CN109616685A - A kind of fuel cell bipolar plate structure - Google Patents
A kind of fuel cell bipolar plate structure Download PDFInfo
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- CN109616685A CN109616685A CN201811512482.3A CN201811512482A CN109616685A CN 109616685 A CN109616685 A CN 109616685A CN 201811512482 A CN201811512482 A CN 201811512482A CN 109616685 A CN109616685 A CN 109616685A
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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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- 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 present invention relates to a kind of fuel battery double plates layout, oxidant gas import and export is respectively arranged in the two sides of one opposite side of fuel battery flow field；The two sides of another opposite side of flow field, fuel gas import and export occupy a cornerwise both ends, and coolant import and export occupies another cornerwise both ends.On the length direction on the oxidant gas side adjacent with flow field, the width design of oxidant gas is the width more than or equal to flow field.This fuel battery double plates layout, oxidant gas enters fuel cell oxidant gas flowfield from oxidant gas import and participates in electrochemical reaction, subsequently into oxidant gas outlet, tail gas after oxidant gas and electrochemical reaction is in pass-through state in oxidant gas flow field, distribution of the tail gas in oxidant gas flow field after oxidant gas and electrochemical reaction is uniform, consistent with flow regime, thus the generating efficiency on unit area is higher.
Description
Technical field
The present invention relates to field of fuel cell technology, and in particular to a kind of fuel cell bipolar plate structure.
Background technique
Proton Exchange Membrane Fuel Cells (PEMFC) relies on electrochemical reaction, will be stored in the change in fuel gas (such as hydrogen)
Can be directly translated into electric energy.Proton Exchange Membrane Fuel Cells power generation, there is room temperature to start, and fast, energy conversion efficiency is high, tail gas
Green non-pollution, it is safe the features such as, can be used for stationary electric power plant, mobile power station, aerogenerator, navigation generator, vehicle-mounted hair
Motor, field emergency power supply, portable power supplies etc..The end of the year 2014, Toyota Company have formally issued using total power proton exchange membrane
The passenger car Mirai of fuel cell, formally opens the gate of Proton Exchange Membrane Fuel Cells commercial applications.
Currently, fuel battery double plates mainly have graphite bi-polar plate, composite dual-electrode plates and metal double polar plates three categories.Fuel
Cell bipolar plate is one of the important component in Proton Exchange Membrane Fuel Cells, has and introduces and distribute material flow, collects
And it draws reaction end gas and generates water, the different flow fields of isolation and fluid, collection and the heat for conducting the generation of fuel cell reaction process
The functions such as the electric current of fuel cell electrochemistry generation are measured, collected and conduct, are that fuel cell maintains the important of good working state
Component.In order to realize various functions possessed by bipolar plates, bipolar plates are provided with multiple functions structure, mainly include fuel cell
Flow field (including fuel gas flow field and oxidant gas flow field), fuel gas import and export, oxidant gas import and export, cooling
The functional structures such as agent import and export and sealing structure.Position of each functional structure of bipolar plates in bipolar plates, direction, size,
The difference of structure type can all constitute the bipolar plates of different layouts, also can performance to the fuel cell finally assembled, suitable
It is impacted with factors such as ranges.Mass exchange in flow field in the flow regime and electrochemical reaction process of fluid ceases manner of breathing
It closes, raw materials required for the reaction can smoothly enter into, the tail gas for going on smoothly, generating of electrochemical reaction is smoothly discharged and generates water
Very big influence has been smoothly discharged.Since the electrochemistry that oxidant gas and fuel gas directly participate in fuel cell is anti-
It answers, therefore the uniformity that both gases flow in respective flow field is extremely important.In view of fuel gas (generally hydrogen)
Diffusion be better than oxidant gas (mostly oxygen or air), the flow field of same structure, oxidant gas compares fuel gas
Body is more difficult to reach the uniformity of flowing, consistency, therefore should pay the utmost attention to oxidant fluid for fuel battery double plates
The homogeneity question of flow regime.
A kind of fuel battery double plates developed by Sunrise Power Co., Ltd., pass through its Chinese invention patent application
" Fig. 2, Fig. 3, Fig. 4 " of file prospectus (application number 201611161409.7) shows that its layout is fuel cell in the middle part of being
Flow field, and fuel gas inlet and outlet, oxidant gas inlet and outlet, coolant inlet and outlet are arranged in the two of one opposite side in flow field
Side, the i.e. side in flow field just arrange fuel gas into (or go out) mouth, oxidant gas into (or going out) mouth, coolant into (or going out)
Mouthful.By a kind of bipolar plates (the Chinese invention patent application public affairs of fuel cell of Suzhou Shuo Jing power new energy Co., Ltd exploitation
Open specification, application number 201711337732.X), also use above-mentioned and Sunrise Power Co., Ltd.'s fuel cell bipolar
The similar layout type of plate, the i.e. side in flow field just arrange fuel gas into (or go out) mouth, oxidant gas into (or going out) mouth,
Coolant is into (or go out) mouth.Three the sum of width of such bipolar plates layout designs, fuel battery flow field side are approximately equal to
The width of fuel battery flow field, the restricted width that each inlet and outlet enter flow field will be less than fuel cell in the width of itself
Flow field width.In order to avoid fluid from it is each inlet and outlet flow into flow field when channel width mutation, will it is each inlet and outlet with
Changeover portion is set between flow field, makes variation of fluid during entering flow field tend to mitigate, but still inevitably draw
Play the difference of fluid flow state of the fluid in fuel battery flow field width direction.Oxidant gas with flow field is of different size makes
At oxidant gas flow field width direction fluid flow parameters gradient it is relatively larger, cause in oxidant gas flow field more
The working condition of fluid in more regions is the flow regime different from oxidant gas flowfield fluid main body.When being flowed in flow field
When the flow regime of phosphor bodies is in optimum range, fluid between inlet and outlet and flow field due to the presence of transition section structure, one
The flow regime of part flow field regions fluid is to cause a part of regional fluid different from the flow regime of bodies of fluid in flow field
Flow regime is in except optimum range, the non-uniform situation of this initiation fluid flow state oxidant gas flow field side more
To be serious, to make oxidant flow field because changeover portion causes the degree of fuel battery performance decline bigger.In addition, because introducing
Transition section structure, occupies flow field regions, reduces the region for participating in electrochemical reaction, also results in a degree of fuel
The reduction of battery specific power.
The fuel cell (Chinese invention patent, ZL201510770584.5) developed by Toyota Motor Corporation rep.,
Oxidant gas import and export is distributed across the two sides of one opposite side of fuel battery flow field, still, the oxygen of the fuel battery double plates
Oxidant gas import (and outlet) is formed in a row side by side by multiple rectangular apertures, or can be by oxidant gas import
(and outlet) regards a rectangular aperture as, and one and rectangle short side are arranged at a certain distance in the longitudinal direction of rectangle
Parallel lacing wire.Especially at the middle part of oxidant gas import, due to needing the tension stud slot milling position for pile,
The lacing wire in oxidant gas import herein accordingly adjusts position, and it is parallel no longer to hold the short side of opening with inlet and outlet, and
Drawing rib length increases, and occupies more oxidant gas import and export opening areas than other lacing wires.Due to the presence of lacing wire, meeting
Following adverse effect is generated to fuel cell: one, reducing the circulation area of oxidant gas import and export, accordingly reduces oxidant
The bearing capacity that gas import and export circulates to oxidant gas；Two, fuel battery flow field corresponds to each drawing of oxidant gas import
The fluid flow state of substantially one delta-shaped region in muscle downstream is different from fuel battery flow field bulk flow state.This
A little unfavorable factors can all adversely affect the performance of fuel cell.
Summary of the invention
The present invention relates to a kind of fuel cell bipolar plate structure, oxidant gas import and export and fuel battery flow field phase
On the length direction of adjacent side, the width design of oxidant gas import and export is the width more than or equal to fuel battery flow field.
Such bipolar plates layout, oxidant gas enter fuel cell oxidant gas flowfield from oxidant gas import, participate in electricity
Enter oxidant gas outlet after chemical reaction, in the whole process, the flowing of fluid is in pass-through state, and fluid is in fuel cell
The flow regime of oxidant gas flow field width direction is evenly distributed, and is conducive to improve fuel battery performance.
One aspect of the present invention provides a kind of fuel battery double plates layout structure, the bipolar plates be equipped with oxidant gas into
Mouth, oxidant gas outlet, coolant inlet, coolant outlet, fuel gas inlets, fuel gas outlet, fuel cell flow
Body flow field, it is characterised in that: the fuel cell fluids flow field is located at the middle part of bipolar plates；The oxidant gas import and oxygen
Oxidant gas outlet is set to the edge part on the both sides of a pair of of opposite side of bipolar plates；The coolant inlet, coolant outlet, combustion
Material gas feed, fuel gas outlet are respectively arranged at the edge part on the both sides of another pair opposite side of bipolar plates；The oxidant
The width of the opening for closing on fuel cell fluids flow field of gas feed and oxidant gas outlet is a；The fuel cell flow
Close on the oxidant gas import and the width of oxidant gas outlet edge in body flow field are b；A >=the b.
The coolant inlet, coolant outlet close on opening for fuel cell fluids flow field as a preferred technical solution,
The width of mouth is c；The a > c；It is preferred that the b > c.
The fuel gas inlets, fuel gas outlet close on fuel cell fluids flow field as a preferred technical solution,
Opening width be d；The a > d；It is preferred that d >=the c.
The coolant inlet and the coolant outlet point centered on the center of bipolar plates as a preferred technical solution,
It is centrosymmetric.
The fuel gas inlets, fuel gas outlet are centered on the center of bipolar plates as a preferred technical solution,
Point, is centrosymmetric.
The oxidant gas import and oxidant gas outlet are not set separation structure as a preferred technical solution,
Single port.
The opening shape of the oxidant gas import and oxidant gas outlet is square as a preferred technical solution,
Shape.Its four angles can be designed as fillet as needed.
The coolant inlet goes out with coolant outlet, fuel gas inlets, fuel gas as a preferred technical solution,
The shape of the opening of mouth is rectangle.Its four angles can be designed as fillet as needed.
The oxidant gas import, oxidant gas outlet, coolant inlet, cooling as a preferred technical solution,
Agent outlet, fuel gas inlets, fuel gas outlet, fuel cell fluids flow field are equipped with seal groove each independently.
The fuel cell fluids flow field includes oxidant gas side flow field as a preferred technical solution,.
The oxidant gas side flow field is linear or waveform as a preferred technical solution,.
The fuel cell fluids flow field further includes fuel gas side flow field as a preferred technical solution,；The fuel
Gas side flow field is serpentine flow, (i.e. flow field has and transfers at two, and runner changes originating party to turnover in turning point in Z-shaped flow field
The angle at place is preferably 90 degree), the mode that combines of Z-shaped flow field and waveform runner；The Z-shaped flow field has n item stream
Road, every runner are equipped with branch flow passage at turning, and branch's number is 2-4.It is, each in n runner is close
The turning point of fuel gas inlets branches into 2-4 runner, that is, becomes 2n-4n runner, then at close to outlet turning point by
2n-4n branch flow passage conjunction converges into n runner.
Another aspect of the present invention provides a fuel cell, including the bipolar plates with above structure.
Oxidant gas and fuel gas are the raw materials for participating in electrochemical reaction of fuel battery, and guarantee oxidant gas with
Fuel gas is distributed in respective even flow field, is very favorable to going on smoothly for electrochemical reaction of fuel battery.Due to combustion
The diffusion of material gas (generally hydrogen) is better than oxidant gas (mostly oxygen or air), for the stream of same structure
, oxidant gas is more difficult to reach uniformity, the consistency of flowing than fuel gas, therefore for fuel battery double plates and
Speech, needs to pay the utmost attention to the homogeneity question of oxidant fluid flow state.The oxidation of the one opposite side two sides in flow field will be arranged in
The width design of agent gas import and export is the width more than or equal to fuel battery flow field, then oxidant gas is from oxidant
Gas feed participates in electrochemical reaction by fuel cell oxidant gas flowfield and eventually arrives at the whole of oxidant gas outlet
The flow field structure of a process, the various point locations in fuel battery flow field width direction is consistent, fluid resistance be it is identical,
Therefore the flow regime of fluid is also identical in fuel cell oxidant gas flowfield.For participating in the another of electrochemical reaction
Kind raw material --- fuel gas, since its diffusion is better than oxidant gas, then in terms of fuel battery double plates layout,
Do not account for the two sides that fuel gas import and export is provided separately within to one opposite side of fuel battery flow field, and fuel gas into,
Exit width does not need to be more than or equal to flow field width yet；Fuel gas flow field is also not required to consider to be arranged straight-through flow field, but
To use serpentine flow path flow field, the flow Field Design that " Z " type runner adds changeover portion can also be used, this is for fuel gas in its stream
The uniformity of flow regime influences little in.Therefore, this fuel cell layout of the invention mentions fuel battery performance
Height is very favorable.
Oxidant gas import and export width is greater than fuel cell fluids flow field width, and oxidant gas import and export, which has more, to be come
The corresponding opening area of width can play the role of oxidant gas surge tank, buffer oxide agent gas to a certain extent
The fluctuation of the parameters such as pressure, flow during supply；In addition, oxidant gas import and export width is greater than fuel cell fluids stream
Field width degree, oxidant gas, which enters fuel battery flow field and the tail gas discharge of electrochemical reaction, can avoid oxidant gas
The edge effect of import and export width direction influences, and the flow regime of entire fuel battery flow field is made to more tend to uniformity；Most
Afterwards, it when fuel cell is in running order, if fluid flow fields are in vertical level, is flowed in simultaneous oxidation agent gas flowfield
Phosphor bodies flowing is oriented parallel to horizontal plane, then the oxidant gas outlet width lower than fuel cell fluids flow field exceeds stream
The corresponding Opening length of body flow field width, will form and be electrochemically generated water return flow line, and electrochemical reaction is made to generate the water level of water
Lower than the minimum point in fuel cell fluids flow field, this is avoided generating water to fuel battery flow field for generation water is discharged rapidly
It influences highly beneficial.This fuel battery double plates layout, oxidant gas enter fuel cell oxygen from oxidant gas import
Oxidant gas flow field participates in electrochemical reaction, subsequently into oxidant gas outlet, after oxidant gas and electrochemical reaction
Tail gas is in pass-through state in oxidant gas flow field, and the tail gas after oxidant gas and electrochemical reaction is in oxidant gas stream
Distribution in is uniform, consistent with flow regime, thus the generating efficiency on unit area is higher.
Detailed description of the invention
Fig. 1 fuel battery double plates schematic layout pattern of the present invention
Fig. 2 fuel battery double plates oxidant gas side of the present invention flow field schematic diagram (linear type flow field)
Fig. 3 fuel battery double plates fuel gas side of the present invention flow field schematic diagram (serpentine flow)
Fig. 4 fuel battery double plates fuel gas side of the present invention flow field schematic diagram (Z-shaped flow field)
Fig. 5 fuel battery double plates fuel gas side of the present invention flow field schematic diagram (Z-shaped flow field combines waveform runner)
Fig. 6 fuel battery double plates oxidant gas side of the present invention flow field schematic diagram (wave flow field)
Schematic diagram explanation, 1 oxidant gas import；2 oxidant gas outlets；3 seal grooves；4 coolant inlets；5 is cooling
Agent outlet；6 fuel gas inlets；7 fuel gas outlets；8 fuel cell fluids flow fields；9 oxidant gas side flow fields；10 fuel
Gas side serpentine flow；11 fuel gas Z-shaped flow fields；The import changeover portion in 12 Z-shaped flow fields；The outlet in 13 Z-shaped flow fields
Changeover portion.
Specific embodiment
Fuel battery double plates of the present invention layout includes fuel battery flow field (including fuel gas flow field and oxidant gas
Flow field), fuel gas, oxidant gas, the totality of the functional structures on fuel battery double plates such as coolant and sealing structure
Arrangement.The middle part of fuel battery double plates is fuel battery flow field, occupies fuel battery double plates most areas, fuel electricity
Pond flow field is rectangle, and oxidant gas flow field is in the side of bipolar plates, and fuel gas flow field is in the other side of bipolar plates, two
Size, shape and the position in flow field be it is identical, i.e., oxidant gas flow field and fuel gas flow field are in two flow fields
Between plane projection be overlapped；In the two sides of one opposite side of fuel cell, it is respectively arranged oxidant gas import and export, is aoxidized
The disengaging of agent gas, the mouth side adjacent with fuel battery flow field length direction on, the width of oxidant gas import and export be greater than or
Person is equal to the width in flow field；Fuel gas import and export and coolant import and export are arranged in another opposite side of fuel battery flow field
Two sides, wherein fuel gas import and export is located at one cornerwise both ends of fuel battery flow field, and coolant into and out of
Mouth is located at another cornerwise both ends of fuel battery flow field；The periphery of fuel battery flow field, oxidant gas inlet and outlet,
The periphery setting seal groove of fuel gas inlet and outlet, coolant inlet and outlet, for placing gasket seal, for variety classes, no
Between same parameter condition fluid and the sealing between external environment.The length direction on the oxidant gas side adjacent with flow field
On, the width design of oxidant gas is the width more than or equal to flow field.
Below in conjunction with specific embodiment, fuel battery double plates layout of the invention is further elaborated with.
Fuel battery double plates of the invention are laid out (referring to Fig.1), and outer dimension is 420 millimeters of length, width 150
Millimeter；Middle part is annular fuel cell fluid flow field, and flow field width is 80 millimeters, and the width in flow field is 350 millimeters；
Oxidant gas import 1, oxidant gas outlet 2 width be 85 millimeters, length be 20 millimeters, be arranged in
The two sides of fuel cell fluids flow field a pair of short edges, and arranged with the centering of fuel cell fluids flow field, with fuel cell fluids
10 millimeters of flow field interval；
Coolant inlet, 5 width of coolant outlet are 40 millimeters, and width is 10 millimeters, are arranged in fuel cell flow
The two sides of body flow field a pair of long side, and at the cornerwise both ends in another of fuel cell fluids flow field, and and fuel cell fluids
10 millimeters of flow field interval；
Fuel gas inlets 6,7 width of fuel gas outlet are 40 millimeters, and width is 10 millimeters, are arranged in fuel electricity
The two sides of pond fluid flow fields a pair of long side, and at the cornerwise both ends in one, fuel cell fluids flow field, and and fuel cell flow
10 millimeters of body flow field interval；
Fuel cell fluids flow field (flow field of edge is only drawn in Fig. 1, i.e., shown in two-dot chain line, other parts flow field province
Slightly be not drawn into), oxidant gas import 1, oxidant gas outlet 2, coolant inlet 4；Coolant outlet 5, fuel gas
Import 6,7 periphery of fuel gas outlet arrangement sealing 3, seal 3 millimeters of groove width.
Oxidant gas flow field 9 can use linear type flow field (as shown in Figure 2), and wave line style flow field can also be used (such as
Shown in Fig. 6)；
Serpentine flow 10 (as shown in Figure 3) can be used in fuel gas flow field, and " Z " type flow field 11 can also be used and import is arranged
Changeover portion 12 and outlet transition section 13 (as shown in Figure 4), so that the width (c) for importing and exporting fuel gas can be according to fuel electricity
The demand setting of pond work is smaller than flow field width (b), has both met the needs of fuel cell passes in and out flow field to fuel gas fluid,
The difficulty of processing of fuel battery double plates can also be reduced.The changeover portion 12 and outlet transition section 13 are located at the turnover of " Z " type
Place.Z-shaped flow field (closing on inlet part and part of being close to the exit) also can be used in fuel gas flow field and waveform runner is (intermediate
Part) mode (as shown in Figure 5) that combines.
Described above is a kind of fuel battery double plates of the invention layouts, and those skilled in the art in the invention should
It is appreciated that described is only specific embodiments of the present invention, it is not intended to limit the present invention.All spirit and original of the invention
Then in made any modification, dimensional structure scaling, equivalent replacement or improvement, should be included in the scope of the present invention it
It is interior.
Claims (10)
1. a kind of fuel cell bipolar plate structure, the bipolar plates are equipped with oxidant gas import (1), oxidant gas outlet
(2), coolant inlet (4), coolant outlet (5), fuel gas inlets (6), fuel gas outlet (7), fuel cell fluids
Flow field (8), it is characterised in that:
The fuel cell fluids flow field (8) is located at the middle part of bipolar plates；The oxidant gas import (1) and oxidant gas
Outlet (2) is set to the edge part on the both sides of a pair of of opposite side of bipolar plates；
The coolant inlet (4), coolant outlet (5), fuel gas inlets (6), fuel gas outlet (7) are respectively arranged at
The edge part on the both sides of another pair opposite side of bipolar plates；
The opening for closing on fuel cell fluids flow field (8) of the oxidant gas import (1) and oxidant gas outlet (2)
Width is a；
The fuel cell fluids flow field (8) closes on oxidant gas import (1) and oxidant gas outlet (2) edge
Width is b；
A >=the b.
2. the fuel cell bipolar plate structure according to claim, it is characterised in that: the coolant inlet (4), coolant
The width that outlet (5) closes on the opening in fuel cell fluids flow field (8) is c；The a > c；It is preferred that the b > c.
3. the fuel cell bipolar plate structure according to claim, it is characterised in that: the fuel gas inlets (6), fuel
The width that gas vent (7) closes on the opening in fuel cell fluids flow field (8) is d；The a > d；It is preferred that d >=the c.
4. the fuel cell bipolar plate structure according to claim, it is characterised in that:
The coolant inlet (4) and coolant outlet (5) point centered on the center of bipolar plates, are centrosymmetric.
The fuel gas inlets (6), fuel gas outlet (7) point centered on the center of bipolar plates, are centrosymmetric.
5. the fuel cell bipolar plate structure according to claim, it is characterised in that:
The oxidant gas import (1) and oxidant gas outlet (2) are the single port for not setting separation structure.
6. the fuel cell bipolar plate structure according to claim, it is characterised in that: the oxidant gas import (1) and oxygen
The opening shape that oxidant gas exports (2) is rectangle；The coolant inlet (4) and coolant outlet (5), fuel gas inlets
(6), the shape of the opening of fuel gas outlet (7) is rectangle.
7. the fuel cell bipolar plate structure according to claim, it is characterised in that: the oxidant gas import (1), oxygen
Oxidant gas export (2), coolant inlet (4), coolant outlet (5), fuel gas inlets (6), fuel gas outlet (7),
Fuel cell fluids flow field (8) is equipped with seal groove (3) each independently.
8. the fuel cell bipolar plate structure according to claim, it is characterised in that: fuel cell fluids flow field (8) packet
Include oxidant gas side flow field；The oxidant gas side flow field is linear or waveform.
9. the fuel cell bipolar plate structure according to claim, it is characterised in that:
Fuel cell fluids flow field (8) further includes fuel gas side flow field；The fuel gas side flow field is serpentine flow, " Z "
The mode that shape flow field, Z-shaped flow field and waveform runner combine；
The Z-shaped flow field has n runner, and every runner is equipped with branch flow passage at turning, and branch's number is 2-4.
10. fuel cell, the bipolar plates including structure described in claim 1-9 any one.
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| CN110993985A (en) * | 2019-12-14 | 2020-04-10 | 中国科学院大连化学物理研究所 | Flow channel structure of metal bipolar plate flow field of fuel cell |
| CN112002919A (en) * | 2020-08-03 | 2020-11-27 | 张家口市氢能科技有限公司 | Bipolar plate of fuel cell |
| WO2023000483A1 (en) * | 2021-07-20 | 2023-01-26 | 浙江天能氢能源科技有限公司 | Bipolar plate for proton exchange membrane fuel cell |
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| US20120295178A1 (en) * | 2011-05-16 | 2012-11-22 | Ford Motor Company | Flow field plate for reduced pressure drop in coolant |
| CN107591549A (en) * | 2012-08-14 | 2018-01-16 | 环能源公司 | Fuel cell flows raceway groove and flow field |
| CN108232229A (en) * | 2017-12-29 | 2018-06-29 | 中国科学院青岛生物能源与过程研究所 | A kind of high score matches consistency metal double polar plates flow field configuration |
| CN108899562A (en) * | 2018-07-09 | 2018-11-27 | 北京氢璞创能科技有限公司 | A kind of fuel battery double plates |
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| CN110459780A (en) * | 2019-07-25 | 2019-11-15 | 南方科技大学 | Fuel cell bipolar plate and fuel cell |
| CN110993985A (en) * | 2019-12-14 | 2020-04-10 | 中国科学院大连化学物理研究所 | Flow channel structure of metal bipolar plate flow field of fuel cell |
| CN112002919A (en) * | 2020-08-03 | 2020-11-27 | 张家口市氢能科技有限公司 | Bipolar plate of fuel cell |
| WO2023000483A1 (en) * | 2021-07-20 | 2023-01-26 | 浙江天能氢能源科技有限公司 | Bipolar plate for proton exchange membrane fuel cell |
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