ltd. | Collector plate for fuel cells and method for producing same |
| CN203850355U (en) * | 2014-04-23 | 2014-09-24 | 中航锂电（洛阳）有限公司 | Lithium battery ventilation device as well as lithium battery assembly and battery box |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 201800 No. 1788, xiechun Road, Anting Town, Jiading District, Shanghai Applicant after: Shanghai jiehydrogen Technology Co.,Ltd. Address before: 1728 xiechun Road, Anting Town, Jiading District, Shanghai, 201804 Applicant before: Shanghai Jet Hydrogen Technology Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210420 |
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| RJ01 | Rejection of invention patent application after publication |