CN210182487U - Novel fuel cell graphite bipolar plate structure - Google Patents
Novel fuel cell graphite bipolar plate structure Download PDFInfo
- Publication number
- CN210182487U CN210182487U CN201921070559.6U CN201921070559U CN210182487U CN 210182487 U CN210182487 U CN 210182487U CN 201921070559 U CN201921070559 U CN 201921070559U CN 210182487 U CN210182487 U CN 210182487U
- Authority
- CN
- China
- Prior art keywords
- electrode plate
- air
- plate
- electrode
- water
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model discloses a novel fuel cell graphite bipolar plate structure, include: the water tank comprises a first electrode plate and a second electrode plate, wherein a first water tank is arranged on one surface of the first electrode plate, which is opposite to the second electrode plate, two ends of the first water tank are respectively provided with a first water guide hole which penetrates through end faces on two sides of the first electrode plate, and the two first water guide holes are respectively communicated with two ends of the first water tank; the first plate electrode deviates from one side of the second plate electrode is provided with a first gas groove, two end faces of the first plate electrode are respectively provided with a first gas groove and a first water groove, two end faces of the second plate electrode are respectively provided with a second gas groove and a second water groove, the first plate electrode and the second plate electrode are of a double-faced runner structure, the thickness and the size of the first plate electrode and the second plate electrode can be basically consistent, and the structure of grooves are pressed on two faces, so that the structural rigidity of the first plate electrode and the second plate electrode is improved, the deformation is reduced, the processing and production process is convenient to optimize, and the production efficiency is improved.
Description
Technical Field
The utility model relates to a fuel cell technical field, concretely relates to novel fuel cell graphite bipolar plate structure.
Background
The bipolar plate is an important component of the proton exchange membrane fuel cell and plays a role in supporting the fuel cell and providing a reaction gas channel and a coolant channel. As for the conditions of use of the bipolar plate itself, the plate itself is required to have not only high electrical conductivity, corrosion resistance, gas permeation resistance, and the like, but also high mechanical strength, rigidity, and the like.
The material of proton exchange membrane fuel cell polar plate has graphite plate, metal sheet, composite sheet etc. and the structure composition scheme of current graphite bipolar plate includes: 1. a hydrogen plate, an oxygen plate and a water flow field plate; 2. a double-sided runner unipolar plate and a single-sided runner unipolar plate. And then combined together into a bipolar plate by means of bonding.
For the scheme of the hydrogen plate, the oxygen plate and the water flow field plate, the water flow field plate is made of porous materials, the flow resistance is large, the bipolar plate has a complex structure and a thicker total thickness, and the further improvement of the volume power ratio, the mass power ratio and the like of the fuel cell is restricted.
For the scheme of the double-sided flow channel unipolar plate and the single-sided flow channel unipolar plate, the single-sided flow channel unipolar plate is thin in thickness and low in structural rigidity, and particularly for the flexible graphite bipolar plate, the expanded graphite plate is very soft in the preparation process, the influence on the shaping of the structure is large, and the product can be processed by taking certain measures to meet the use requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technique not enough, provide a novel fuel cell graphite bipolar plate structure, solve among the prior art technical problem that the structural rigidity of the single face runner unipolar plate in the scheme of two-sided runner unipolar plate + single face runner unipolar plate is low.
In order to achieve the above technical purpose, the technical scheme of the utility model provides a novel fuel cell graphite bipolar plate structure, include: the water tank comprises a first electrode plate and a second electrode plate, wherein a first water tank is arranged on one surface of the first electrode plate, which is opposite to the second electrode plate, two ends of the first water tank are respectively provided with a first water guide hole which penetrates through end faces on two sides of the first electrode plate, and the two first water guide holes are respectively communicated with two ends of the first water tank; one surface of the first electrode plate, which is far away from the second electrode plate, is provided with a first air groove, two ends of the first air groove are respectively provided with a first air guide hole which penetrates through end faces of two sides of the first electrode plate, and the two first air guide holes are respectively communicated with two ends of the first air groove; the second electrode plate is connected with the opposite surface of the first electrode plate in a sealing manner, a second water tank is arranged on one surface of the second electrode plate opposite to the first electrode plate, the second water tank and the first water tank surround to form a cooling cavity, second water guide holes penetrating through the end surfaces of the two sides of the second electrode plate are arranged at the two ends of the second water tank, and the two second water guide holes are respectively communicated with the two ends of the second water tank; the one side that the second electrode board deviates from first electrode board is provided with second gas groove, the both ends in second gas groove all are provided with and run through the second air guide hole of second electrode board both sides terminal surface, and two the second air guide hole respectively with the both ends intercommunication in second gas groove.
Compared with the prior art, the beneficial effects of the utility model include: in this novel fuel cell graphite bipolar plate structure two terminal surfaces of first plate electrode are provided with first gas tank, first basin respectively, two terminal surfaces of second plate electrode are provided with second gas tank, second basin respectively, first plate electrode with the second plate electrode is the structure of two-sided runner, can guarantee first, second plate thickness size unanimous basically to the structure in two sides indent for the structural rigidity of first, second plate electrode improves, and the deflection reduces, and the optimization of the production technology of being convenient for processes reduces production processes, improves production efficiency.
Drawings
Fig. 1 is an explosion structure diagram of an embodiment of a first electrode plate and a second electrode plate in a novel graphite bipolar plate structure of a fuel cell provided by the present invention.
Fig. 2 is a schematic view of an assembly structure of an embodiment of the first electrode plate and the second electrode plate in the novel graphite bipolar plate structure of the fuel cell provided by the present invention.
Fig. 3 is a schematic view structure diagram of a first viewing angle of an embodiment of a first electrode plate in a graphite bipolar plate structure of a novel fuel cell provided by the present invention.
Fig. 4 is a schematic structural diagram of a second view angle of an embodiment of the first electrode plate in the novel graphite bipolar plate structure of the fuel cell provided by the present invention.
Fig. 5 is a schematic view of a first perspective structure of an embodiment of a second electrode plate in a graphite bipolar plate structure of a novel fuel cell provided by the present invention.
Fig. 6 is a second view structural diagram of an embodiment of a second electrode plate in a graphite bipolar plate structure of a novel fuel cell provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 6, the present embodiment provides a novel graphite bipolar plate structure for a fuel cell, which includes a first electrode plate 1 and a second electrode plate 2 arranged in a stacked manner.
One surface of the first electrode plate 1, which is opposite to the second electrode plate 2, is provided with a first water tank 1a, two ends of the first water tank 1a are respectively provided with a first water guide hole 1b which penetrates through end surfaces of two sides of the first electrode plate 1, and the two first water guide holes 1b are respectively communicated with two ends of the first water tank 1 a; a first air groove 1c is formed in one surface, away from the second electrode plate 2, of the first electrode plate 1, first air holes 1d penetrating through end surfaces of two sides of the first electrode plate 1 are formed in two ends of the first air groove 1c, and the two first air holes 1d are respectively communicated with two ends of the first air groove 1 c; the second electrode plate 2 is connected with the opposite surface of the first electrode plate 1 in a sealing manner, a second water tank 2a is arranged on one surface of the second electrode plate 2 opposite to the first electrode plate 1, the second water tank 2a and the first water tank 1a surround to form a cooling cavity, second water guide holes 2b penetrating through the end surfaces of two sides of the second electrode plate 2 are arranged at two ends of the second water tank 2a, and the two second water guide holes 2b are respectively communicated with two ends of the second water tank 2 a; a second air groove 2c is formed in one surface, away from the first electrode plate 1, of the second electrode plate 2, second air holes 2d penetrating through end surfaces of two sides of the second electrode plate 2 are formed in two ends of the second air groove 2c, and the two second air holes 2d are respectively communicated with two ends of the second air groove 2 c; in this novel fuel cell graphite double-pole plate structure two terminal surfaces of first plate electrode 1 are provided with first gas groove 1c, first basin 1a respectively, two terminal surfaces of second plate electrode 2 are provided with second gas groove 2c, second basin 2a respectively, first plate electrode 1 with second plate electrode 2 is the structure of two-sided runner, can guarantee first, second plate electrode thickness size unanimous basically to the structure in two sides indent for the structural rigidity of first, second plate electrode improves, and the deflection reduces, and the optimization of the processing production technology of being convenient for reduces production processes, improves production efficiency.
Preferably, each corner position of the outer edge of one surface of the first electrode plate 1, which is deviated from the second electrode plate 2, is provided with a first stepped groove 1e formed in a recessed manner, each corner position of the outer edge of one surface of the second electrode plate 2, which is deviated from the first electrode plate 1, is provided with a second stepped groove 2e formed in a recessed manner, and the first stepped groove 1e and the second stepped groove 2e can prevent point discharge between the electrode plates and battery failure.
Preferably, a plurality of first water flow channels are arranged in the first water tank 1a along the length direction of the first water tank, and the plurality of first water flow channels are formed by dividing a plurality of first strip-shaped bosses 1 f; a plurality of second water flow channels arranged along the length direction of the second water tank 2a are arranged in the second water tank 2a, and the second water flow channels are formed by separating a plurality of second strip-shaped bosses 2 f; the plurality of first water flow channels are arranged opposite to the plurality of second water flow channels in a one-to-one correspondence manner, a plurality of first air flow channels arranged along the length direction of the first air flow channels are arranged in the first air groove 1c, the plurality of first air flow channels are formed by dividing a plurality of third strip-shaped bosses 1g, a plurality of second air flow channels arranged along the length direction of the second air groove 2c are arranged in the second air groove, and the plurality of second air flow channels are formed by dividing a plurality of fourth strip-shaped bosses 2 g; in this embodiment, the first water flow channel, the second water flow channel, the first air flow channel and the second air flow channel are all linear flow channels, so that the pressure loss of the flow field can be obviously reduced.
Preferably, the two first air vents 1d are respectively disposed in two diagonal regions of the first electrode plate 1, the first electrode plate 1 is further provided with two third air vents 1h penetrating end faces at two sides thereof, the two third air vents 1h are respectively disposed in the other two diagonal regions of the first electrode plate 1, and the two third air vents 1h are correspondingly disposed opposite to and communicated with the two second air vents 2d one by one; the two second air vents 2d are respectively arranged in two diagonal areas of the second electrode plate 2, the second electrode plate is further provided with two fourth air vents 2h penetrating through end faces on two sides of the second electrode plate, the two fourth air vents 2h are respectively arranged in the other two diagonal areas of the second electrode plate 2, the two fourth air vents 2h are correspondingly arranged opposite to and communicated with the two first air vents 1d one by one, and the first air vent 1d, the first water guide hole 1b and the third air vent 1h are arranged on a first straight line along the width direction of the first electrode plate 1; another first air vent 1d, another first water guide hole 1b, and another third air vent 1h are arranged on a second straight line along the width direction of the first electrode plate 1, and the first straight line and the second straight line are symmetrically arranged with respect to the longitudinal axis of the first electrode plate 1, and one second air vent 2d, one second water guide hole 2b, and one fourth air vent are arranged on a third straight line along the width direction of the second electrode plate 2 along 2 h; the other second air guide hole 2b, the other second water guide hole 2d and the other fourth air guide hole 2h are arranged on a fourth straight line along the width direction of the second electrode plate 2, the third straight line and the fourth straight line are symmetrically arranged relative to the longitudinal axis of the second electrode plate 2, and the structure can ensure that the first electrode plate 1 and the second electrode plate 2 achieve better structural strength.
In addition, in this embodiment, the first electrode plate 1 and the second electrode plate 2 have substantially the same structure, so that the equipment cost is saved.
Preferably, a plurality of the first electrode plates 1 and a plurality of the second electrode plates 2 may be sequentially stacked to constitute a fuel cell stack; the first electrode plate 1 and the second electrode plate 2 are sealed and fixed by a bonding method.
In this embodiment, first plate electrode 1 with the flexible graphite polar plate that second plate electrode 2 is, first plate electrode 1 with second plate electrode 2 all adopts two-sided runner structure, behind processes such as infiltration, mould pressing, does not have obvious bending, the emergence of fold scheduling problem, within plate electrode edge warpage 1mm, the warpage deflection is obviously less than 3 ~ 5mm of single-sided runner polar plate, basically there is not deformation after bonding into the bipolar plate, can directly skip the flattening and get into process on next step, very big improvement production efficiency, reduced manufacturing cost. The fuel cell stack assembled by the novel bipolar plate is compared with a common bipolar plate stack, the working conditions and pressures of cooling water and reaction gas are consistent, and the power generation efficiency of the stack is consistent.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A novel fuel cell graphite bipolar plate structure is characterized by comprising: the water tank comprises a first electrode plate and a second electrode plate, wherein a first water tank is arranged on one surface of the first electrode plate, which is opposite to the second electrode plate, two ends of the first water tank are respectively provided with a first water guide hole which penetrates through end faces on two sides of the first electrode plate, and the two first water guide holes are respectively communicated with two ends of the first water tank; one surface of the first electrode plate, which is far away from the second electrode plate, is provided with a first air groove, two ends of the first air groove are respectively provided with a first air guide hole which penetrates through end faces of two sides of the first electrode plate, and the two first air guide holes are respectively communicated with two ends of the first air groove; the second electrode plate is connected with the opposite surface of the first electrode plate in a sealing manner, a second water tank is arranged on one surface of the second electrode plate opposite to the first electrode plate, the second water tank and the first water tank surround to form a cooling cavity, second water guide holes penetrating through the end surfaces of the two sides of the second electrode plate are arranged at the two ends of the second water tank, and the two second water guide holes are respectively communicated with the two ends of the second water tank; the one side that the second electrode board deviates from first electrode board is provided with second gas groove, the both ends in second gas groove all are provided with and run through the second air guide hole of second electrode board both sides terminal surface, and two the second air guide hole respectively with the both ends intercommunication in second gas groove.
2. The novel fuel cell graphite bipolar plate structure of claim 1, wherein each corner position of the outer edge of the face of said first electrode plate facing away from said second electrode plate is provided with a first stepped groove formed by a depression.
3. The novel fuel cell graphite bipolar plate structure of claim 1, wherein each corner position of the outer edge of the face of said second electrode plate facing away from said first electrode plate is provided with a second stepped groove formed by a depression.
4. The novel fuel cell graphite bipolar plate structure of claim 1, wherein said first water trough has a plurality of first water flow channels disposed along a length thereof; a plurality of second water channels arranged along the length direction of the second water tank are arranged in the second water tank; the first water flow channels are arranged opposite to the second water flow channels in a one-to-one correspondence mode.
5. The novel fuel cell graphite bipolar plate structure of claim 1, wherein a plurality of first gas flow channels are disposed within said first gas groove along the length thereof.
6. The novel fuel cell graphite bipolar plate structure of claim 1, wherein a plurality of second gas flow channels are disposed within said second gas groove along the length thereof.
7. The novel graphite bipolar plate structure for fuel cells as claimed in claim 1, wherein two first air holes are respectively disposed in two diagonal regions of the first electrode plate, two third air holes are further opened on the first electrode plate and penetrate through end faces of two sides of the first electrode plate, two third air holes are respectively disposed in the other two diagonal regions of the first electrode plate, and two third air holes are correspondingly disposed opposite to and communicated with the two second air holes; the two second air guide holes are respectively arranged in two diagonal areas of the second electrode plate, the second electrode plate is further provided with two fourth air guide holes penetrating through end faces on two sides of the second electrode plate, the two fourth air guide holes are respectively arranged in the other two diagonal areas of the second electrode plate, and the two fourth air guide holes are in one-to-one correspondence with the two first air guide holes and are oppositely arranged and communicated with the two first air guide holes.
8. The novel fuel cell graphite bipolar plate structure of claim 7, wherein one of said first air-guide holes, one of said first water-guide holes and one of said third air-guide holes are arranged on a first straight line along a width direction of said first electrode plate; the other first air guide hole, the other first water guide hole and the other third air guide hole are arranged on a second straight line along the width direction of the first electrode plate, and the first straight line and the second straight line are symmetrically arranged relative to the longitudinal axis of the first electrode plate.
9. The novel fuel cell graphite bipolar plate structure of claim 8, wherein one said second air-guide hole, one said second water-guide hole and one said fourth air-guide hole are arranged on a third straight line along the width direction of said second electrode plate; the other second air guide hole, the other second water guide hole and the other fourth air guide hole are arranged on a fourth straight line along the width direction of the second electrode plate, and the third straight line and the fourth straight line are symmetrically arranged relative to the longitudinal axis of the second electrode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921070559.6U CN210182487U (en) | 2019-07-09 | 2019-07-09 | Novel fuel cell graphite bipolar plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921070559.6U CN210182487U (en) | 2019-07-09 | 2019-07-09 | Novel fuel cell graphite bipolar plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210182487U true CN210182487U (en) | 2020-03-24 |
Family
ID=69840472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921070559.6U Active CN210182487U (en) | 2019-07-09 | 2019-07-09 | Novel fuel cell graphite bipolar plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210182487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323466A (en) * | 2019-07-09 | 2019-10-11 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of new fuel cell graphite bi-polar plate structure |
-
2019
- 2019-07-09 CN CN201921070559.6U patent/CN210182487U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323466A (en) * | 2019-07-09 | 2019-10-11 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of new fuel cell graphite bi-polar plate structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101295798B (en) | Fuel cell stack | |
| CN210443621U (en) | Metal matrix bipolar plate | |
| CN104157895B (en) | The light-duty pile of polymer dielectric film fuel cell and manufacture method thereof | |
| US20220271317A1 (en) | Solid Oxide Fuel Cell/Electrolytic Cell and Electric Stack Prepared Based on Additive Manufacturing | |
| CN101395751A (en) | Cell stack and fuel cell with the same | |
| CN112838232B (en) | Full-through-hole metal fiber sintered body fuel cell bipolar plate and fuel cell stack | |
| EP2492997A1 (en) | Bipolar plate for fuel cell | |
| CN210182487U (en) | Novel fuel cell graphite bipolar plate structure | |
| CN101359742B (en) | Bipolar plate for proton exchange membrane fuel cell | |
| JP6526703B2 (en) | Contact method and apparatus for a fuel cell or electrolyzer cell stack | |
| CN212303715U (en) | Bipolar plate of fuel cell and fuel cell | |
| CN111490262B (en) | Metal bipolar plate of fuel cell and fuel cell | |
| CN201402834Y (en) | Flat plate-type moderate temperature solid oxide fuel cell stack | |
| CN105470527A (en) | Negative plate for air-cooled proton exchange membrane fuel cell | |
| US20070154772A1 (en) | Plate structure for multi-slice fuel cell | |
| CN100356618C (en) | High-efficient fuel battery guide bipolar plates and producing method thereof | |
| CN104795573A (en) | Metal bipolar plate for fuel cell | |
| CN112803054B (en) | Electrochemical reaction device and manufacturing method thereof | |
| CN205645995U (en) | Polar plate and fuel cell for proton exchange membrane fuel cell | |
| JP2010086695A (en) | Fuel battery separator | |
| KR100546016B1 (en) | Current collector for fuel cell, manufacturing method thereof and fuel cell having same | |
| CN105428671A (en) | High-power-density PEMFC (proton exchange membrane fuel cell) pile | |
| KR101301824B1 (en) | Separator for Fuel Cell | |
| KR20170140839A (en) | Structure of fuel cell | |
| CN110323466A (en) | A kind of new fuel cell graphite bi-polar plate structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |