CN2418587Y - Two-Polar plate in grid flow-field distribution structure - Google Patents
Two-Polar plate in grid flow-field distribution structure Download PDFInfo
- Publication number
- CN2418587Y CN2418587Y CN00231362U CN00231362U CN2418587Y CN 2418587 Y CN2418587 Y CN 2418587Y CN 00231362 U CN00231362 U CN 00231362U CN 00231362 U CN00231362 U CN 00231362U CN 2418587 Y CN2418587 Y CN 2418587Y
- Authority
- CN
- China
- Prior art keywords
- field distribution
- distribution structure
- polar plate
- grid flow
- bipolar plates
- 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.)
- Expired - Fee Related
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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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- Fuel Cell (AREA)
Abstract
The utility model discloses a two-polar plate in a grid flow-field distribution structure, which adopts a grid flow-field distribution structure. The structure has unclogged airflow and uniform distribution, and is easy to realize the management of water balance. The electrical property of the utility model is obviously superior to a two-polar plate in a parallel concave groove type flow-field distribution structure.
Description
The utility model is a kind of bipolar plates of grid Flow Field Distribution structure, belongs to the Proton Exchange Membrane Fuel Cells technical field.
U.S. Pat in 1988-4769297 discloses a kind of bipolar plate structure, and its constructive method is a kind of parallel groove formula structure, and weak point is the air-flow skewness of this bipolar plates, easily stops up; The water that reaction generates easily gathers, and is difficult for discharging, and has stopped up passing through of air-flow, easily forms the reaction dead band, causes battery operation after a period of time, and spread of voltage sharply descends, and has had a strong impact on the performance of battery.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and the bipolar plates that provides a kind of grid flow field structure to distribute.
The purpose of this utility model can be achieved by following technical proposals: good and corrosion resistant square plate upper and lower surface is made concavo-convex square net respectively at electric conductivity, all around with concave surface with being more or less than concave surface.
It is unimpeded to the utlity model has air-flow, is evenly distributed; The water that reaction generates is easily discharged, and easily realizes the water balance management, and battery performance is better than the characteristics such as bipolar plates battery performance of parallel groove formula structure.
The utility model will be further described below in conjunction with drawings and Examples:
Figure of description is the front view and the vertical view of bipolar plates.
Concavo-convex grid-shaped distributes and is the Flow Field Distribution of bipolar plates in the middle of the Front view 1.
Vertical view 2 protrusions partly are bipolar plates and electrode contact portion, and the negative area between each projection is gas flow and draining runner.
Embodiment: the utility model and parallel groove formula structure bipolar plates be test under the following conditions respectively: hydrogen, oxygen pressure are 0.25 MPa, battery operated temperature is 80 ℃, the fogger temperature is 90 ℃, the battery performance of parallel groove formula structure bipolar plates is 0.6 volt～0.18 ampere/square centimeter, and the battery performance of grid structure bipolar plates is more than 0.6 volt～0.6 ampere/square centimeter.
Evidence, the bipolar plates electrical property of grid Flow Field Distribution structure obviously are better than parallel groove formula structure bipolar plates electrical property.
Claims (1)
- A kind of bipolar plates of grid Flow Field Distribution structure, good and corrosion resistant square plate constitutes by electric conductivity, it is characterized by: make concavo-convex square net respectively at the square plate upper and lower faces, all around with concave surface with being more or less than concave surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00231362U CN2418587Y (en) | 2000-04-03 | 2000-04-03 | Two-Polar plate in grid flow-field distribution structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00231362U CN2418587Y (en) | 2000-04-03 | 2000-04-03 | Two-Polar plate in grid flow-field distribution structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2418587Y true CN2418587Y (en) | 2001-02-07 |
Family
ID=33594272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00231362U Expired - Fee Related CN2418587Y (en) | 2000-04-03 | 2000-04-03 | Two-Polar plate in grid flow-field distribution structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2418587Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305158C (en) * | 2003-11-26 | 2007-03-14 | 大连新源动力股份有限公司 | Proton exchange film fuel cell flow field structure |
| CN100449836C (en) * | 2007-03-13 | 2009-01-07 | 北京科技大学 | Mixed gradual conversion field of proton exchange membrane fuel cell |
| CN107302099A (en) * | 2017-05-23 | 2017-10-27 | 同济大学 | A kind of film humidifier for fuel cell |
| CN111244469A (en) * | 2018-11-28 | 2020-06-05 | 中国科学院大连化学物理研究所 | Bipolar plate suitable for flow battery or galvanic pile and application |
-
2000
- 2000-04-03 CN CN00231362U patent/CN2418587Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305158C (en) * | 2003-11-26 | 2007-03-14 | 大连新源动力股份有限公司 | Proton exchange film fuel cell flow field structure |
| CN100449836C (en) * | 2007-03-13 | 2009-01-07 | 北京科技大学 | Mixed gradual conversion field of proton exchange membrane fuel cell |
| CN107302099A (en) * | 2017-05-23 | 2017-10-27 | 同济大学 | A kind of film humidifier for fuel cell |
| CN111244469A (en) * | 2018-11-28 | 2020-06-05 | 中国科学院大连化学物理研究所 | Bipolar plate suitable for flow battery or galvanic pile and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |