CN112615021A - Symmetric fuel cell bipolar plate - Google Patents
Symmetric fuel cell bipolar plate Download PDFInfo
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- CN112615021A CN112615021A CN202011551298.7A CN202011551298A CN112615021A CN 112615021 A CN112615021 A CN 112615021A CN 202011551298 A CN202011551298 A CN 202011551298A CN 112615021 A CN112615021 A CN 112615021A
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- flow field
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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
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
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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
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0213—Gas-impermeable carbon-containing materials
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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
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/0263—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant having meandering or serpentine paths
-
- 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
- H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
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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
Abstract
The invention provides a symmetrical fuel cell bipolar plate, which comprises an anode plate and a cathode plate, wherein the back surfaces of the anode plate and the cathode plate are connected, an anode flow field is arranged on the anode plate, a cathode flow field is arranged on the cathode plate, and the back surfaces of the anode plate and the cathode plate are coupled to form a cooling flow field; the anode plate is also provided with a first anode manifold port and a second anode manifold port which are communicated with the anode flow field through an anode flow field air inlet and an anode flow field air outlet respectively; the cathode plate is also provided with a first cathode manifold port and a second cathode manifold port which are communicated with the cathode flow field through a cathode flow field air inlet and a cathode flow field air outlet respectively; the anode flow field air inlet and the cathode flow field air outlet are arranged at the same end, and the shapes of the hydrogen flow field transition region and the air flow field transition region are completely symmetrical or mirror-symmetrical, so that the whole fuel cell stack performance is improved, the design difficulty is reduced, and the development period is shortened.
Description
Technical Field
The invention belongs to the technical field of fuel cell design and manufacture, and particularly relates to a flow field symmetric fuel cell bipolar plate.
Background
The fuel cell is a device for generating electricity through the electrochemical reaction of hydrogen and oxygen, the reaction product is water, and the fuel cell is clean energy with wide application prospect and huge potential. The fuel cell directly converts chemical energy into electrical energy through electrode reaction, so that the energy conversion efficiency is not limited by the Carnot cycle.
The energy conversion efficiency of the proton exchange membrane fuel cell is as high as 60% -80%, and the actual use efficiency is twice of that of a common internal combustion engine. The core of the proton exchange membrane fuel cell is an MEA component and a bipolar plate, wherein the MEA is formed by placing two carbon fiber paper electrodes sprayed with Nafion solution and Pt catalyst on two sides of a pretreated proton exchange membrane, enabling the catalyst to be close to the proton exchange membrane, pressing the carbon fiber paper electrodes at a certain temperature and pressure, and the bipolar plate is used for providing a gas distribution channel for hydrogen and oxygen, isolating fuel and oxidant, conducting electricity and conducting electrochemical reaction heat and providing a support structure for the MEA component.
The bipolar plate is made of graphite materials, and the existing graphite bipolar plate has the problem of uneven distribution of hydrogen when the hydrogen enters an activation area, so that the whole stack performance of a fuel cell is greatly influenced; meanwhile, the distribution areas on the two sides are independently designed, the matching performance is difficult to guarantee, and the design work is increased.
Disclosure of Invention
The invention aims to provide a symmetrical fuel cell bipolar plate to solve the problems that the distribution area of the bipolar plate of the existing fuel cell is difficult to design and the distribution areas on the two sides of a hydrogen chamber need to be designed independently.
The specific scheme is as follows: a symmetrical fuel cell bipolar plate comprises an anode plate and a cathode plate connected with each other at the back, wherein the anode plate is provided with an anode flow field, the cathode plate is provided with a cathode flow field, the back of the anode plate and the back of the cathode plate are coupled to form a cooling flow field,
the anode plate is also provided with a first anode manifold port and a second anode manifold port which are communicated with the anode flow field through an anode flow field air inlet and an anode flow field air outlet respectively;
the cathode plate is also provided with a first cathode manifold port and a second cathode manifold port which are communicated with the cathode flow field through a cathode flow field air inlet and a cathode flow field air outlet respectively;
an anode flow field air inlet transition area is arranged between the anode flow field air inlet and the anode flow field; a cathode flow field exhaust transition area is arranged between the cathode flow field exhaust port and the cathode flow field;
the anode flow field air inlet transition area and the cathode flow field air outlet transition area are arranged in a mirror image or symmetrical mode.
The further technical scheme of the invention is as follows: defining the direction from the first anode manifold port to the second anode manifold port as the length direction, and the vertical length direction as the width direction;
an anode flow field exhaust transition area is also arranged between the anode flow field exhaust port and the anode flow field; a cathode flow field air inlet transition area is arranged between the cathode flow field air inlet and the cathode flow field; the exhaust transition area of the anode flow field is mirror image or symmetrical with the intake transition area of the cathode flow field.
The further technical scheme of the invention is as follows: the first anode manifold port and the second cathode manifold port are respectively arranged at two sides of one end in the width direction; similarly, the second anode manifold port and the first cathode manifold port are respectively arranged at two sides of the other end in the width direction;
the first anode manifold port and the second anode manifold port are arranged on different sides, and the first cathode manifold port and the second cathode manifold port are arranged on different sides in the width direction.
The further technical scheme of the invention is as follows: the anode flow field air inlet and the cathode flow field air outlet are arranged on two opposite sides in the width direction; the anode flow field exhaust port and the cathode flow field air inlet are also arranged on two opposite sides in the width direction.
The further technical scheme of the invention is as follows: the bottom end structures of the first anode manifold port and the second cathode manifold port are the same, and the height of the first anode manifold port is smaller than that of the second cathode manifold port;
the second anode manifold port has the same structure as the bottom end of the first cathode manifold port, and the height of the second anode manifold port is smaller than that of the first cathode manifold port;
the top ends of the first anode manifold port and the second anode manifold port are respectively provided with a positioning area, and the positioning areas are provided with PIN needle clamping grooves and positioning holes.
The further technical scheme of the invention is as follows: the anode flow field is a wave-shaped bent airflow channel; the cathode flow field is a straight gas flow channel.
The further technical scheme of the invention is as follows: the negative plate and the positive plate are made of graphite.
The further technical scheme of the invention is as follows: the two ends of the cooling flow field are respectively connected with a cooling manifold port through a cooling flow field transition region; one of the cooling branch ports is arranged between the first anode branch port and the second cathode branch port, and the other cooling branch port is arranged between the second anode branch port and the first cathode branch port.
The further technical scheme of the invention is as follows: the transition region of the cooling flow field is an axisymmetric or point-symmetric channel.
Has the advantages that: the invention provides a symmetrical fuel cell bipolar plate, which comprises an anode plate and a cathode plate, wherein the back surfaces of the anode plate and the cathode plate are connected, an anode flow field is arranged on the anode plate, a cathode flow field is arranged on the cathode plate, and the back surfaces of the anode plate and the cathode plate are coupled to form a cooling flow field; the anode plate is also provided with a first anode manifold port and a second anode manifold port which are communicated with the anode flow field through an anode flow field air inlet and an anode flow field air outlet respectively; the cathode plate is also provided with a first cathode manifold port and a second cathode manifold port which are communicated with the cathode flow field through a cathode flow field air inlet and a cathode flow field air outlet respectively; the anode flow field air inlet and the cathode flow field air outlet are arranged at the same end, and the shapes of the hydrogen flow field transition region and the air flow field transition region are completely symmetrical or mirror-symmetrical, so that the whole fuel cell stack performance is improved, the design difficulty is reduced, and the development period is shortened.
The inventor of the present invention finds that:
in the working engineering of the fuel cell, an anode reactant enters a flow field activation reaction area through a flow field runner air inlet, then reaches a catalyst layer through a diffusion layer, is changed into ions after catalysis, passes through a proton exchange membrane, and reacts with the cathode reactant in a cathode flow field activation reaction area to form current.
The width of the anode manifold port of the traditional graphite bipolar plate is small, so that the gas inlet of the hydrogen flow field is short, the transition area of the hydrogen flow field is narrow, and the hydrogen is difficult to be uniformly distributed when entering the activation area; therefore, the invention designs the shape of the anode manifold port, so that the length and the angle of the hydrogen flow field inlet corresponding to the anode manifold port are completely consistent with the length and the angle of the air flow field inlet corresponding to the cathode manifold port, thereby widening the transition region of the hydrogen flow field, ensuring that the distribution of the reaction hydrogen in the activation region is more uniform, and improving the performance of the whole fuel cell stack.
Meanwhile, in a further technical scheme, the invention ensures that the lengths and the angles of the air inlet and the air outlet of the hydrogen flow field corresponding to the anode manifold port and the air inlet and the air outlet of the air flow field corresponding to the cathode manifold port are completely consistent through the design of the shape of the anode manifold port, and the shapes of the hydrogen flow field transition region and the air flow field transition region are completely symmetrical, and only one side of the hydrogen flow field transition region needs to be designed and simulated in the design stage, so that the design difficulty is greatly reduced, and the design period is shortened.
Meanwhile, in a further technical scheme, the length and the angle of the air inlet and the air outlet of the hydrogen flow field opposite to the anode manifold port and the length and the angle of the air outlet and the air inlet of the air flow field opposite to the cathode manifold port are completely consistent through the design of the shape of the anode manifold port, so that the transition region of the cooling flow field is in an axisymmetric structure, the design difficulty is reduced to a certain extent in the design stage, and the uniformity of the cooling flow field is improved.
Meanwhile, in a further technical scheme, by designing the shape of the anode manifold port, because the area of the anode manifold port is smaller, the lengths and angles of the air inlet and the air outlet of the hydrogen flow field and the air outlet of the air flow field of the cathode manifold port are completely consistent, so that an erected area is formed beside the anode manifold port, the design of characteristics such as PIN needle clamping grooves, positioning holes and the like can be carried out in the erected area, and extra areas are not required to be developed for carrying out the design, so that the whole-plate utilization rate is improved, the ratio of an activated area is increased, and the power density of the fuel cell stack is increased to a certain extent.
Drawings
FIG. 1 is a schematic diagram of a front perspective structure of an anode plate according to the present invention;
FIG. 2 is a schematic front perspective view of a cathode plate according to the present invention;
FIG. 3 is a schematic view of the back side of the cathode plate according to the present invention;
FIG. 4 is a schematic view of the anode side plan structure of the bipolar plate of the present invention;
fig. 5 is a schematic view of the cathode side plan structure of the bipolar plate of the present invention.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The invention will now be further described with reference to the accompanying drawings and detailed description.
As shown in connection with fig. 1-3, this embodiment provides a symmetric fuel cell graphite bipolar plate comprising an anode plate as shown in fig. 1 and a cathode plate as shown in fig. 2.
Wherein, the front of the anode plate is provided with a hydrogen flow field 3 which is used for introducing hydrogen and is used as an anode flow field, and the front of the cathode plate is provided with an air flow field 7 which is used for introducing air and is used as a cathode flow field; meanwhile, the back of the cathode plate is provided with a groove of the cooling flow field 11, and the cooling flow field 11 is formed by coupling the back of the anode plate and the back of the cathode plate.
In this embodiment:
referring to fig. 1 and 4, a first anode manifold port 2 and a second anode manifold port 21 are respectively disposed at two ends of the anode plate, in the graphite bipolar plate of this embodiment, a direction from the first anode manifold port 2 to the second anode manifold port 21 is defined as a length direction, and a direction perpendicular to the length direction is defined as a width direction, the first anode manifold port 2 is used for injecting hydrogen, and the second anode manifold port 21 is used for removing reaction products or residues.
An anode flow field inlet 12 is further disposed at the end of the first anode manifold 2, the first anode manifold 2 is communicated with the hydrogen flow field 3 through the anode flow field inlet 12 for injecting hydrogen into the oxygen flow field 3, in this embodiment, the anode flow field inlet 12 is a plurality of inlets extending along the length direction and obliquely outward in the width direction, so that the lower end of the first anode manifold 2 is an acute angle inward, and the bottom side of the first anode manifold is an oblique triangle.
Similarly, at the end of the anode plate away from the first anode manifold port 2, the hydrogen flow field 3 is communicated with the second anode manifold port 21 through an anode flow field exhaust port 13; the specific structure of the anode flow field exhaust port 13 is as follows: a plurality of exhaust ports arranged in the longitudinal direction of the hole and extending obliquely inward in the width direction, and the second anode manifold port 21 has the same structure as the first anode manifold port 2.
Meanwhile, in this embodiment, an anode flow field intake transition region 1 is further disposed between the anode flow field intake port 12 and the hydrogen flow field 3, and similarly, an anode flow field exhaust transition region 11 is further disposed between the anode flow field exhaust port 13 and the hydrogen flow field 3.
Meanwhile, in the width direction, the first anode manifold port 2 and the second anode manifold port 21 are arranged on different sides, so that the distribution of the anode flow field air inlet 12 and the anode flow field air outlet 13 on different sides is realized, hydrogen flows along the opposite angle of the anode plate, and the hydrogen distribution uniformity is further improved.
As shown in fig. 2, 3 and 5, the cathode plate is further provided with a second cathode manifold port 6 and a first cathode manifold port 61, the second cathode manifold port 6 is provided at the rear end in the longitudinal direction, and the first cathode manifold port 61 is provided at the front end in the longitudinal direction.
Meanwhile, the gas circuit structure of the cathode flow field and the anode flow field is approximately the same: the second cathode manifold port 6 is communicated with the cathode flow field exhaust port 14 and the cathode flow field exhaust transition region 5 in sequence to serve as a cathode flow field, and an air flow field 7 for introducing air is introduced; similarly, at the end of the cathode plate away from the first cathode manifold 61, the air flow field 7 is communicated with the first cathode manifold 61 through a cathode flow field inlet transition region 51 and a cathode flow field inlet 15 in sequence.
In this embodiment, the second cathode manifold 6 and the first cathode manifold 61 are disposed on opposite sides, achieving a diagonal distribution.
The anode flow field inlet 12 and the cathode flow field outlet 14 are disposed at the same end, and have the same length and the same inlet angle. The anode flow field exhaust port 13 and the cathode flow field air inlet 15 are arranged at the same end, and the length and the exhaust angle are the same; the anode flow field gas inlet 12 and the cathode flow field gas outlet 14 are arranged on two opposite sides in the width direction; the anode flow field exhaust port 13 and the cathode flow field air inlet 15 are also arranged on two opposite sides in the width direction; the realization is as follows: the cathode flow field exhaust transition region 5 between the cathode flow field exhaust 14 and the air flow field 7 mirrors the anode flow field intake transition region 1.
Similarly, a cathode flow field intake transition region 51 is also arranged between the cathode flow field intake 15 and the air flow field 7; the anode flow field exhaust transition 51 mirrors the cathode flow field inlet transition 11.
Of course, in other embodiments, the two intake transition areas may also be in a symmetrical structure with different surfaces, and the two exhaust transition areas are also in a symmetrical structure with different surfaces, which can also achieve the purpose of the present invention.
The first anode manifold port 2 and the second cathode manifold port 6 are respectively arranged at two sides of the width direction of the air inlet end; similarly, the second anode manifold port 21 and the first cathode manifold port 61 are provided on both sides in the width direction of the exhaust end, respectively.
In this embodiment, the bottom end structures of the first anode manifold port 2 and the second cathode manifold port 6 are the same, and the height of the first anode manifold port 2 is smaller than that of the second cathode manifold port 6; the bottom end structure of the second anode manifold port 21 is the same as that of the first cathode manifold port 61, and the height of the second anode manifold port 21 is smaller than that of the first cathode manifold port 61; furthermore, the top ends of the first anode manifold port 2 and the second anode manifold port 21 are respectively provided with a positioning area 4, and the positioning areas are provided with PIN needle clamping grooves and positioning holes to realize plugging and positioning.
Two ends of the cooling flow field 11 are respectively connected with a cooling manifold port 10 and a cooling manifold port 101 through a cooling flow field transition region; one of the cooling manifold ports 10 is arranged between the first anode manifold port 2 and the second cathode manifold port 6, and the other cooling manifold port 101 is arranged between the second anode manifold port 21 and the first cathode manifold port 61, so that the axial symmetry of the cooling flow field 11 is realized, the design is simple, and the cooling effect is good.
In order to fully utilize hydrogen and effectively drain water, the anode flow field is a wave-shaped bent airflow channel; to reduce the performance loss caused by excessive pressure drop, the cathode flow field is a straight gas flow channel.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a symmetrical formula fuel cell bipolar plate, includes anode plate and the negative plate that the back is connected, is equipped with the anode flow field on this anode plate, is equipped with the cathode flow field on this negative plate, and anode plate and negative plate back coupling constitute cooling flow field, its characterized in that:
the anode plate is also provided with a first anode manifold port and a second anode manifold port which are communicated with the anode flow field through an anode flow field air inlet and an anode flow field air outlet respectively;
the cathode plate is also provided with a first cathode manifold port and a second cathode manifold port which are communicated with the cathode flow field through a cathode flow field air inlet and a cathode flow field air outlet respectively;
an anode flow field air inlet transition area is arranged between the anode flow field air inlet and the anode flow field; a cathode flow field exhaust transition area is arranged between the cathode flow field exhaust port and the cathode flow field;
the anode flow field air inlet transition area and the cathode flow field air outlet transition area are arranged in a mirror image or symmetrical mode.
2. The symmetric fuel cell bipolar plate of claim 1, wherein: defining the direction from the first anode manifold port to the second anode manifold port as the length direction, and the vertical length direction as the width direction;
an anode flow field exhaust transition area is also arranged between the anode flow field exhaust port and the anode flow field; a cathode flow field air inlet transition area is arranged between the cathode flow field air inlet and the cathode flow field; the exhaust transition area of the anode flow field is mirror image or symmetrical with the intake transition area of the cathode flow field.
3. The symmetric fuel cell bipolar plate of claim 2, wherein: the first anode manifold port and the second cathode manifold port are respectively arranged at two sides of one end in the width direction; similarly, the second anode manifold port and the first cathode manifold port are respectively arranged at two sides of the other end in the width direction;
the first anode manifold port and the second anode manifold port are arranged on different sides, and the first cathode manifold port and the second cathode manifold port are arranged on different sides in the width direction.
4. The symmetric fuel cell bipolar plate of claim 2, wherein: the anode flow field air inlet and the cathode flow field air outlet are arranged on two opposite sides in the width direction; the anode flow field exhaust port and the cathode flow field air inlet are also arranged on two opposite sides in the width direction.
5. The symmetric fuel cell bipolar plate of claim 2, wherein: the bottom end structures of the first anode manifold port and the second cathode manifold port are the same, and the height of the first anode manifold port is smaller than that of the second cathode manifold port;
the second anode manifold port has the same structure as the bottom end of the first cathode manifold port, and the height of the second anode manifold port is smaller than that of the first cathode manifold port;
the top ends of the first anode manifold port and the second anode manifold port are respectively provided with a positioning area, and the positioning areas are provided with PIN needle clamping grooves and positioning holes.
6. The symmetric fuel cell bipolar plate of any one of claims 1-5, wherein: the anode flow field is a wave-shaped bent airflow channel; the cathode flow field is a straight gas flow channel.
7. The symmetric fuel cell bipolar plate of any one of claims 1-5, wherein: the negative plate and the positive plate are made of graphite.
8. The symmetric fuel cell bipolar plate of any one of claims 2-5, wherein: the two ends of the cooling flow field are respectively connected with a cooling manifold port through a cooling flow field transition region; one of the cooling branch ports is arranged between the first anode branch port and the second cathode branch port, and the other cooling branch port is arranged between the second anode branch port and the first cathode branch port.
9. The symmetric fuel cell bipolar plate of claim 8, wherein: the transition region of the cooling flow field is an axisymmetric or point-symmetric channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011551298.7A CN112615021B (en) | 2020-12-24 | 2020-12-24 | Symmetric fuel cell bipolar plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011551298.7A CN112615021B (en) | 2020-12-24 | 2020-12-24 | Symmetric fuel cell bipolar plate |
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| CN112615021A true CN112615021A (en) | 2021-04-06 |
| CN112615021B CN112615021B (en) | 2022-07-12 |
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| CN1342333A (en) * | 1998-11-25 | 2002-03-27 | 瓦斯技术研究所 | Sheet metal bipolar plate design for polymer electrolyte membrane fuel cells |
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| CN102969513A (en) * | 2012-12-03 | 2013-03-13 | 上海交通大学 | Large-area metal bipolar plate for automobile fuel cell |
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| CN104838529A (en) * | 2012-10-30 | 2015-08-12 | 米其林集团总公司 | Bipolar plate for fuel cell |
| CN105870477A (en) * | 2016-06-08 | 2016-08-17 | 江苏耀扬新能源科技有限公司 | Fuel cell bipolar plate |
| CN110214392A (en) * | 2017-01-24 | 2019-09-06 | 大众汽车有限公司 | Bipolar plate seal assemblies and fuel cell stack with it |
| CN210224176U (en) * | 2019-09-03 | 2020-03-31 | 上海骥翀氢能科技有限公司 | Proton exchange membrane fuel cell bipolar plate with improved common conduit and fluid channel |
| CN210443621U (en) * | 2019-07-31 | 2020-05-01 | 上海佑戈金属科技有限公司 | Metal matrix bipolar plate |
| CN111640959A (en) * | 2020-06-02 | 2020-09-08 | 浙江锋源氢能科技有限公司 | Single cell assembly and fuel cell stack |
| CN112072136A (en) * | 2020-08-31 | 2020-12-11 | 珠海格力电器股份有限公司 | Bipolar plate and fuel cell |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342333A (en) * | 1998-11-25 | 2002-03-27 | 瓦斯技术研究所 | Sheet metal bipolar plate design for polymer electrolyte membrane fuel cells |
| CN1787261A (en) * | 2004-12-10 | 2006-06-14 | 中国科学院大连化学物理研究所 | Impacted metal double polar plate structure and preparation method thereof |
| CN104584303A (en) * | 2012-06-26 | 2015-04-29 | 瑞典电池公司 | Flow field plate for a fuel cell |
| CN104838529A (en) * | 2012-10-30 | 2015-08-12 | 米其林集团总公司 | Bipolar plate for fuel cell |
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| CN110214392A (en) * | 2017-01-24 | 2019-09-06 | 大众汽车有限公司 | Bipolar plate seal assemblies and fuel cell stack with it |
| CN210443621U (en) * | 2019-07-31 | 2020-05-01 | 上海佑戈金属科技有限公司 | Metal matrix bipolar plate |
| CN210224176U (en) * | 2019-09-03 | 2020-03-31 | 上海骥翀氢能科技有限公司 | Proton exchange membrane fuel cell bipolar plate with improved common conduit and fluid channel |
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| CN112072136A (en) * | 2020-08-31 | 2020-12-11 | 珠海格力电器股份有限公司 | Bipolar plate and fuel cell |
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| Publication number | Publication date |
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| CN112615021B (en) | 2022-07-12 |
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