CN204668393U - A kind of used in proton exchange membrane fuel cell metal double polar plates - Google Patents
A kind of used in proton exchange membrane fuel cell metal double polar plates Download PDFInfo
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- CN204668393U CN204668393U CN201520346738.3U CN201520346738U CN204668393U CN 204668393 U CN204668393 U CN 204668393U CN 201520346738 U CN201520346738 U CN 201520346738U CN 204668393 U CN204668393 U CN 204668393U
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- unipolar plate
- negative electrode
- fuel cell
- exchange membrane
- proton exchange
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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
Abstract
The utility model discloses a kind of used in proton exchange membrane fuel cell metal double polar plates, comprise the anode unipolar plate and negative electrode unipolar plate that cooperatively interact, the projection of described anode unipolar plate side and the fit depressions of described negative electrode unipolar plate side, the groove after cooperation and being provided with between projection is convenient to the gap of cooling fluid circulation.Projection and fit depressions, can effectively reduce bipolar plates height, and then effectively reduce fuel cell volume, gap between projection and groove is arranged, the flowing of cooling fluid can be conducive to, the utility model effectively reduces bipolar plates height, and then effectively reduces fuel cell volume, improves fuel cell volume specific power.
Description
Technical field
The utility model relates to cell art, particularly relates to a kind of used in proton exchange membrane fuel cell metal double polar plates.
Background technology
Fuel cell is the device by electrocatalytic reaction, the chemical energy of Oxidizing and Reducing Agents being directly changed into electric energy, is a kind of efficient, safety, clean, new-generation technology flexibly.Proton Exchange Membrane Fuel Cells wherein because of its have that efficiency is high, energy density is large, reaction temperature is low, noiselessness, the remarkable advantage such as pollution-free and be with a wide range of applications in terrestrial power generation station, electric motor car and compact power etc.Fuel battery inside forms primarily of proton exchange membrane, electro chemical catalyst, diffusion layer and bipolar plates.When the fuel cell is operating, the following course of reaction of its inner generation: reacting gas spreads in diffusion layer, when reacting gas arrives Catalytic Layer, in Catalytic Layer, catalyzed dose adsorbs and electrocatalytic reaction occurs; The proton that anode reaction generates is by being delivered to cathode side in proton exchange membrane, and electronics arrives negative electrode through external circuit, with oxygen molecule reaction bonded Cheng Shui, releases heat simultaneously.Electrode reaction is:
Anode (negative pole): H2 → 2H++2e
Negative electrode (positive pole): 1/2O2+2H++2e → H2O
Cell reaction: H2+1/2O2 → H2O
Common metal double polar plates design is as patent: 201410051270.5,201410054586.X, 201010288866.9, the runner of anode unipolar plate and negative electrode unipolar plate is designed in mirror image, namely the groove of bipolar plates side and the groove of other side contact, the projection of bipolar plates side is left mutually with the projection of other side, middle formation passage flow cooling fluid, this kind of structural design, make the height of bipolar plates higher, and then make the volume of fuel cell comparatively large, thus reduce the volumetric specific power of fuel cell.
Utility model content
The purpose of this utility model is to provide one can effectively reduce bipolar plates height, and then effectively reduces fuel cell volume, improves the metal double polar plates of fuel cell volume specific power.
For reaching this object, the utility model by the following technical solutions:
A kind of used in proton exchange membrane fuel cell metal double polar plates, comprise the anode unipolar plate and negative electrode unipolar plate that cooperatively interact, the projection of described anode unipolar plate side and the fit depressions of described negative electrode unipolar plate side, the groove after cooperation and being provided with between projection is convenient to the gap of cooling fluid circulation.
Wherein, the cooling fluid flow field sealant layer be arranged between described anode unipolar plate and negative electrode unipolar plate is also comprised.
Wherein, anode unipolar plate sealant layer and the negative electrode unipolar plate sealant layer of the anode unipolar plate after being coated on assembling respectively and negative electrode unipolar plate opposite side is also comprised.
Wherein, described anode unipolar plate and negative electrode unipolar plate adopt stainless steel materials integrated punching to form, and the thickness of slab of described anode unipolar plate and negative electrode unipolar plate is all greater than 0.05mm is less than 0.3mm.
Wherein, described anode unipolar plate and negative electrode unipolar plate are respectively arranged with fuel inlet and fuel outlet, oxidant inlet and oxidant outlet, cooling liquid inlet and cooling liquid outlet and runner.
Wherein, the two ends of described anode unipolar plate and negative electrode unipolar plate are respectively arranged with fuel for making to enter, oxidant forms turbulent flow and is assigned to the sags and crests in runner equably, and making the longer-distance runner from porch also can be assigned to the guiding rib of enough fuel.
Wherein, the opposite side of described anode unipolar plate and negative electrode unipolar plate is respectively arranged with the Gold plated Layer improving electric conductivity.
Wherein, described gap is arranged between the bottom of described groove and the top of described projection.
The beneficial effects of the utility model: the utility model comprises the anode unipolar plate and negative electrode unipolar plate that cooperatively interact, the projection of described anode unipolar plate side and the fit depressions of described negative electrode unipolar plate side, the groove after cooperation and being provided with between projection is convenient to the gap of cooling fluid circulation.Projection and fit depressions, can effectively reduce bipolar plates height, and then effectively reduce fuel cell volume, gap between projection and groove is arranged, the flowing of cooling fluid can be conducive to, the utility model effectively reduces bipolar plates height, and then effectively reduces fuel cell volume, improves fuel cell volume specific power.
Accompanying drawing explanation
Fig. 1 is the profile of the utility model one proton exchanging film fuel battery.
Fig. 2 is the exploded view of metal double polar plates in Fig. 1.
Fig. 3 is the axonometric drawing of anode unipolar plate.
Fig. 4 is the axonometric drawing of negative electrode unipolar plate.
In figure: 1. back-end metal plate, 311. anode catalyst layers, 312. proton exchange membrane, 313. cathode catalyst layers, 4. anode unipolar plate, 42. guiding ribs, 43. sags and crests, 5. negative electrode unipolar plate, 51. gaps, 7. front end sheet metal, 8. unipolar plate sealant layer, 9. negative electrode unipolar plate sealant layer.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
As shown in Figures 1 to 4, a kind of used in proton exchange membrane fuel cell metal double polar plates, comprise the anode unipolar plate 4 and negative electrode unipolar plate 5 that cooperatively interact, the projection of described anode unipolar plate 4 side and the fit depressions of described negative electrode unipolar plate 5 side, groove after cooperation and being provided with between projection is convenient to the gap 51 of cooling fluid circulation, and described gap 51 is arranged between the bottom of described groove and the top of described projection.
Preferred further, also comprise the cooling fluid flow field sealant layer 10 be arranged between described anode unipolar plate 4 and negative electrode unipolar plate 5, be coated on anode unipolar plate sealant layer 8 and the negative electrode unipolar plate sealant layer 9 of the anode unipolar plate 4 after assembling and negative electrode unipolar plate 5 opposite side respectively.
Further preferred, described anode unipolar plate 4 and negative electrode unipolar plate 5 adopt stainless steel materials integrated punching to form, and the thickness of slab of described anode unipolar plate 4 and negative electrode unipolar plate 5 is greater than 0.1mm is less than 0.2mm.
Further preferred, described anode unipolar plate 4 and negative electrode unipolar plate 5 are respectively arranged with fuel inlet and fuel outlet, oxidant inlet and oxidant outlet, cooling liquid inlet and cooling liquid outlet and runner.Anode unipolar plate becomes in the same way but not mirror image with the runner design of negative electrode unipolar plate, by anode unipolar plate and negative electrode unipolar plate alignment pressing, use silicone adhesive, form bipolar plates, at the coated on both sides fluid sealant of bipolar plates, this kind of metal double polar plates is less than the bipolar plates height of mirror image runner superposition combination, and the volumetric specific power value of battery can be made larger.
Preferred further, the two ends of described anode unipolar plate 4 and negative electrode unipolar plate 5 are respectively arranged with fuel for making to enter, oxidant forms turbulent flow and is assigned to the sags and crests 43 in runner equably, and making the longer-distance runner from porch also can be assigned to the guiding rib 42 of enough fuel.Flow field in two pieces of unipolar plate is identical, in gateway, place is designed with sags and crests, fuel, oxidant in order to make to enter form turbulent flow, more uniformly be assigned to the runner in the middle part of unipolar plate, in gateway, place is also designed with guiding rib, make also can be assigned to enough fuel leaving the longer-distance runner in porch, the runner of mid portion is waveform.
In the centre of bipolar plates, there is gap at the superimposed place of runner, and for the cooling fluid that circulates, cooling fluid relies on fluid sealant to lead, and enters from cooling fluid entrance on the lower, passes through every root runner, flow to top, then discharge from the cooling liquid outlet of top from the bottom of runner.This kind of metal double polar plates is three enter three and go out structure, realizes two plates, three functions.
Preferred further, the opposite side of described anode unipolar plate 4 and negative electrode unipolar plate 5 is respectively arranged with the Gold plated Layer improving electric conductivity.
Preferred further, the top of the anode unipolar plate 4 of bipolar plates is disposed with anode catalyst layer 311, proton exchange membrane 312, cathode catalyst layer 313, negative electrode unipolar plate 5 and back-end metal plate 1,
The below of the negative electrode unipolar plate 5 of bipolar plates is disposed with cathode catalyst layer 313, proton exchange membrane 312, anode catalyst layer 311, anode unipolar plate 4 and front end sheet metal 7.
Proton Exchange Membrane Fuel Cells is formed according to this by said structure.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection range by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, and these modes all will fall within protection range of the present utility model.
Claims (8)
1. a used in proton exchange membrane fuel cell metal double polar plates, comprise the anode unipolar plate (4) and negative electrode unipolar plate (5) that cooperatively interact, it is characterized in that: the described projection of anode unipolar plate (4) side and the fit depressions of described negative electrode unipolar plate (5) side, the groove after cooperation and being provided with between projection is convenient to the gap (51) of cooling fluid circulation.
2. a kind of used in proton exchange membrane fuel cell metal double polar plates according to claim 1, is characterized in that: also comprise cooling fluid flow field sealant layer (10) be arranged between described anode unipolar plate (4) and negative electrode unipolar plate (5).
3. a kind of used in proton exchange membrane fuel cell metal double polar plates according to claim 1, is characterized in that: the anode unipolar plate sealant layer (8) and the negative electrode unipolar plate sealant layer (9) that also comprise the anode unipolar plate (4) after being coated on assembling respectively and negative electrode unipolar plate (5) opposite side.
4. a kind of used in proton exchange membrane fuel cell metal double polar plates according to claim 1, it is characterized in that: described anode unipolar plate (4) and negative electrode unipolar plate (5) adopt stainless steel materials integrated punching to form, and the thickness of slab of described anode unipolar plate (4) and negative electrode unipolar plate (5) is all greater than 0.05mm is less than 0.3mm.
5. a kind of used in proton exchange membrane fuel cell metal double polar plates according to claim 1, is characterized in that: described anode unipolar plate (4) and negative electrode unipolar plate (5) are respectively arranged with fuel inlet and fuel outlet, oxidant inlet and oxidant outlet, cooling liquid inlet and cooling liquid outlet and runner.
6. a kind of used in proton exchange membrane fuel cell metal double polar plates according to claim 5, it is characterized in that: the two ends of described anode unipolar plate (4) and negative electrode unipolar plate (5) are respectively arranged with fuel for making to enter, oxidant forms turbulent flow and is assigned to the sags and crests (43) in runner equably, and making the longer-distance runner from porch also can be assigned to the guiding rib (42) of enough fuel.
7. a kind of used in proton exchange membrane fuel cell metal double polar plates according to claim 1, is characterized in that: the opposite side of described anode unipolar plate (4) and negative electrode unipolar plate (5) is respectively arranged with the Gold plated Layer improving electric conductivity.
8. a kind of used in proton exchange membrane fuel cell metal double polar plates according to claim 1, is characterized in that: described gap (51) are arranged between the bottom of described groove and the top of described projection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520346738.3U CN204668393U (en) | 2015-05-26 | 2015-05-26 | A kind of used in proton exchange membrane fuel cell metal double polar plates |
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| CN201520346738.3U CN204668393U (en) | 2015-05-26 | 2015-05-26 | A kind of used in proton exchange membrane fuel cell metal double polar plates |
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| CN204668393U true CN204668393U (en) | 2015-09-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868129A (en) * | 2015-05-26 | 2015-08-26 | 昆山弗尔赛能源有限公司 | Metal bipolar plate for proton exchange membrane fuel cell |
| CN111029609A (en) * | 2018-10-10 | 2020-04-17 | 江苏清能新能源技术股份有限公司 | Hybrid bipolar plate for fuel cell |
-
2015
- 2015-05-26 CN CN201520346738.3U patent/CN204668393U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868129A (en) * | 2015-05-26 | 2015-08-26 | 昆山弗尔赛能源有限公司 | Metal bipolar plate for proton exchange membrane fuel cell |
| CN111029609A (en) * | 2018-10-10 | 2020-04-17 | 江苏清能新能源技术股份有限公司 | Hybrid bipolar plate for fuel cell |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: High tech Zone Mountain Song road Kunshan city Suzhou city Jiangsu province 215300 No. 66 Patentee after: The game of Suzhou energy science and technology Ltd. Address before: High tech Zone Mountain Song road Kunshan city Suzhou city Jiangsu province 215300 No. 66 Patentee before: KUNSHAN FUERSAI ENERGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: High tech Zone Yushan Wusong Road Kunshan city Suzhou town Jiangsu province No. 66 215300 Patentee after: SUZHOU FORESIGHT ENERGY TECHNOLOGY CO.,LTD. Address before: High tech Zone Mountain Song road Kunshan city Suzhou city Jiangsu province 215300 No. 66 Patentee before: The game of Suzhou energy science and technology Ltd. |