CN104868129A - Metal bipolar plate for proton exchange membrane fuel cell - Google Patents
Metal bipolar plate for proton exchange membrane fuel cell Download PDFInfo
- Publication number
- CN104868129A CN104868129A CN201510275486.4A CN201510275486A CN104868129A CN 104868129 A CN104868129 A CN 104868129A CN 201510275486 A CN201510275486 A CN 201510275486A CN 104868129 A CN104868129 A CN 104868129A
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- Prior art keywords
- unipolar plate
- negative electrode
- fuel cell
- exchange membrane
- proton exchange
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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
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
- H01M4/8626—Porous electrodes characterised by the form
- H01M4/8631—Bipolar electrodes
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a metal bipolar plate for a proton exchange membrane fuel cell. The metal bipolar plate comprises an anode unipolar plate and a cathode unipolar plate which are mutually matched, wherein a protrusion on one side of the anode unipolar plate is matched with a groove in one side of the cathode unipolar plate, and a gap through which a coolant can flow conveniently is arranged between the groove and the protrusion. The protrusion is matched with the groove, so that the height of the bipolar plate can be effectively reduced, further the size of the fuel cell is effectively reduced, and the gap is arranged between the protrusion and the groove, so that the situation that the coolant flows can be facilitated. The metal bipolar plate disclosed by the invention effectively reduces the height of the bipolar plate, further reduces the size of the fuel cell, and improves the volumetric specific power of the fuel cell.
Description
Technical field
The present invention relates to cell art, particularly relate 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.
Summary of the invention
The object of the present invention is to provide one can effectively reduce bipolar plates height, and then effectively reduce fuel cell volume, improve the metal double polar plates of fuel cell volume specific power.
For reaching this object, the present invention 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.
Beneficial effect of the present invention: the present invention includes 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 present invention 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 present invention 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
Technical scheme of the present invention 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 invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention 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 invention, and these modes all will fall within protection scope of the present invention.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275486.4A CN104868129A (en) | 2015-05-26 | 2015-05-26 | Metal bipolar plate for proton exchange membrane fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275486.4A CN104868129A (en) | 2015-05-26 | 2015-05-26 | Metal bipolar plate for proton exchange membrane fuel cell |
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| CN104868129A true CN104868129A (en) | 2015-08-26 |
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| CN201510275486.4A Pending CN104868129A (en) | 2015-05-26 | 2015-05-26 | Metal bipolar plate for proton exchange membrane fuel cell |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410237A (en) * | 2016-11-21 | 2017-02-15 | 清华大学 | Flow distribution apparatus and fuel cell system |
| CN109119654A (en) * | 2018-09-28 | 2019-01-01 | 武汉喜玛拉雅光电科技股份有限公司 | A kind of bipolar plates and fuel cell |
| CN109473693A (en) * | 2018-12-27 | 2019-03-15 | 弗尔赛（上海）能源科技有限公司 | A kind of fuel battery metal double polar plate |
| CN109643809A (en) * | 2018-03-16 | 2019-04-16 | 清华大学 | A kind of engagement type ultra-thin metal bipolar plate and its three-dimensional flow field |
| CN110391436A (en) * | 2019-08-07 | 2019-10-29 | 上海电气集团股份有限公司 | One metal double-plate for proton exchange film fuel cell |
| CN111092240A (en) * | 2019-07-31 | 2020-05-01 | 浙江中合天空科技股份有限公司 | Metal bipolar plate flow field system of proton exchange membrane fuel cell |
| WO2020134160A1 (en) * | 2018-12-29 | 2020-07-02 | 上海恒劲动力科技有限公司 | Fuel cell metal bipolar plate |
| CN113921845A (en) * | 2020-07-10 | 2022-01-11 | 未势能源科技有限公司 | Bipolar plate for fuel cell, fuel cell with bipolar plate and vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342333A (en) * | 1998-11-25 | 2002-03-27 | 瓦斯技术研究所 | Sheet metal bipolar plate design for polymer electrolyte membrane fuel cells |
| US20050064270A1 (en) * | 2003-09-24 | 2005-03-24 | Marianowski Leonard G. | Fuel cell bipolar separator plate |
| CN203760571U (en) * | 2014-02-18 | 2014-08-06 | 武汉理工大学 | Galvanic pile of proton exchange membrane fuel battery |
| CN204668393U (en) * | 2015-05-26 | 2015-09-23 | 昆山弗尔赛能源有限公司 | A kind of used in proton exchange membrane fuel cell metal double polar plates |
-
2015
- 2015-05-26 CN CN201510275486.4A patent/CN104868129A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342333A (en) * | 1998-11-25 | 2002-03-27 | 瓦斯技术研究所 | Sheet metal bipolar plate design for polymer electrolyte membrane fuel cells |
| US20050064270A1 (en) * | 2003-09-24 | 2005-03-24 | Marianowski Leonard G. | Fuel cell bipolar separator plate |
| CN203760571U (en) * | 2014-02-18 | 2014-08-06 | 武汉理工大学 | Galvanic pile of proton exchange membrane fuel battery |
| CN204668393U (en) * | 2015-05-26 | 2015-09-23 | 昆山弗尔赛能源有限公司 | A kind of used in proton exchange membrane fuel cell metal double polar plates |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410237A (en) * | 2016-11-21 | 2017-02-15 | 清华大学 | Flow distribution apparatus and fuel cell system |
| CN109643809A (en) * | 2018-03-16 | 2019-04-16 | 清华大学 | A kind of engagement type ultra-thin metal bipolar plate and its three-dimensional flow field |
| WO2019174028A1 (en) * | 2018-03-16 | 2019-09-19 | 清华大学 | Engagement-type ultra-thin metal bipolar plate and three-dimensional flow field thereof |
| CN109643809B (en) * | 2018-03-16 | 2022-04-01 | 清华大学 | Engaged ultrathin metal bipolar plate and three-dimensional flow field thereof |
| CN109119654A (en) * | 2018-09-28 | 2019-01-01 | 武汉喜玛拉雅光电科技股份有限公司 | A kind of bipolar plates and fuel cell |
| CN109473693A (en) * | 2018-12-27 | 2019-03-15 | 弗尔赛（上海）能源科技有限公司 | A kind of fuel battery metal double polar plate |
| WO2020134160A1 (en) * | 2018-12-29 | 2020-07-02 | 上海恒劲动力科技有限公司 | Fuel cell metal bipolar plate |
| US20210313592A1 (en) * | 2018-12-29 | 2021-10-07 | Shanghai Everpower Technologies Ltd. | Metallic bipolar plate for fuel cells |
| CN111092240A (en) * | 2019-07-31 | 2020-05-01 | 浙江中合天空科技股份有限公司 | Metal bipolar plate flow field system of proton exchange membrane fuel cell |
| CN110391436A (en) * | 2019-08-07 | 2019-10-29 | 上海电气集团股份有限公司 | One metal double-plate for proton exchange film fuel cell |
| CN113921845A (en) * | 2020-07-10 | 2022-01-11 | 未势能源科技有限公司 | Bipolar plate for fuel cell, fuel cell with bipolar plate and vehicle |
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Application publication date: 20150826 |
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