CN205645995U - Polar plate and fuel cell for proton exchange membrane fuel cell - Google Patents
Polar plate and fuel cell for proton exchange membrane fuel cell Download PDFInfo
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- CN205645995U CN205645995U CN201620507559.8U CN201620507559U CN205645995U CN 205645995 U CN205645995 U CN 205645995U CN 201620507559 U CN201620507559 U CN 201620507559U CN 205645995 U CN205645995 U CN 205645995U
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- fuel cell
- plate
- exchange membrane
- proton exchange
- matsurface
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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
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Abstract
The utility model discloses a polar plate for the proton exchange membrane fuel cell, including cutting apart the board, it has at least a side to be the mat surface to cut apart the board, the mat surface has unevenness's surface, and be located the graphite layer of airflow channel one side of proton exchange membrane fuel cell, the graphite layer set up in on cutting apart a mat surface of board, and with it hardens to cut apart close as an organic whole. The fuel cell who has this polar plate is disclosed simultaneously. The utility model discloses intensity, the electricity conductive and heat conductive performance of polar plate can be improved, holistic weight is alleviateed, increase of service life, the energy transformation ratio of battery is also improved to the while.
Description
Technical field
This utility model relates to technical field of new energies, the pole plate used in specially one proton exchanging film fuel battery, also relates to the fuel cell with this pole plate.
Background technology
At present, fuel cell TRT efficient as one, eco-friendly, at aspects such as base station power, middle-size and small-size power station, electric motor car, stand-by power supply, portable power supplies, have broad application prospects.Its principle of fuel cell is a kind of electrochemical appliance, and its composition is identical with general battery.Monomer whose battery is made up of positive and negative two electrodes (negative pole i.e. fuel electrode and positive pole i.e. oxidant electrode) and electrolyte.Except for the difference that the active substance of general battery is stored in inside battery, therefore, limits battery capacity.And the positive and negative electrode of fuel cell itself does not comprise active substance, a simply catalytic converter element.Therefore fuel cell is the energy transfer machine that genuine chemical energy is converted into electric energy.Time battery operated, fuel and oxidant, by being externally supplied, react.As long as reactant continually enters in principle, product is constantly got rid of, and fuel cell just can generate electricity continuously.Fuel cell can be divided into Proton Exchange Membrane Fuel Cells, DMFC, alkaline fuel cell, SOFC, fuse salt fuel cell, microbiological fuel cell, biological fuel cell etc..
Proton Exchange Membrane Fuel Cells is then very important one.Proton Exchange Membrane Fuel Cells is mainly made up of end plate, collector plate, bipolar plates, membrane electrode etc..Bipolar plates is the holder part of fuel cell, acts primarily as support, distribution directing gas flow separation gas and the effect of afflux conduction, and the material doing bipolar plates at present mainly has two big classes: a class is the bipolar plates that graphite does, and a class is metal double polar plates.There is due to metal double polar plates the advantages such as light weight, sheet material processing thin, easy and large-scale production, be increasingly used for fuel cell industry.The processing technique of metal double polar plates is different from the processing technique of traditional graphite bi-polar plate, and metal double polar plates is mainly based on plate stamping, so the design of the gas flowfield of fuel cell is required higher by metal double polar plates.
Number of patent application is the Chinese patent of 00236169.8, disclose for bipolarity plate for inlaid structure of proton exchanging membrane fuel cells, common graphite is made hydrogen flow field plate and oxygen flow field plate is mounted in the fragmenting plate top and bottom groove cavity that metal material is made respectively, constitute mosaic texture bipolar plates.But the defect of this structure is: graphite cake is difficult to be tightly combined with metal fragmenting plate, electric conductivity is caused to be greatly affected, the final energy transformation ratio affecting whole set of cells；Meanwhile, described graphite cake easily produces loosening with the rigid contact of metal fragmenting plate, and, integral battery door weight is bigger.
Therefore, it is highly desirable to design a kind of used in proton exchange membrane fuel cell pole plate and fuel cell.
Utility model content
This utility model is solved the technical problem that to be to provide a kind of used in proton exchange membrane fuel cell pole plate and fuel cell, thus solves the problem in above-mentioned background technology.
This utility model is solved the technical problem that and is realized by the following technical solutions:
A kind of used in proton exchange membrane fuel cell pole plate, including
Fragmenting plate, described fragmenting plate at least one side is matsurface, and described matsurface has rough surface；
And it being positioned at the graphite linings of the gas channel side of Proton Exchange Membrane Fuel Cells, described graphite linings is arranged on a matsurface of described fragmenting plate, and is combined as a whole with described fragmenting plate.
In this utility model, as the preferred technical scheme of one, the carbon fiber reinforced aluminum matrix composite plate that described fragmenting plate uses thickness to be 0.3-0.6mm.This thickness is to draw through the practice that inventor is long-term, guaranteeing that total quality is light, on the basis of good conductivity, achieves the raising of intensity to greatest extent.
In this utility model, as the preferred technical scheme of one, it is matsurface that described fragmenting plate is provided with the one side of described graphite linings.
In this utility model, as the preferred technical scheme of one, lobe that section rectangular on described matsurface, is distributed.
In this utility model, as the preferred technical scheme of one, lobe that section curved on described matsurface, is distributed.
In this utility model, as the preferred technical scheme of one, the lobe of needle prick shape on described matsurface, is distributed.
When being provided with the lobe of needle prick shape on a matsurface of fragmenting plate, the lobe of described needle prick shape is protruded from another side of described fragmenting plate when punching press, so that another side of fragmenting plate also becomes matsurface so that combine tightr between graphite linings and fragmenting plate.
Fuel cell, including two pieces of pole plates and the membrane electrode assembly that is between two pieces of described pole plates,
Described pole plate uses structure as above, it may be assumed that described pole plate includes
Fragmenting plate, described fragmenting plate at least one side is matsurface, and described matsurface has rough surface；
And it being positioned at the graphite linings of the gas channel side of Proton Exchange Membrane Fuel Cells, described graphite linings is arranged on a matsurface of described fragmenting plate, and is combined as a whole with described fragmenting plate；
The fragmenting plate one of described pole plate is facing to described membrane electrode assembly.
In this utility model, as the preferred technical scheme of one, the edge of described pole plate utilizes frame to be fixed.
Owing to have employed above technical scheme, this utility model has the advantages that
The used in proton exchange membrane fuel cell pole plate that utility model provides, including fragmenting plate and the graphite linings of the gas channel side being positioned at Proton Exchange Membrane Fuel Cells, described fragmenting plate at least one side is matsurface, and described matsurface has rough surface；Described graphite linings scratches on a matsurface of described fragmenting plate, and is combined as a whole with described fragmenting plate punching press.Based on this structure, this utility model combines fragmenting plate strength advantage, and wherein, fragmenting plate uses carbon fiber reinforced aluminum matrix composite, carbon fiber reinforced aluminum matrix composite (carbon fiber reinforced Al-ma-trix contpnsite；Graphite fiber reinforced Al-matrix composite) it is with aluminum or aluminum alloy as matrix, with low-density, high intensity, the carbon fiber reinforced aluminum matrix composite of high-modulus.Fiber alignment distribution can select to design one-dimensional, two-dimentional or distributed in three dimensions according to component performance feature.The performance of carbon fiber reinforced aluminum matrix composite depends on the kind of fiber, content, distribution, the composition of aluminum matrix alloy and preparation method.This material has the excellent combination properties such as specific strength is high, specific modulus is high, heat-conductivity conducting is good, high temperature resistant, wear-resisting, thermal coefficient of expansion is little.The performance of fibre reinforced aluminum can require to be obtained by the content of optimum organization fiber, distribution according to design performance.So, it is considerably improved the intensity of battery lead plate electrical and thermal conductivity performance and entirety, and corrosion-resistant, and service life is greatly prolonged, light weight, significantly reduces the overall weight of pile.
In this utility model, a matsurface of described fragmenting plate is provided with the lobe of needle prick shape.Based on this structure, the matsurface of fragmenting plate improves contact area to greatest extent, simultaneously, the lobe that there is needle prick shape more can increase the adhesive force between graphite linings and fragmenting plate, guarantee that both are tightly combined, conductive effect is more preferable, also be beneficial to gas molecule in fuel cell pass through, concurrent biochemical reaction, thus graphite linings achieves more excellent conduction in this structure, it is more conducive to hydrogen transfer of electronics when catalysis issues biochemical reaction, the resistance reduced to greatest extent, decreases the loss of energy.
In sum, this utility model can improve the intensity of pole plate, electrical and thermal conductivity performance, alleviates the weight of entirety, increases the service life, and also improves the energy transformation ratio of battery simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment one；
Fig. 2 is the structural representation of this utility model embodiment two；
Fig. 3 is the structural representation of this utility model embodiment three；
Fig. 4 is the structural representation of this utility model fuel cell；
Fig. 5 is the structural representation of this utility model frame.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with specific embodiment, this utility model is expanded on further.
Embodiment one
See Fig. 1, a kind of used in proton exchange membrane fuel cell pole plate, including fragmenting plate 1 and the graphite linings 2 of the gas channel side being positioned at Proton Exchange Membrane Fuel Cells, the carbon fiber reinforced aluminum matrix composite plate that described fragmenting plate uses thickness to be 0.6mm, carbon fiber reinforced aluminum matrix composite plate is with aluminum or aluminum alloy as matrix, with low-density, high intensity, the carbon fiber reinforced aluminum matrix composite of high-modulus.Fiber alignment distribution can select to design one-dimensional, two-dimentional or distributed in three dimensions according to component performance feature.This material has the excellent combination properties such as specific strength is high, specific modulus is high, heat-conductivity conducting is good, high temperature resistant, wear-resisting, thermal coefficient of expansion is little.The performance of fibre reinforced aluminum can require to be obtained by the content of optimum organization fiber, distribution according to design performance.It is matsurface that described fragmenting plate 1 is provided with the one side of described graphite linings 2, described matsurface has rough surface, in the present embodiment, section rectangular lobe 3 is distributed on described matsurface, described graphite linings is arranged on a matsurface of described fragmenting plate, and is combined as a whole with described fragmenting plate.
Embodiment two
Seeing Fig. 2, the present embodiment is essentially identical with the structure of embodiment one, and difference is: the carbon fiber reinforced aluminum matrix composite plate that described fragmenting plate 1 uses thickness to be 0.3mm, and section curved lobe 4 is distributed on described matsurface.Being uniformly distributed between each lobe of the lobe of arc beneficially graphite linings, also makes graphite linings thickness disperse simultaneously, and permeability is more preferable, beneficially the carrying out of chemical reaction.
Embodiment three
As shown in Figure 3, a kind of used in proton exchange membrane fuel cell pole plate, including fragmenting plate 1 and the graphite linings 2 of the gas channel side being positioned at Proton Exchange Membrane Fuel Cells, the carbon fiber reinforced aluminum matrix composite plate that described fragmenting plate 1 uses thickness to be 0.5mm, carbon fiber reinforced aluminum matrix composite plate is with aluminum or aluminum alloy as matrix, with low-density, high intensity, the carbon fiber reinforced aluminum matrix composite of high-modulus.Fiber alignment distribution can select to design one-dimensional, two-dimentional or distributed in three dimensions according to component performance feature.This material has the excellent combination properties such as specific strength is high, specific modulus is high, heat-conductivity conducting is good, high temperature resistant, wear-resisting, thermal coefficient of expansion is little.The performance of fibre reinforced aluminum can require to be obtained by the content of optimum organization fiber, distribution according to design performance.nullIt is matsurface that described fragmenting plate 1 is provided with the one side of described graphite linings 2，Described matsurface has rough surface，In the present embodiment，The lobe 5 of needle prick shape it is provided with on the matsurface of described fragmenting plate 1，Inventor finds in long-term practice，The lobe of the needle prick shape of fragmenting plate improves contact area to greatest extent，Simultaneously，The lobe 5 that there is needle prick shape more can increase the adhesive force between graphite linings and fragmenting plate，Guarantee that both are tightly combined，It is beneficial to gas molecule in fuel cell pass through、Concurrent biochemical reaction，And when being provided with the lobe of needle prick shape on a matsurface of fragmenting plate，The lobe of described needle prick shape can be protruded from another side of described fragmenting plate when punching press pole plate，So that another side of fragmenting plate also becomes matsurface，Make to combine between graphite linings and fragmenting plate tightr；Described graphite linings is arranged on a matsurface of described fragmenting plate, and is combined as a whole with described fragmenting plate.
Embodiment four
As shown in Figure 4, fuel cell, including two pieces of pole plates 6 and the membrane electrode assembly 7 that is between two pieces of described pole plates 6, described pole plate 6 uses structure as above, that is: described pole plate 6 includes fragmenting plate and is positioned at the graphite linings of gas channel side of Proton Exchange Membrane Fuel Cells, described fragmenting plate at least one side is matsurface, and described matsurface has rough surface；Described graphite linings is arranged on a matsurface of described fragmenting plate, and is combined as a whole with described fragmenting plate；The fragmenting plate one of described pole plate is facing to described membrane electrode assembly 7.
In this utility model, the edge of described pole plate 6 utilizes frame 8 to be fixed.Inventor have selected a kind of highly stable structure: as shown in Figure 5, frame utilizes two sidewalls to form long and narrow mounting groove, Conductive sealant seals, the edge of described pole plate 6 clamps in being plugged in described mounting groove, the lateral surface bottom of described sidewall offers some screens grooves 9, and the lateral surface top of described sidewall is provided with flexure strip 10, after the bending of described flexure strip, end is limited in screens groove 9.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description, principle of the present utility model is simply described; on the premise of without departing from this utility model spirit and scope; this utility model also has various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (8)
1. a used in proton exchange membrane fuel cell pole plate, it is characterised in that: include
Fragmenting plate, described fragmenting plate at least one side is matsurface, and described matsurface has uneven
Surface；
And it being positioned at the graphite linings of the gas channel side of Proton Exchange Membrane Fuel Cells, described graphite linings sets
It is placed on a matsurface of described fragmenting plate, and is combined as a whole with described fragmenting plate.
A kind of used in proton exchange membrane fuel cell pole plate the most according to claim 1, it is characterised in that:
The carbon fiber reinforced aluminum matrix composite plate that described fragmenting plate uses thickness to be 0.3-0.6mm.
A kind of used in proton exchange membrane fuel cell pole plate the most according to claim 2, it is characterised in that:
It is matsurface that described fragmenting plate is provided with the one side of described graphite linings.
A kind of used in proton exchange membrane fuel cell pole plate the most according to claim 3, it is characterised in that:
Lobe that section rectangular is distributed on described matsurface.
A kind of used in proton exchange membrane fuel cell pole plate the most according to claim 3, it is characterised in that:
Lobe that section curved is distributed on described matsurface.
A kind of used in proton exchange membrane fuel cell pole plate the most according to claim 3, it is characterised in that:
The lobe of needle prick shape is distributed on described matsurface.
7. fuel cell, including two pieces of pole plates and the membrane electrode assembly that is between two pieces of described pole plates, its
It is characterised by: described pole plate uses the pole plate as described in any one of claim 1-6；The segmentation of described pole plate
Plate one is facing to described membrane electrode assembly.
Fuel cell the most according to claim 7, it is characterised in that: the edge of described pole plate utilizes
Frame is fixed, and Conductive sealant seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620507559.8U CN205645995U (en) | 2016-05-30 | 2016-05-30 | Polar plate and fuel cell for proton exchange membrane fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620507559.8U CN205645995U (en) | 2016-05-30 | 2016-05-30 | Polar plate and fuel cell for proton exchange membrane fuel cell |
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| Publication Number | Publication Date |
|---|---|
| CN205645995U true CN205645995U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620507559.8U Expired - Fee Related CN205645995U (en) | 2016-05-30 | 2016-05-30 | Polar plate and fuel cell for proton exchange membrane fuel cell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243045A (en) * | 2021-11-15 | 2022-03-25 | 潍柴动力股份有限公司 | Fuel cell unipolar plate and manufacturing method thereof |
| CN114335631A (en) * | 2021-12-31 | 2022-04-12 | 江苏大学 | Quick low-temperature cold start fuel cell |
-
2016
- 2016-05-30 CN CN201620507559.8U patent/CN205645995U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243045A (en) * | 2021-11-15 | 2022-03-25 | 潍柴动力股份有限公司 | Fuel cell unipolar plate and manufacturing method thereof |
| CN114335631A (en) * | 2021-12-31 | 2022-04-12 | 江苏大学 | Quick low-temperature cold start fuel cell |
| CN114335631B (en) * | 2021-12-31 | 2023-09-29 | 江苏大学 | Quick low-temperature cold start fuel cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20170530 |