CN109473692A - The metal double polar plates of Proton Exchange Membrane Fuel Cells - Google Patents
The metal double polar plates of Proton Exchange Membrane Fuel Cells Download PDFInfo
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- CN109473692A CN109473692A CN201710805672.3A CN201710805672A CN109473692A CN 109473692 A CN109473692 A CN 109473692A CN 201710805672 A CN201710805672 A CN 201710805672A CN 109473692 A CN109473692 A CN 109473692A
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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
-
- 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
- H01M8/026—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
-
- 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
- H01M8/10—Fuel cells with solid electrolytes
- H01M2008/1095—Fuel cells with polymeric electrolytes
-
- 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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- 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 metal double polar plates of one proton exchanging film fuel battery, metal double polar plates include the first metal plate and the second metal plate, there is metal frame on the first metal plate and the second metal plate, have the first groove being made of a plurality of L-type structure and inverted L shape structure as the first flow field, the fuel gas channel connection over and under the metal frame of the first metal plate respectively of the both ends of each first groove in the metal frame on the first metal plate；And have the second groove being made of a plurality of wave concaveconvex structure as the second flow field in the second metal frame on metal plate, the both ends of each second groove are connect with the oxidizer gas channel over and under the metal frame of the second metal plate respectively, increase by L-type, inverted L shape structure and wave concaveconvex structure fuel gas and oxidant gas on bimetallic pole plate with the reaction time of catalyst, to improve the reaction rate and efficiency of entire Proton Exchange Membrane Fuel Cells.
Description
Technical field
The present invention is to disclose a kind of fuel cell, in particular to the metal bipolar of a proton exchanging film fuel battery
Plate.
Background technique
Fuel cell is a kind of directly to convert fuel by the electrocatalytic reaction on electrode with the chemical energy in oxidant
For the power generator of electric energy.Fuel cell is mainly made of membrane electrode (MEA) and bipolar plates, and wherein membrane electrode is fuel cell
Core, bipolar plates be battery important composition part, play in a fuel cell collected current, gas distribution and water management,
The effect of heat management.There are many kinds of the types of bipolar plates, and the bipolar plates generallyd use are Machined graphite bipolar plates, technology
Comparative maturity, but processing charges is expensive, is mainly used in testing indoor experimental study.For at present, fuel battery double plates
Research be concentrated mainly on soft graphite bipolar plates (and injection molding graphite bi-polar plate), metal double polar plates and combined dual-polar plate.By
Have many advantages, such as that conductive, thermal conductivity is good in metal material, high mechanical strength, be easy sheet, easy processing processing becomes fuel electricity
One of pond bipolar plate material.
In the prior art, metal double polar plates are to process groove structure on titanium mesh in the way of punching press, this
A little groove structures are the flow field for constituting anode plate and cathode plate, and the form in flow field is linear type or single channel snake stream mostly
, after fuel gas and oxidant gas enter the air flue entrance of bipolar plates with the catalyst reaction in bipolar plates, due to
It is the design of linear type or single channel snake type in the flow field of anode plate and cathode plate, so that fuel gas and oxidant gas
Body is trapped in the time that groove is formed by flow field and is not enough to allow catalysis in fuel gas and oxidant gas and bipolar plates
Agent is reacted completely, causes the reaction rate of fuel gas and oxidant not high, and reduces the efficiency of entire fuel cell.
Summary of the invention
The main purpose of the present invention is to provide the metal double polar plates of a proton exchanging film fuel battery, and wherein metal is double
Electrode plate structure is made of the first metal plate and the second metal plate, in have on the first metal plate by L-type structure and inverted L shape structure according to
Sequence is arranged or is staggered the constituted first groove of setting, increases by the by L-type structure and inverted L shape structure structure
The distance of one groove with increase fuel gas on the first metal plate with the reaction time of catalyst, enable fuel gas with
Catalyst on first metal plate is reacted completely and can be reacted uniformly, to improve the reaction rate of entire fuel cell simultaneously
Increase the effective utilization of fuel cell.
Another object of the present invention is to provide the metal double polar plate structures of a proton exchanging film fuel battery, wherein gold
Belong on the second metal plate of bipolar plates with concavo-convex with L-type wave and the concavo-convex sequential of inverted L shape wave is arranged or L-type
Wave is concavo-convex and the second groove of the concavo-convex setting that is staggered of inverted L shape wave.
According to above-mentioned purpose, the invention discloses the metal double polar plates of a proton exchanging film fuel battery, and wherein metal is double
Pole plate includes the first metal plate and the second metal plate, has metal frame respectively on the first metal plate and the second metal plate, first
The two sides up and down of the metal frame of metal plate and the second metal plate are respectively equipped with corresponding three channels, wherein the fuel of top
Gas passage and the fuel gas channel of lower section be diagonal setting and correspond to each other, the oxidizer gas channel of top and lower section
Oxidizer gas channel be diagonal setting and correspond to each other, that the cooling medium channel of top is disposed over fuel gas is logical
Fuel gas channel that the cooling medium channel of between road and oxidizer gas channel and lower section is arranged below and lower section
Between oxidizer gas channel, and when the first metal plate and the second metal plate are provided opposite to, the first metal plate and the second gold medal
Belong to fuel gas channel, cooling medium channel aperture and oxidizer gas channel over and under plate to open and correspond to each other,
There is the first flow field being made of a plurality of first groove in metal frame on first metal plate, one end of each first groove with
Above the metal frame of the first metal plate fuel gas channel connection and each first groove the other end in the first gold medal
Belong to the fuel gas channel connection below the metal frame of plate, wherein first groove is set by L-type structure and inverted L shape structure sequential
It sets or is staggered setting by L-type structure and inverted L shape structure；And have in the second metal frame on metal plate by a plurality of the
The second flow field that two grooves are constituted, one end of each second groove and the oxidant gas above the metal frame of the second metal plate
The other end of the connection of body channel and each second groove connects with the cooling medium channel below the metal frame of the second metal plate
It connects, wherein second groove is wave concaveconvex structure, by L-type structure, inverted L shape structure and wave concaveconvex structure, to increase combustion
Material gas and oxidant gas are trapped in the time in first groove and second groove respectively, to increase in the first metal plate
On, reaction time of fuel gas and catalyst and on the second metal plate, the reaction time of oxidant gas and catalyst,
Enable fuel gas reacted completely with the catalyst on the first metal plate and oxidant gas can in the second metal plate
On catalyst react completely and can reach simultaneously reaction uniformly, to improve reaction rate and the increasing of entire fuel cell
The effective utilization of refuelling battery.
Detailed description of the invention
Fig. 1 is the schematic cross-section of the metal double polar plates of a disclosed embodiment according to the present invention.
Fig. 2 is first groove of the metal double polar plates of a disclosed embodiment according to the present invention on the first metal polar plate
Top view.
Fig. 3 is the top view of the second metal polar plate of the metal double polar plates of a disclosed embodiment according to the present invention.
Fig. 4 is the partial enlargement diagram of Fig. 3.
Specific embodiment
In order to make the purpose of the present invention, technical characteristic and advantage, can more correlative technology field personnel understood, and be able to
Implement the present invention, cooperates appended schema herein, specifically illustrates technical characteristic and embodiment of the invention, and enumerate preferable reality
Apply example further explanation.It is not also needed with the schema hereinafter compareed to express signal related with feature of present invention
It is completely drawn according to practical situation.And the technology well-known to those skilled in the art involved in the explanation of this case embodiment
Content is also no longer stated.
Referring first to Fig. 1.Fig. 1 shows the metal double polar plates of the Proton Exchange Membrane Fuel Cells of one embodiment of the invention
Structural schematic diagram.In Fig. 1, metal double polar plates 1 are made of the first metal plate 10 and the second metal plate 20.First metal plate 10
And second have metal frame 102,202 in metal plate 20, wherein distinguishing in the two sides up and down of the metal frame 102 of the first metal plate 10
It is provided with first passage 121,122, second channel road 141,142 and third channel 161,162, is respectively fuel gas channel
121,122, oxidizer gas channel 141,142 and cooling medium channel 161,162.In one embodiment of this invention, fuel
Gas is hydrogen (H2), oxidant gas is air (Air) and cooling medium is water.It will also appreciate that for convenience of description,
Be then in the following description with fuel gas channel 121,122, oxidizer gas channel 141,142 and cooling medium channel 161,
162 indicate first passage 121,122, second channel road 141,142 and third channel 161,162.
It is noted that fuel gas channel 121 and fuel gas channel 122 are oppositely arranged with diagonally opposing corner, oxidant gas
Body channel 141 and oxidant gas channel 142 be also arranged in diagonally opposing corner mode, cooling medium channel 161 and cooling medium channel
162 are separately positioned between fuel gas channel 121,122 and oxidizer gas channel 141,142.In the second metal plate
Fuel gas channel 221 on 20,222, oxidizer gas channel 241,242 and cooling medium channel 261,262 are also identical
Set-up mode do not add to state herein.In addition, when the first metal plate 10 is combined with the second metal plate 20, in the first metal plate
Fuel gas channel 121, oxidizer gas channel 141 and the cooling medium channel 161 and the second gold medal of 10 102 top of metal frame
Fuel gas channel 221, oxidizer gas channel 241 and the cooling medium channel 261 for belonging to 202 top of metal frame of plate 20 are mutual
It is corresponding, and fuel gas channel 122, oxidizer gas channel 142 and cooling below the metal frame 102 of the first metal plate 10
Medium channel 162 respectively with the fuel gas channel 222 of the lower section of the metal frame of the second metal plate 20 202, oxidizer gas channel
242 and cooling medium channel 262 correspond to each other.
In an embodiment of the present invention, the substrate of the first metal plate 10 and the second metal plate 20 includes stainless steel, titanium, titanium
Alloy material, aluminium or aluminium alloy material.The thickness range of first metal plate 10 and the second metal plate 20 is 0.5mm-0.9mm.And
First metal plate 10 and the second metal plate 20 with welding manner in conjunction with.In another embodiment, the first metal plate 10 and the second metal
Plate 20 is sealed using seal rubber, this seal rubber can be polyethylene terephthalate (PET, polyethylene
Terephthalate) or polyethylene naphthalate (PEN, poly (ethylene naphtalate)), melted by heat
Or the mode of bonding, so that the first metal plate 10, seal rubber and the second metal plate 20 is formed one, plays sealing function.
In addition it is noted that the present invention illustrates primarily directed to metal double polar plates, and further include in metal double polar plates
There are waterway seal part, oxidant gas sealing element and the isostructural material of proton exchange membrane and its function not to be begged in the present invention
In the range of, therefore, do not add to state in the description.
Next referring to Fig. 2.Fig. 2 indicate disclosed herein an embodiment in, the first ditch on the first metal plate
The top view of slot.In Fig. 2, there is the be made of a plurality of first groove 182 in the metal frame 102 of the first metal plate 10
One flow field 18, here, the flow field structure in the first flow field 18 uses L-type structure or inverted L shape structure, the mode of setting be can be
L-type structure is arranged in a manner of staggered with inverted L shape structure sequential or by L-type structure and inverted L shape structure,
Spread pattern does not limit herein.It is noted that by a plurality of first groove 182 in a manner of L-type structure or inverted L shape structure
It is arranged on the first metal plate 10 and is as the purpose in the first flow field 18, since flow field in the prior art is mostly linear knot
Structure, therefore after fuel gas enters the flow field being made of rectilinear structure, fuel gas is trapped in the time in flow field very
It is short, so that fuel gas can not react completely with the catalyst on groove, and cause the efficiency of Proton Exchange Membrane Fuel Cells not
It is good.
Therefore, in order to time of the fuel gas to be solved in flow field is too short and what can not be reacted completely with catalyst asks
Topic will first be oppositely arranged originally the fuel gas of (or claiming to be arranged in parallel) in the present invention in about 10 two sides of the first metal plate
Body channel, is arranged in a manner of diagonally opposing corner, therefore, in order to be pivotally connected with the fuel gas channel 121,122 of two sides, in the present invention
In, the groove of rectilinear structure is changed to L-type structure or inverted L shape structure, by the first of L-type structure and/or inverted L shape structure
Groove 182 extends residence time of the fuel gas in first groove 182, and fuel gas can also in L-type structure and/or
In the first groove 182 of inverted L shape structure be uniformly mixed and fuel gas have time enough in each of the first flow field 18
Catalyst in first groove 182 is complete, uses the efficiency for promoting Proton Exchange Membrane Fuel Cells.In addition, more into one
For step, each first groove 182 with about 102 two sides of metal frame of the first metal plate 10 fuel gas channel 121,
122 are pivotally connected in a stepped fashion, that is to say, that when the channel mouth of first groove 182 and fuel gas channel 121,22 is pivotally connected,
Having a segment structure is hierarchic structure (indicating in non-figure), this hierarchic structure is for convenience by first groove 182 and fuel gas
The channel mouth of channel 121,22 be pivotally connected designed.
Then, it please also refer to Fig. 3 and Fig. 4.Fig. 3 indicate disclosed herein an embodiment in, in the second metal plate
On second groove top view, Fig. 4 indicates the partial enlargement diagram of Fig. 3.
In Fig. 3 and Fig. 4, has in the metal frame 202 of the second metal plate 20 and be made of a plurality of second groove 282
Second flow field 28, the flow field structure in the second flow field 28 uses wave concaveconvex structure 2822 herein.And the second flow field 28 with it is first-class
The concept of the design of field 18 is identical, and the time also for oxidant gas to be solved in the second flow field is too short, recessed by wave
Male structure 2822 extends oxidant gas in the time in the second flow field 28, and can be with second ditch of each in the second flow field 28
Catalyst on slot 282 reacts completely, uses the efficiency for promoting Proton Exchange Membrane Fuel Cells.
It is noted that constituting the height h of the wave concaveconvex structure 2822 of each second groove 282 in the second flow field 28
For 0.2mm-0.6mm, preferably be highly 0.3mm-0.5mm, be more preferably highly 0.2mm-0.4mm, here, signified height
Degree is to be calculated with the wave concaveconvex structure 2822 of second groove 282, the highest point protruded to the surface of the second metal plate 20,
And in one embodiment of this invention, the height of the wave concaveconvex structure 2822 in each second groove 282 can it is identical or
It is different.In another embodiment of the present invention, the height of the wave concaveconvex structure 2822 in adjacent two second grooves 282
Can also be identical or different, purpose, which is provided to oxidant gas to be allowed, can have time enough that can be trapped in second
On flow field 28, and reacted completely with catalyst.
In addition, in the present invention, constituting adjacent two first grooves 182 in the first flow field 18 and constituting the second flow field 28
The distance between adjacent two second grooves 282 are 0.2mm-0.4mm.
Therefore, in summary, the present invention is recessed using L-type structure and/or the first groove 182 of inverted L shape structure, wave
The second groove 282 of male structure 2822 extends fuel gas in first groove 182 and oxidant gas in second groove respectively
Residence time on 282, and fuel gas and oxidant gas can also be respectively the first of L-type structure and/or inverted L shape structure
It is uniformly mixed in the second groove 282 of groove 182 and wave concaveconvex structure 2822 and fuel gas is made to have time enough
With in each first groove 182 in the first flow field 18 catalyst and oxidant gas have time enough with second
Catalyst in each second groove 282 in flow field 28 reacts completely, uses the efficiency for promoting Proton Exchange Membrane Fuel Cells.
The foregoing is merely the preferred embodiments of the invention, the claim that is not intended to limit the invention；More than simultaneously
Description, the special personage of correlative technology field should can be illustrated and be implemented, thus it is other without departing from it is disclosed it
The lower equivalent change or modification completed of spirit, should be included in scope of the claims.
Claims (10)
1. the metal double polar plates of a proton exchanging film fuel battery, including the first metal plate and the second metal plate, Yu Suoshu
The institute of metal frame, the first metal plate of Yu Suoshu and second metal plate is respectively provided on one metal plate and second metal plate
The upper and lower two sides for stating metal frame are respectively equipped with corresponding three channels, the wherein first passage of top and the first of lower section and lead to
Road is diagonal setting and corresponds to each other, the third channel of the third channel of top and lower section is diagonal setting and mutually right
Answer, the second channel of top is disposed over the first passage between the third channel of top and lower section it is second logical
Between the first passage and the lower section third channel that road is arranged below, and work as first metal plate and described second
When metal plate is provided opposite to, the first passage over and under first metal plate and second metal polar plate,
The second channel and the third channel correspond to each other, it is characterised in that:
There is the first flow field being made of a plurality of first groove in the metal frame on first metal plate, each described the
One end of one groove is connect and each described with the first passage above the metal frame of first metal plate
The other end of one groove is connect with the first passage below the metal frame of first metal plate, wherein described
One groove is made of L-type structure and inverted L shape structure；And
There is the second flow field being made of a plurality of second groove in the metal frame on second metal polar plate, it is each described
One end of second groove is connect and each described with the third channel above the metal frame of second metal plate
The other end of second groove is connect with the second channel below the metal frame of second metal plate, wherein described
Second groove is wave concaveconvex structure.
2. the metal double polar plates of Proton Exchange Membrane Fuel Cells as described in claim 1, which is characterized in that each described first
One end of groove and the first passage and each second groove above the metal frame of first metal plate
The connecting pin that is connect with the second channel below the metal frame of second metal plate of the other end be respectively rank
Terraced structure.
3. the metal double polar plates of Proton Exchange Membrane Fuel Cells as described in claim 1, which is characterized in that described in adjacent two
The distance between first groove and adjacent two second grooves are 0.2mm-0.4mm.
4. the metal double polar plates of Proton Exchange Membrane Fuel Cells as described in claim 1, which is characterized in that the second groove
The wave concaveconvex structure altitude range be 0.2-0.6mm.
5. metal double polar plates as described in claim 1, which is characterized in that the wave bumps knot of each second groove
The height of structure is identical or different.
6. the metal double polar plates of Proton Exchange Membrane Fuel Cells as described in claim 1, which is characterized in that first metal
The substrate of plate and second metal plate includes stainless steel, titanium, titanium alloy material, aluminium or aluminium alloy material.
7. the metal double polar plates of Proton Exchange Membrane Fuel Cells as claimed in claim 1 or 5, which is characterized in that described first
The thickness range of metal plate and second metal plate is 0.5-0.9mm.
8. the metal double polar plates of Proton Exchange Membrane Fuel Cells as described in claim 1, which is characterized in that the first groove
L-type structure and inverted L shape structure be the staggeredly mutually setting of sequential or L-type structure and inverted L shape structure.
9. the metal double polar plates of Proton Exchange Membrane Fuel Cells as described in claim 1, which is characterized in that first metal
Plate using welding manner or uses in conjunction with seal rubber with second metal plate.
10. the metal double polar plates of Proton Exchange Membrane Fuel Cells as claimed in claim 9, which is characterized in that the sealing rubber
Glue can be polyethylene terephthalate (PET, polyethylene terephthalate) or poly- naphthalenedicarboxylic acid second two
Alcohol ester (PEN, poly (ethylene naphtalate)).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710805672.3A CN109473692A (en) | 2017-09-08 | 2017-09-08 | The metal double polar plates of Proton Exchange Membrane Fuel Cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710805672.3A CN109473692A (en) | 2017-09-08 | 2017-09-08 | The metal double polar plates of Proton Exchange Membrane Fuel Cells |
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| Publication Number | Publication Date |
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| CN109473692A true CN109473692A (en) | 2019-03-15 |
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ID=65658272
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710805672.3A Pending CN109473692A (en) | 2017-09-08 | 2017-09-08 | The metal double polar plates of Proton Exchange Membrane Fuel Cells |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110828842A (en) * | 2019-11-14 | 2020-02-21 | 上海电气集团股份有限公司 | Novel bipolar plate distribution head of proton exchange membrane fuel cell |
| CN114883592A (en) * | 2022-04-18 | 2022-08-09 | 武汉众宇动力系统科技有限公司 | Plate assembly of fuel cell, and cathode plate and anode plate |
| CN117448858A (en) * | 2023-10-18 | 2024-01-26 | 三一氢能有限公司 | Flow field structure and electrolytic tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110828842A (en) * | 2019-11-14 | 2020-02-21 | 上海电气集团股份有限公司 | Novel bipolar plate distribution head of proton exchange membrane fuel cell |
| CN110828842B (en) * | 2019-11-14 | 2022-08-19 | 上海电气集团股份有限公司 | Proton exchange membrane fuel cell bipolar plate distribution head |
| CN114883592A (en) * | 2022-04-18 | 2022-08-09 | 武汉众宇动力系统科技有限公司 | Plate assembly of fuel cell, and cathode plate and anode plate |
| CN114883592B (en) * | 2022-04-18 | 2023-01-24 | 武汉众宇动力系统科技有限公司 | Plate assembly of fuel cell, and cathode plate and anode plate |
| CN117448858A (en) * | 2023-10-18 | 2024-01-26 | 三一氢能有限公司 | Flow field structure and electrolytic tank |
| CN117448858B (en) * | 2023-10-18 | 2024-04-19 | 三一氢能有限公司 | Flow field structure and electrolytic tank |
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