CN207977402U - A kind of hydrogen fuel cell bipolar plate flow field structure - Google Patents
A kind of hydrogen fuel cell bipolar plate flow field structure Download PDFInfo
- Publication number
- CN207977402U CN207977402U CN201820314759.0U CN201820314759U CN207977402U CN 207977402 U CN207977402 U CN 207977402U CN 201820314759 U CN201820314759 U CN 201820314759U CN 207977402 U CN207977402 U CN 207977402U
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- CN
- China
- Prior art keywords
- fuel cell
- flow field
- hydrogen fuel
- bipolar plate
- runner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model discloses a kind of hydrogen fuel cell bipolar plate flow field structures.The structure includes flow-field plate, and the back side is equipped with several strip runners, several protrusions for increasing reactant perpendicular to runner direction velocity component are equipped in the strip runner；Diffusion layer, fitting are arranged in the flow field back；And Catalytic Layer, fitting are arranged on diffusion layer；Using the above design, increase velocity component of the reactant perpendicular to runner direction, the reactant be conducive in runner is spread to diffusion layer, reduces concentration polarization.
Description
Technical field
The utility model is related to a kind of bipolar plate flow field structures, more specifically, it to be related to a kind of hydrogen fuel cell bipolar
Plate flow field structure.
Background technology
Concentration polarization is to influence one of the factor of fuel battery performance output.Hydrogen fuel cell bipolar plate runner structure and biography
Matter is closely related.The top/bottom of common parallel fluid channels and serpentine flow path is planar structure, and parallel with diffusion layer, therefore,
Reaction medium in runner relies primarily on concentration difference and diffuses to gas diffusion layers.It improves bipolar plate runner normal direction transmittability, reduce
Concentration polarization is the target of bipolar plate structure design.
Utility model content
The purpose of this utility model is to provide a kind of hydrogen fuel cell bipolar plate flow field structures.
To achieve the above object, the utility model provides following technical solution：
A kind of hydrogen fuel cell bipolar plate flow field structure, the hydrogen fuel cell bipolar plate flow field structure include：
Flow-field plate, the back side are equipped with several strip runners, are equipped in the strip runner several anti-for increasing
Answer object perpendicular to the protrusion of runner direction velocity component；
Diffusion layer, fitting are arranged in the flow field back；And
Catalytic Layer, fitting are arranged on diffusion layer.
In some embodiments, the strip runner is mutually parallel.
In some embodiments, the flow-field plate material is 316 stainless sheet steels or graphite.
In some embodiments, the convex cross section is trapezoidal, and trapezoidal upper bottom edge is more than bottom edge lengths.
The utility model tool has the advantage that：The utility model includes flow-field plate, and the back side is equipped with several strip streams
Road, the strip runner is interior to be equipped with several protrusions for increasing reactant perpendicular to runner direction velocity component；Diffusion layer,
It, which is bonded, is arranged in the flow field back；And Catalytic Layer, fitting are arranged on diffusion layer；Using the above design, increase
Add reactant perpendicular to the velocity component in runner direction, the reactant be conducive in runner is spread to diffusion layer, reduces concentration polarization
Change.
Description of the drawings
Fig. 1 is that the structure of flow-field plate in a kind of hydrogen fuel cell bipolar plate flow field structure of the utility model preferred embodiment is shown
It is intended to.
Fig. 2 is flow field-diffusion layer-Catalytic Layer position view.
Fig. 3 is a kind of sectional view of hydrogen fuel cell bipolar plate flow field structure of the utility model preferred embodiment.
Specific implementation mode
Shown in referring to Fig.1~Fig. 3, a kind of hydrogen fuel cell bipolar plate flow field structure of the present embodiment, the hydrogen fuel electricity
Pond bipolar plate flow field structure includes：
Flow-field plate, the back side are equipped with several strip runners, are equipped in the strip runner several anti-for increasing
Answer object perpendicular to the protrusion of runner direction velocity component.
It is additionally provided with below flow-field plate：
Diffusion layer, fitting are arranged in the flow field back；And
Catalytic Layer, fitting are arranged on diffusion layer.
In some embodiments, the strip runner is mutually parallel.
In some embodiments, the flow-field plate material is 316 stainless sheet steels or graphite.
In some embodiments, the convex cross section is trapezoidal, and trapezoidal upper bottom edge is more than bottom edge lengths.
Flow-field plate -1, diffusion layer -3, MEA-4 are placed from top to bottom
When pile is run, it is axially flat with runner might as well to set initial launch track 6 from entrance -5 into air stream enter runner for reaction gas
It goes, the reactant in MEA-4 mostlys come from concentration difference diffusion, when the reactant for having track 6 encounters the boss in runner, fortune
Row track becomes 7, is provided with the velocity component perpendicular to runner axial direction, is conducive to reactant and is spread to diffusion layer, and then reduces
Dense polarization.
In conclusion the utility model includes flow-field plate, the back side is equipped with several strip runners, the strip stream
Several protrusions for increasing reactant perpendicular to runner direction velocity component are equipped in road；Diffusion layer, fitting are arranged in institute
It states in the back of flow field；And Catalytic Layer, fitting are arranged on diffusion layer；Using the above design, increase reactant perpendicular to
The velocity component in runner direction, the reactant be conducive in runner are spread to diffusion layer, reduce concentration polarization.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (4)
1. a kind of hydrogen fuel cell bipolar plate flow field structure, which is characterized in that the hydrogen fuel cell bipolar plate flow field structure packet
It includes：
Flow-field plate, the back side are equipped with several strip runners, are equipped in the strip runner several for increasing reactant
Perpendicular to the protrusion of runner direction velocity component.
2. hydrogen fuel cell bipolar plate flow field structure according to claim 1, which is characterized in that the strip runner phase
It is mutually parallel.
3. hydrogen fuel cell bipolar plate flow field structure according to claim 2, which is characterized in that the flow-field plate material is
316 stainless sheet steels or graphite.
4. hydrogen fuel cell bipolar plate flow field structure according to claim 3, which is characterized in that the convex cross section is
It is trapezoidal, and trapezoidal upper bottom edge is more than bottom edge lengths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820314759.0U CN207977402U (en) | 2018-03-06 | 2018-03-06 | A kind of hydrogen fuel cell bipolar plate flow field structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820314759.0U CN207977402U (en) | 2018-03-06 | 2018-03-06 | A kind of hydrogen fuel cell bipolar plate flow field structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207977402U true CN207977402U (en) | 2018-10-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820314759.0U Expired - Fee Related CN207977402U (en) | 2018-03-06 | 2018-03-06 | A kind of hydrogen fuel cell bipolar plate flow field structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN207977402U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686995A (en) * | 2018-12-22 | 2019-04-26 | 一汽解放汽车有限公司 | A kind of interior bipolar plates with wedge-shaped protrusion of runner |
| 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 |
| CN111244497A (en) * | 2018-11-29 | 2020-06-05 | 中国科学院大连化学物理研究所 | Three-dimensional flow field structure of fuel cell |
| CN111446464A (en) * | 2020-05-22 | 2020-07-24 | 上海捷氢科技有限公司 | Bipolar plate of fuel cell |
-
2018
- 2018-03-06 CN CN201820314759.0U patent/CN207977402U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244497A (en) * | 2018-11-29 | 2020-06-05 | 中国科学院大连化学物理研究所 | Three-dimensional flow field structure of fuel cell |
| CN109686995A (en) * | 2018-12-22 | 2019-04-26 | 一汽解放汽车有限公司 | A kind of interior bipolar plates with wedge-shaped protrusion of runner |
| 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 |
| CN111446464A (en) * | 2020-05-22 | 2020-07-24 | 上海捷氢科技有限公司 | Bipolar plate of fuel cell |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181016 Termination date: 20210306 |
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| CF01 | Termination of patent right due to non-payment of annual fee |