CN108736017A - A kind of electrode plate for hydrogen fuel cell - Google Patents
A kind of electrode plate for hydrogen fuel cell Download PDFInfo
- Publication number
- CN108736017A CN108736017A CN201710261237.9A CN201710261237A CN108736017A CN 108736017 A CN108736017 A CN 108736017A CN 201710261237 A CN201710261237 A CN 201710261237A CN 108736017 A CN108736017 A CN 108736017A
- Authority
- CN
- China
- Prior art keywords
- electrode plate
- runner
- hydrogen
- plate
- catalyst layer
- 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.)
- Pending
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Classifications
-
- 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
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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
-
- 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
- H01M8/10—Fuel cells with solid electrolytes
-
- 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 invention discloses a kind of electrode plates for hydrogen fuel cell, the electrode plate includes the metallic plate for having two opposite sides, it is provided with runner in one side of metallic plate, the both sides of runner are provided with fluid intake assembly and fluid outlet element, are provided on the opposite flank of the first catalyst layer and metallic plate on a side of metallic plate and are provided with the second catalyst layer.The invention also discloses a kind of hydrogen fuel cells including such electrode plate.The electrode plate with such runner and catalyst layer of the present invention improves the utilization rate of hydrogen, and improves the energy conversion efficiency of hydrogen fuel cell in turn.
Description
Technical field
The present invention relates to a kind of electrode plate for hydrogen fuel cell and the hydrogen fuel cells comprising the electrode plate.
Background technology
The one kind of hydrogen fuel cell as Proton Exchange Membrane Fuel Cells, by the oxidation for being persistently happened at anode and cathode
Reduction reaction can convert chemical energy to electric energy.
Electrode plate is the important component of typical hydrogen fuel cell group, is both used as current collector plate, is also used for propping up
Support membrane electrode.Water conservancy diversion runner on electrode plate had not only been used for fuel hydrogen and oxidant enters the channel on anode and cathode surface, but also
As the channel for taking away the water generated in fuel cell operation.
Currently, being dedicated to preparation process of the material of modified electrode plate, structure and electrode plate etc. always to enhance hydrogen
The reaction of gas and oxygen, and then improve the energy conversion efficiency of hydrogen fuel cell.
Invention content
The technical problem to be solved in the present invention is to provide a kind of improved electrode plates for hydrogen fuel cell to improve hydrogen
The energy conversion efficiency of fuel cell.
It is an object of the present invention to provide a kind of electrode plates for hydrogen fuel cell.
It is a further object to provide a kind of hydrogen fuel cells including the electrode plate.
The electrode plate for hydrogen fuel cell of the present invention includes the metallic plate for having two opposite sides, metallic plate
It is provided with runner in one side, the both sides of runner are provided with fluid intake assembly and fluid outlet element, one of metallic plate
It is provided on side on the opposite flank of the first catalyst layer and metallic plate and is provided with the second catalyst layer.
Optionally, the first catalyst layer and the second catalyst layer include same or different catalyst.
Optionally, the anti-corrosion of high conductivity is provided on a side of the metallic plate and/or opposite flank of metallic plate
Coating.
Optionally, runner includes multiple sprues and multiple auxiliary flows, and auxiliary flow is for being connected to sprue.
Optionally, multiple sprues are spaced and parallel to each other.
Optionally, the shape of auxiliary flow is semicircle, rectangle or trapezoidal.
Optionally, fluid intake assembly is made of hydrogen fluid inlet, oxygen fluid inlet and cooling fluid inlet.
Optionally, fluid outlet element is made of the outlet of hydrogen fluid outlet, oxygen fluid outlet and cooling fluid.
Optionally, the inner wall of the electrode plate edge of runner the distance between nearest with the inner wall apart from electrode plate is 6 millis
Rice.
The hydrogen fuel cell of the present invention includes above-mentioned electrode plate.
The electrode plate of the present invention carries out catalytic action effectively by the catalyst layer being arranged on the two sides of metallic plate
The reaction rate that the hydrogen being passed through in hydrogen fuel cell and oxygen are mixed in runner is improved, to further improve hydrogen
The energy conversion efficiency of fuel cell.The electrode plate of the present invention extends runner due to the runner with above-mentioned specific structure
Entire length so that hydrogen and oxygen can fully react in runner, make so as to solve electrode plate in the prior art
The relatively low problem of hydrogen utilization ratio is obtained, and then solves the problems, such as to improve the energy conversion efficiency of hydrogen fuel cell.
Electrode plate provided by the invention can be used in a plurality of types of hydrogen fuel cells.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and constitutes the part of the present invention, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of electrode plate according to an embodiment of the invention；
Fig. 2 is the schematic longitudinal section figure of the runner of electrode plate according to an embodiment of the invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiments of the present invention
And technical scheme of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only this hair
Bright a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Structural schematic diagram below with reference to a kind of specific embodiment of the electrode plate of Fig. 1 present invention provided and Fig. 2 institutes
A kind of schematic longitudinal section figure of the runner of specific embodiment of the electrode plate of offer come illustrate the present invention electrode plate.The electricity
Pole plate includes the metallic plate 10 for having two opposite sides.Be provided on one side of metallic plate the first catalyst layer 20 with
And the second catalyst layer 30 is provided on the opposite flank of metallic plate.
The catalyst that first catalyst layer 20 and the second catalyst layer 30 include is selected from platinum grain, ruthenium by nano-scale
The group of particle or platinum-ruthenium alloying pellet composition.In platinum-ruthenium alloying pellet, the weight percentage ranges of platinum are in 20wt%-
Between 80wt%.In platinum-ruthenium alloying pellet, the weight ratio of platinum and ruthenium is 1:1-1:2, preferably 1:1.Platinum grain, ruthenium particle with
And the grain size of platinum-ruthenium alloying pellet is in 1-10nm.
With reference to figure 2 it is found that the first catalyst layer can be made not apply by mask technique or other technologies known in the art
It overlays in runner.However, the first catalyst layer can also be evenly coated in multiple sprues and multiple auxiliary flows, or
In portion of runner.In addition, the first catalyst layer and the second catalyst layer can also be respectively coated on metallic plate in a particular pattern
Two sides on.
In practical applications, into air stream enter runner hydrogen and oxygen it is identical or different on two sides of metallic plate
(preferably different) catalyst (such as the first catalyst layer comprising platinum grain and the second catalyst layer include ruthenium particle) catalysis make
Under, reaction rate can be accelerated, the hydrogen utilization ratio to solve the problems, such as electrode plate in the prior art is relatively low.
In addition, the anti-corrosion for being provided with high conductivity on a side of metallic plate and/or on the opposite flank of metallic plate applies
Layer (not shown), to enhance the corrosion resistance of metallic plate and enhance electric conductivity.
With reference to figure 1 it is found that being provided with runner in a side of metallic plate, the both sides of runner are provided with fluid intake assembly
And fluid outlet element.Fluid intake assembly includes oxygen intake 11, cooling fluid inlet 12 and hydrogen inlet 13.Fluid goes out
Mouthful component include with hydrogen inlet 13 be centrosymmetric arrangement hydrogen outlet 14, be centrosymmetric cloth with cooling fluid inlet 12
The oxygen outlet 16 of the cooling fluid outlet 15 and the arrangement that is centrosymmetric with oxygen intake 11 set.Those skilled in the art will
Meeting known oxygen entrance, cooling fluid inlet, hydrogen inlet and other arrangement forms of their corresponding outlets can also fit
For the present invention, as long as following function can be realized：Oxidant oxygen or air are introduced by oxygen intake, passes through hydrogen
Entrance introduces fuel hydrogen and by cooling fluid inlet and outlet for arranging the water cooling of steam form at the water of liquid
Go out runner.
Runner includes sprue 17 and auxiliary flow 18.Multiple sprues 17 are with certain spacing parallel spaced apart.Fig. 2 illustrates
Show that the longitudinal cross-section of sprue 17 is rectangle to property, however other longitudinal section shapes such as semicircle, trapezoidal, U-shaped also may be used
To be suitable for the present invention.
The shape of multiple auxiliary flows 18 is semicircle or rectangle or trapezoidal.The longitudinal section shape of auxiliary flow 18 and master
Runner 17 it is consistent.Auxiliary flow 18 is for being connected to sprue 17 so that each sprue can be formed by the connection of auxiliary flow
At least one communication path can smoothly reach hydrogen outlet so that after hydrogen is from hydrogen inlet into air stream enter runner by runner
Place, just can extend the entire length of runner in this way so that hydrogen and oxygen can fully react in runner, to further
Solve the problems, such as that electrode plate in the prior art so that hydrogen utilization ratio is relatively low.
In practical applications, the runner being made of sprue and auxiliary flow curvilinear can be arranged, and can also be in folding
Linear arrangement, the present invention will not limit this.The mode that sprue 17 and auxiliary flow 18 are interconnected can also have very much
Kind, for example, sprue 17 and auxiliary flow 18 may be used docking mode be interconnected, integrally formed side can also be used
Formula is interconnected, and the present invention does not also limit this.
Electrode plate provided in an embodiment of the present invention passes through many experiments, finally found that the inner wall of electrode plate and apart from the inner wall
When the distance between nearest edge of runner is 6mm, generated stress is minimum, can be as a kind of optimal scheme.
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.
Example the above is only the implementation of the present invention is not intended to restrict the invention.For those skilled in the art
For, the invention may be variously modified and varied.It is all within spirit and principles of the present invention made by any modification, equivalent
Replace, improve etc., it should be included in scope of the presently claimed invention.
Claims (10)
1. a kind of electrode plate for hydrogen fuel cell, which is characterized in that the electrode plate includes having two opposite sides
Metallic plate, be provided with runner in a side of the metallic plate, the both sides of the runner be provided with fluid intake assembly and
Fluid outlet element is provided with the opposite flank of the first catalyst layer and the metallic plate on one side of the metallic plate
On be provided with the second catalyst layer.
2. electrode plate as described in claim 1, which is characterized in that first catalyst layer and the second catalyst layer packet
Containing same or different catalyst.
3. electrode plate as described in claim 1, which is characterized in that on a side of the metallic plate and/or the metal
The corrosion-inhibiting coating of high conductivity is provided on the opposite flank of plate.
4. electrode plate as claimed in any one of claims 1-3, which is characterized in that the runner includes multiple sprues and more
A auxiliary flow, and the auxiliary flow is for being connected to the sprue.
5. electrode plate as claimed in claim 4, which is characterized in that multiple sprues are spaced and parallel to each other.
6. electrode plate as claimed in claim 4, which is characterized in that the shape of the auxiliary flow is semicircle, rectangle or ladder
Shape.
7. electrode plate as claimed in any one of claims 1-3, which is characterized in that the fluid intake assembly is by hydrogen fluid
Entrance, oxygen fluid inlet and cooling fluid inlet composition.
8. electrode plate as claimed in any one of claims 1-3, which is characterized in that the fluid outlet element is by hydrogen fluid
Outlet, oxygen fluid outlet and cooling fluid outlet composition.
9. electrode plate as claimed in any one of claims 1-3, which is characterized in that the inner wall of the electrode plate with apart from described
The distance between the edge of the nearest runner of the inner wall of electrode plate is 6 millimeters.
10. a kind of hydrogen fuel cell, including electrode plate as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710261237.9A CN108736017A (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 |
|---|---|---|---|
| CN201710261237.9A CN108736017A (en) | 2017-04-20 | 2017-04-20 | A kind of electrode plate for hydrogen fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108736017A true CN108736017A (en) | 2018-11-02 |
Family
ID=63933544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710261237.9A Pending CN108736017A (en) | 2017-04-20 | 2017-04-20 | A kind of electrode plate for hydrogen fuel cell |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1329969A (en) * | 2000-06-16 | 2002-01-09 | 德古萨加尔瓦诺技术股份公司 | Method for preparing one-sided platinum plated refractory metal plate and extended metal grid |
| CN101019257A (en) * | 2004-07-20 | 2007-08-15 | 通用汽车公司 | Enhanced stability bipolar plate |
| US20140356739A1 (en) * | 2012-11-06 | 2014-12-04 | Panasonic Corporation | Polymer electrolyte fuel cell |
| CN106099122A (en) * | 2016-07-12 | 2016-11-09 | 中国东方电气集团有限公司 | Electrode catalyst layer, its preparation method and application thereof |
| CN106252681A (en) * | 2015-06-10 | 2016-12-21 | 通用汽车环球科技运作有限责任公司 | On stainless steel substrate as BPP coating Graphene cold atmospheric pressure ald (ALD) |
| CN206774622U (en) * | 2017-04-20 | 2017-12-19 | 徐煜 | A kind of battery lead plate for hydrogen fuel cell |
-
2017
- 2017-04-20 CN CN201710261237.9A patent/CN108736017A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1329969A (en) * | 2000-06-16 | 2002-01-09 | 德古萨加尔瓦诺技术股份公司 | Method for preparing one-sided platinum plated refractory metal plate and extended metal grid |
| CN101019257A (en) * | 2004-07-20 | 2007-08-15 | 通用汽车公司 | Enhanced stability bipolar plate |
| US20140356739A1 (en) * | 2012-11-06 | 2014-12-04 | Panasonic Corporation | Polymer electrolyte fuel cell |
| CN106252681A (en) * | 2015-06-10 | 2016-12-21 | 通用汽车环球科技运作有限责任公司 | On stainless steel substrate as BPP coating Graphene cold atmospheric pressure ald (ALD) |
| CN106099122A (en) * | 2016-07-12 | 2016-11-09 | 中国东方电气集团有限公司 | Electrode catalyst layer, its preparation method and application thereof |
| CN206774622U (en) * | 2017-04-20 | 2017-12-19 | 徐煜 | A kind of battery lead plate for hydrogen fuel cell |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181102 |
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| RJ01 | Rejection of invention patent application after publication |