CN108736038A - A kind of electrode plate for hydrogen fuel cell - Google Patents
A kind of electrode plate for hydrogen fuel cell Download PDFInfo
- Publication number
- CN108736038A CN108736038A CN201710263527.7A CN201710263527A CN108736038A CN 108736038 A CN108736038 A CN 108736038A CN 201710263527 A CN201710263527 A CN 201710263527A CN 108736038 A CN108736038 A CN 108736038A
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- Prior art keywords
- electrode plate
- hydrogen
- runner
- disposed
- outlet
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/0263—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant having meandering or serpentine paths
-
- 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
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Fuel Cell (AREA)
Abstract
This application discloses a kind of electrode plate, for solving the problems, such as that existing electrode plate so that hydrogen utilization ratio is relatively low, including hydrogen inlet, hydrogen outlet, runner, wherein：The hydrogen inlet is disposed in the side of the electrode plate；The hydrogen outlet is disposed in the other side opposite with the hydrogen inlet in the electrode plate；The runner is disposed between the hydrogen inlet and the hydrogen outlet, and the runner is curvilinear or fold-line-shaped is arranged；The runner includes sprue and auxiliary flow, multiple sprues are according to predetermined interval, parallel to be disposed between the hydrogen inlet and the hydrogen outlet, the shape of multiple auxiliary flows is semicircle or rectangle or trapezoidal, and the auxiliary flow is for being connected to the sprue.Disclosed herein as well is a kind of hydrogen fuel cells.
Description
Technical field
This application involves field of fuel cell technology more particularly to a kind of electrode plates for hydrogen fuel cell.
Background technology
Under the overall background such as energy restriction, environmental pollution, fuel cell is high, low in the pollution of the environment etc. all due to its generating efficiency
More advantages, are gradually applied to the fields such as industry, housing, traffic, and fuel cell has extensive as basic or backup device
Application prospect.
The one kind of hydrogen fuel cell as fuel cell, due to the use of hydrogen as raw material, the product after the completion of generating electricity is only
There is water, without generating GHG carbon dioxide, does not have any impact to environment, gradually more paid close attention to.Existing skill
In art, hydrogen fuel cell is often laminated by multiple single battery units, as a proton exchanging film fuel battery,
Membrane electrode layer in each single battery unit needs a pair of conductive partition board, with support, afflux, separates oxidant and reducing agent,
And Oxidizing and Reducing Agents electrode surface in battery is guided to flow, this conductive separator plate is known as electrode plate.
However, existing electrode plate, as shown in Figure 1, truncated end face is used since it is used for the runner 1 of gas reaction,
Cause hydrogen with oxygen cannot fully react with regard to flowing out runner into after air stream enter runner so that hydrogen utilization ratio is relatively low.
Invention content
The embodiment of the present application provides a kind of electrode plate, and the runner 1 for solving to be used for gas reaction in the prior art uses
Truncated end face causes hydrogen into cannot carry out after air stream enter runner fully react with regard to flowing out runner with oxygen so that hydrogen utilization ratio
Relatively low problem.
The embodiment of the present application also provides a kind of hydrogen fuel cell, the runner for solving to be used for gas reaction in the prior art
1 uses truncated end face, causes hydrogen just to flow out runner into oxygen cannot fully react after air stream enter runner so that hydrogen is sharp
With the relatively low problem of rate.
The embodiment of the present application uses following technical proposals：
A kind of electrode plate, including hydrogen inlet, hydrogen outlet and runner, wherein：
The hydrogen inlet is disposed in the side of the electrode plate；
The hydrogen outlet is disposed in the other side opposite with the hydrogen inlet in the electrode plate；
The runner is disposed between the hydrogen inlet and the hydrogen outlet, and the runner is curvilinear or fold-line-shaped
Arrangement；
The runner includes sprue and auxiliary flow, and multiple sprues are parallel to be disposed in institute according to predetermined interval
It states between hydrogen inlet and the hydrogen outlet, the shape of multiple auxiliary flows is semicircle or rectangle or trapezoidal, described
Auxiliary flow is for being connected to the sprue.
A kind of hydrogen fuel cell, including electrode plate described above.
Above-mentioned at least one technical solution that the embodiment of the present application uses can reach following advantageous effect：
Electrode plate provided by the present application includes hydrogen inlet, hydrogen outlet and runner, and wherein hydrogen inlet is disposed in described
The side of electrode plate, hydrogen outlet are disposed in the other side opposite with hydrogen inlet in electrode plate, and runner is disposed in hydrogen inlet
Between hydrogen outlet, since runner is curvilinear or fold-line-shaped arrangement, runner includes sprue and auxiliary flow, multiple mainstreams
Road is parallel to be disposed between hydrogen inlet and hydrogen outlet according to predetermined interval, the shapes of multiple auxiliary flows be it is semicircle or
Rectangle is trapezoidal, and wherein auxiliary flow just can extend the entire length of runner for being connected to sprue in this way so that hydrogen and
Oxygen can fully react in runner, make hydrogen utilization ratio is lower to ask so as to solve electrode plate in the prior art
Topic.
Description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please do not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the flow passage structure schematic diagram of electrode plate in the prior art；
Fig. 2 is a kind of structural schematic diagram of electrode plate provided by the present application；
Fig. 3 is a kind of diagrammatic cross-section of the regional area I of electrode plate provided by the present application；
Fig. 4 is a kind of each component detailed dimensions schematic diagram of electrode plate provided by the present application.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, shall fall in the protection scope of this application.
Below in conjunction with attached drawing, the technical solution that each embodiment of the application provides is described in detail.
This application provides a kind of electrode plates, including hydrogen inlet, hydrogen outlet and runner, wherein hydrogen inlet is arranged
In the side of electrode plate, hydrogen outlet is disposed in the other side opposite with hydrogen inlet in electrode plate, and runner is disposed in hydrogen and enters
Between mouth and hydrogen outlet, runner is curvilinear or fold-line-shaped is arranged, and runner includes sprue and auxiliary flow, multiple mainstreams
Road is parallel to be disposed between hydrogen inlet and hydrogen outlet according to predetermined interval, the shapes of multiple auxiliary flows be it is semicircle or
Rectangle is trapezoidal, and auxiliary flow can extend the entire length of runner for being connected to sprue in this way, then when hydrogen is from hydrogen
When gas entrance is into air stream enter runner, it just can extend path of the hydrogen by runner, so that hydrogen and oxygen are in extended runner
It is adequately reacted, effectively improves the utilization rate of hydrogen.
It should be noted that the runner of electrode plate provided by the embodiments of the present application, can be curvilinear or fold-line-shaped row
Cloth, it will be appreciated by those skilled in the art that, in practical applications, may exist a certain distance, auxiliary between each sprue
Runner is for being connected to sprue, so that each sprue can form at least one communication path by the connection of auxiliary flow, from
And after making hydrogen from hydrogen inlet into air stream enter runner, it can smoothly be reached at hydrogen outlet by runner.
Based on the above-mentioned core idea that electrode plate provided by the present application has been briefly described, below by specific embodiment
The design of the application is described in detail.
Fig. 2 is referred to, is a kind of structural schematic diagram of specific implementation mode of electrode plate provided by the present application, including hydrogen
Entrance 21, be centrosymmetric hydrogen outlet 22, the runner 23 of position with hydrogen inlet 21, wherein runner 23 is disposed in hydrogen and enters
Between mouth 21 and hydrogen outlet 22, runner 23 includes sprue 24 and auxiliary flow 25 again, between multiple sprues 24 are according to presetting
Every, it is parallel be disposed between hydrogen inlet 21 and hydrogen outlet 22, the shapes of multiple auxiliary flows 25 be semicircle or rectangle or
Trapezoidal, auxiliary flow 25 is for being connected to sprue 24.
In practical applications, specific runner 23 curvilinear can be arranged, and can also be in that fold-line-shaped is arranged, the application is to this
It will not limit.And the interconnected mode of sprue 24 and auxiliary flow 25 of runner 23 can also there are many kinds of, such as it is main
The mode that docking may be used in runner 24 and auxiliary flow 25 is interconnected, and can also be carried out mutually using integrally formed mode
Connection, the application also do not limit this.
In practical application scene, to prevent electrode plate in being processed in forming process due to stress collection to runner
In, the problem of being easily deformed, electrode plate provided by the embodiments of the present application further includes multiple pillars 26, and multiple pillars 26 are disposed in stream
The top and bottom in road 23, as shown in Fig. 2, these pillars 26 are each other across specified interval.
Runner can be smoothly discharged in the chemical product water generated for ease of hydrogen into after being reacted with oxygen after air stream enter runner,
The structure of electrode plate provided by the embodiments of the present application is the area that the electrode plate includes hydrogen inlet 21 and hydrogen outlet 22, runner 23
The step structure that domain is low, surrounding is high, as shown in figure 3, for the diagrammatic cross-section of electrode plate regional area I, when being generated in runner
After water, can because gravity effect, from being flowed through in runner in electrode pad region 31 to electrode pad region 32, and eventually by hydrogen
Entrance 21 is discharged, and so as to prevent meeting residual water in runner 23, avoids remaining water that from being atomized so that runner dilatancy
Problem.
To prevent hydrogen into after air stream enter runner, can be reacted with oxygen, to generate the variation of gas pressure in runner,
And the problem of causing electrode plate to deform, electrode plate provided by the embodiments of the present application further include multiple salient points 27, multiple salient points are arranged
The region between region and hydrogen outlet 22 and runner 23 between hydrogen inlet 21 and runner 23.Multiple salient points 27 that
This is across specified interval.
In order to enable electrode plate can have high conductivity, and there is high rotproofness, prevent runner hydrogen and oxygen into
The problem of corroding when row chemical reaction, electrode plate surface provided by the embodiments of the present application, which is coated with one layer, has high conductivity and height
The coating of corrosion resistant characteristic.
Since electrode plate provided by the embodiments of the present application is and the electricity generating principle of hydrogen fuel cell in hydrogen fuel cell
It is the anode plate (cathode) that hydrogen is sent to hydrogen fuel cell, by the effect of catalyst (platinum), an electronics in hydrogen atom
It is separated, the hydrogen ion (proton) for losing electronics passes through the proton exchange membrane of hydrogen fuel cell, reaches fuel battery negative pole
Plate (anode), and the electronics isolated in hydrogen atom reaches hydrogen fuel cell cathode plate then through external circuit, in external circuit
Middle generation electric current is recombined with oxygen atom and hydrogen ion as water after electronics reaches cathode plate.Therefore the embodiment of the present application provides
Electrode plate further include oxygen intake 210 and the oxygen outlet being centrosymmetric with oxygen intake 210 212, due to hydrogen fuel electricity
The water generated after hydrogen and oxygen reaction in pond is often steam form, and the steam in runner to avoid electrode plate is excessively led
Cause runner deformation, thus electrode plate provided by the embodiments of the present application further include cooling liquid inlet 29 and with cooling liquid inlet 29
The cooling liquid outlet 211 being centrosymmetric, for runner to be discharged at the water of liquid in the water cooling of steam form.
Electrode plate provided by the embodiments of the present application passes through many experiments, finally found that the groove walls 27 and distance of electrode plate
When nearest the distance between the edge of runner of the groove walls 27 is 6mm, generated stress is minimum, can be used as a kind of optimal
Scheme.As shown in figure 4, for a kind of size signal of the optimal state of each component of electrode plate provided by the embodiments of the present application
Figure, a length of 220mm of the electrode plate, the width of electrode plate are 143mm, the width of a length of 126mm of flow passage area, flow passage area is
95mm, a length of 23mm of hydrogen inlet and hydrogen outlet, hydrogen inlet and hydrogen outlet width be 15mm, hydrogen inlet and hydrogen
The width of exit concave region is that the length and width at 29mm, oxygen intake and oxygen outlet is respectively 24mm and 13mm.
In actual scene application, in order to in electrode plate oxygen intake and oxygen outlet and cooling liquid inlet
The gas or liquid that are passed in and out with cooling liquid outlet, the hydrogen passed in and out with hydrogen inlet and hydrogen outlet are sealed, the application
The electrode plate that embodiment provides, oxygen intake and oxygen outlet and cooling liquid inlet and cooling liquid outlet are in hydrogen
Intermediate height, the low step structure in two sides, wherein oxygen intake and oxygen outlet and cooling are all made of on the electrode plate of circulation
It is respectively 32mm, 28mm and 24mm that the stair-stepping length of liquid inlet and cooling liquid outlet arranges from high to low, and oxygen enters
Mouth and oxygen outlet and the stair-stepping width of cooling liquid inlet and cooling liquid outlet arrange from high to low is respectively
21mm, 17mm and 13mm.
Electrode plate provided by the present application includes hydrogen inlet, hydrogen outlet and runner, and wherein hydrogen inlet is disposed in described
The side of electrode plate, hydrogen outlet are disposed in the other side opposite with hydrogen inlet in electrode plate, and runner is disposed in hydrogen inlet
Between hydrogen outlet, since runner is curvilinear or fold-line-shaped arrangement, runner includes sprue and auxiliary flow, multiple mainstreams
Road is parallel to be disposed between hydrogen inlet and hydrogen outlet according to predetermined interval, the shapes of multiple auxiliary flows be it is semicircle or
Rectangle is trapezoidal, and wherein auxiliary flow just can extend the entire length of runner for being connected to sprue in this way so that hydrogen and
Oxygen can fully react in runner, make hydrogen utilization ratio is lower to ask so as to solve electrode plate in the prior art
Topic.
It is a kind of electrode plate provided by the present application above, is based on the electrode plate, the embodiment of the present application also provides a kind of hydrogen combustion
Expect battery, including electrode plate as described above.
Wherein, as long as the runner on the electrode plate of the hydrogen fuel cell includes sprue and auxiliary flow, multiple sprues
According to predetermined interval, it is parallel be disposed between hydrogen inlet and hydrogen outlet, the shapes of multiple auxiliary flows is semicircle or square
Shape is trapezoidal, and auxiliary flow can be used in being connected to sprue, and electrode plate includes multiple pillars and multiple salient points and electrode plate
The step structure that region including hydrogen inlet, hydrogen outlet, multiple sprues and multiple auxiliary flows is low, surrounding is high,
It should be within the protection domain of the application.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Including so that process, method, commodity or equipment including a series of elements include not only those elements, but also wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including element
There is also other identical elements in process, method, commodity or equipment.
It these are only embodiments herein, be not intended to limit this application.To those skilled in the art,
The application can have various modifications and variations.It is all within spirit herein and principle made by any modification, equivalent replacement,
Improve etc., it should be included within the scope of claims hereof.
Claims (9)
1. a kind of electrode plate, which is characterized in that including hydrogen inlet, hydrogen outlet and runner, wherein：
The hydrogen inlet is disposed in the side of the electrode plate；
The hydrogen outlet is disposed in the other side opposite with the hydrogen inlet in the electrode plate；
The runner is disposed between the hydrogen inlet and the hydrogen outlet, and the runner is curvilinear or fold-line-shaped is arranged
Cloth；
The runner includes sprue and auxiliary flow, multiple sprues according to predetermined interval, parallel be disposed in the hydrogen
Between gas entrance and the hydrogen outlet, the shape of multiple auxiliary flows is semicircle or rectangle or trapezoidal, the auxiliary
Runner is for being connected to the sprue.
2. electrode plate as described in claim 1, which is characterized in that the electrode plate further includes：
Multiple pillars, multiple pillars are disposed in the top and bottom surface side of the runner.
3. electrode plate as claimed in claim 2, which is characterized in that multiple pillars are each other across specified interval.
4. electrode plate as described in claim 1, which is characterized in that the electrode plate includes the hydrogen inlet, the hydrogen
Outlet, the step structure that the region of multiple sprues and multiple auxiliary flows is low, surrounding is high.
5. electrode plate as described in claim 1, which is characterized in that the electrode plate further includes：
Multiple salient points, multiple salient points be disposed between the hydrogen inlet and the runner and the hydrogen outlet with
The surface side in the region between the runner.
6. electrode plate as claimed in claim 5, which is characterized in that multiple salient points are each other across specified interval.
7. electrode plate as described in claim 1, which is characterized in that the electrode plate surface, which is coated with one layer, has high conductivity
With the coating of high corrosion resistant characteristic.
8. electrode plate as described in claim 1, which is characterized in that the groove walls of the electrode plate, with apart from the electrode plate
The distance between the edge of the nearest runner of groove walls be 6 millimeters.
9. a kind of hydrogen fuel cell, which is characterized in that including：
Electrode plate as described in claim 1~8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710263527.7A CN108736038A (en) | 2017-04-20 | 2017-04-20 | A kind of electrode plate for hydrogen fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710263527.7A CN108736038A (en) | 2017-04-20 | 2017-04-20 | A kind of electrode plate for hydrogen fuel cell |
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| Publication Number | Publication Date |
|---|---|
| CN108736038A true CN108736038A (en) | 2018-11-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710263527.7A Pending CN108736038A (en) | 2017-04-20 | 2017-04-20 | A kind of electrode plate for hydrogen fuel cell |
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| CN1787261A (en) * | 2004-12-10 | 2006-06-14 | 中国科学院大连化学物理研究所 | Impacted metal double polar plate structure and preparation method thereof |
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| US20140356739A1 (en) * | 2012-11-06 | 2014-12-04 | Panasonic Corporation | Polymer electrolyte fuel cell |
| CN104953140A (en) * | 2015-04-30 | 2015-09-30 | 南京航空航天大学 | Fuel battery flow field plate |
| CN105074982A (en) * | 2012-12-27 | 2015-11-18 | 智慧能量有限公司 | Fluid flow plate for a fuel cell |
| CN206697553U (en) * | 2017-04-20 | 2017-12-01 | 徐煜 | A kind of battery lead plate and the hydrogen fuel cell with battery lead plate |
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2017
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1787261A (en) * | 2004-12-10 | 2006-06-14 | 中国科学院大连化学物理研究所 | Impacted metal double polar plate structure and preparation method thereof |
| CN2893939Y (en) * | 2006-04-12 | 2007-04-25 | 中国科学院大连化学物理研究所 | Proton exchange film fuel battery flow field structure |
| CN101068044A (en) * | 2006-05-03 | 2007-11-07 | 三星Sdi株式会社 | Separator for fuel cell |
| US20100047650A1 (en) * | 2006-09-29 | 2010-02-25 | Honda Motor Co., Ltd. | Separator for fuel cell, single cell unit for fuel cell, short stack unit for fuel cell, and production methods of separator for fuel cell and cell unit (single cell unit or short stack unit) for fuel cell |
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| CN105074982A (en) * | 2012-12-27 | 2015-11-18 | 智慧能量有限公司 | Fluid flow plate for a fuel cell |
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| CN206697553U (en) * | 2017-04-20 | 2017-12-01 | 徐煜 | A kind of battery lead plate and the hydrogen fuel cell with battery lead plate |
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