CN102593492A - Fuel cell - Google Patents
Fuel cell Download PDFInfo
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- CN102593492A CN102593492A CN2012100536861A CN201210053686A CN102593492A CN 102593492 A CN102593492 A CN 102593492A CN 2012100536861 A CN2012100536861 A CN 2012100536861A CN 201210053686 A CN201210053686 A CN 201210053686A CN 102593492 A CN102593492 A CN 102593492A
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- fuel cell
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Fuel Cell (AREA)
Abstract
The invention provides a fuel cell. The fuel cell comprises, sequentially superposed, an anode plate, an anode sealing sheet, a membrane electrode, a cathode sealing sheet and a cathode plate. According to the fuel cell provided in the invention, the anode sealing sheet is arranged between the anode plate and the membrane electrode, the cathode sealing sheet is arranged between the cathode plate and the membrane plate, the sealing sheets are difficult to age in the long-term use process, the fuel cell has a very good sealing performance after the sealing sheets and other assemblies are fixed, and there is no need to arrange sealing grooves on edges of the anode plate and the cathode plate during the sealing of the fuel cell. The fuel cell has the advantages of simple manufacturing process and short manufacturing period, and the sealing sheets of the fuel cell can be repeatedly used, are convenient to dismount and mount, and are suitable for the batch production.
Description
Technical field
The present invention relates to the fuel cell technology field, relate in particular to a kind of fuel cell.
Background technology
Directly the methyl alcohol Proton Exchange Membrane Fuel Cells is claimed DMFC (DMFC) again, is a kind of novel device that directly chemical energy is converted into electric energy.DMFC is owing to the internal consumption of no-rotary part, and without burning, energy conversion efficiency is not controlled by Carnot cycle, therefore has high energy conversion efficiency; No oxysulfide and discharged nitrous oxides do not have harm to environment; Condition of work is gentle, and volume is little, in light weight and safety durable, is suitable for moving the application of the energy, also is desirable electrical source of power.
The core component of DMFC is a membrane electrode, is made up of PEM and the negative electrode and the anode that are distributed in the film both sides, and some also comprises diffusion layer and supporting layer.Because materials such as methyl alcohol, oxygen will arrive electrode through the passage on pole plate or the flow field when battery operated, therefore need between pole plate and membrane electrode, effectively seal, with effective transmission that ensures material and the generation that prevents leakage situation.In addition,, therefore also need a plurality of cell stack series connection, between these series connected battery, also need carry out encapsulation process because voltage and underpower that single battery can provide are difficult to satisfy instructions for use.
Existing Sealing Technology mainly contains the glue sealing, be about to pole plate and membrane electrode and utilize the packaging plastic bonding to be one, but packaging plastic easy generation in the long-time running process of battery is aging or produce bubble, loses sealing effectiveness gradually.The groove line encapsulation promptly is provided with groove on pole plate, the rubber-like encapsulant is poured in the groove; Form sealing strip, this encapsulating method need carry out cure process with the membrane electrode edge usually, the technology relative complex; The pole plate strip of paper used for sealing is prone to misplace relatively simultaneously, causes partially sealed not tight.Also have a kind of encapsulating method to be to use curable encapsulant; Promptly at first use mould that assembly such as membrane electrode, the pole plate etc. of battery are fixed; Then curable encapsulant is filled in the mould, forms hermetically-sealed construction through actinic radiation radiation curable sealant then, although this method good sealing effect; But complex process, the cycle is long.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of fuel cell, through hermetically-sealed construction provided by the invention, makes fuel cell have good sealing, and the hermetically-sealed construction manufacture craft of fuel cell is simple simultaneously, the cycle short.
The invention discloses a kind of fuel cell, comprise plate, anode seal sheet, membrane electrode, negative electrode diaphragm seal and cathode plate that stack successively is provided with.
Preferably, said plate, anode seal sheet, membrane electrode, the negative electrode diaphragm seal of stack placement run through through screw with cathode plate and are connected.
Preferably, said anode seal sheet and said negative electrode diaphragm seal are the shaped as frame sheet.
Preferably, said anode seal sheet and said negative electrode diaphragm seal inward flange apart from the outer peripheral vertical range of membrane electrode less than 1mm.
Preferably, said anode seal sheet is one or more in silica gel sheet, fluorine silica gel sheet, graphite paper, stainless steel substrates and the teflon plate.
Preferably, said anode seal sheet is hard diaphragm seal/soft diaphragm seal composite construction, and said hard diaphragm seal is a stainless steel substrates, and said soft diaphragm seal is silica gel sheet, fluorine silica gel sheet, graphite paper or teflon plate.
Preferably, said negative electrode diaphragm seal is one or more in silica gel sheet, fluorine silica gel sheet, graphite paper, stainless steel substrates and the teflon plate.
Preferably, said negative electrode diaphragm seal is hard diaphragm seal/soft diaphragm seal composite construction, and said hard diaphragm seal is a stainless steel substrates, and said soft diaphragm seal is silica gel sheet, fluorine silica gel sheet, graphite paper or teflon plate.
Preferably, said plate and said cathode plate are graphite cake.
Preferably, said membrane electrode comprises negative electrode, PEM and the anode that sets gradually.
Compared with prior art, the invention provides a kind of fuel cell, comprise plate, anode seal sheet, membrane electrode, negative electrode diaphragm seal and cathode plate that stack successively is provided with.The present invention is between plate and membrane electrode; And set up anode seal sheet and negative electrode diaphragm seal between cathode plate and the membrane electrode respectively; Be difficult in the long-term use of above-mentioned diaphragm seal wearing out, after fixing with other assemblies, fuel cell has good sealing; Fuel cell needn't be provided with sealed groove in pole plate edge simultaneously, and manufacture craft is simple, and fabrication cycle is short, and fuel cell seal sheet of the present invention can be reused, and easy accessibility is suitable for producing in batches.
Description of drawings
Fig. 1 is the structural representation of fuel cell provided by the invention;
Fig. 2 is the location diagram of membrane electrode 31 of the present invention with anode seal sheet 21;
Fig. 3 is the fuel cell structure sketch map of the embodiment of the invention 1 preparation;
Fig. 4 is the fuel cell structure sketch map of the embodiment of the invention 2 preparations.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, describe just to further specifying feature and advantage of the present invention but should be appreciated that these, rather than to the restriction of claim of the present invention.
The embodiment of the invention discloses a kind of fuel cell, Fig. 1 is a fuel cell structure sketch map provided by the invention, comprises plate 1, anode seal sheet 2, membrane electrode 3, negative electrode diaphragm seal 4 and cathode plate 5 that stack successively is provided with.
It will be understood by those skilled in the art that above-mentioned anode seal sheet 2 need be provided with the material channel hole with above-mentioned negative electrode diaphragm seal 4 in order to guarantee reactant such as methyl alcohol, oxygen, water and carbon dioxide and product smoothly through diaphragm seal.In order to guarantee firm being fixed between membrane electrode and the pole plate of diaphragm seal, and be convenient to dismounting, plate 1, anode seal sheet 2, membrane electrode 3, negative electrode diaphragm seal 4 and cathode plate 5 that the present invention places above-mentioned stack preferably run through through screw and are connected.The shape of above-mentioned anode seal sheet 2 and negative electrode diaphragm seal 4 preferably adopts shaped as frame.
Above-mentioned anode seal sheet 2 is preferably one or more in silica gel sheet, fluorine silica gel sheet, graphite paper, stainless steel substrates and the teflon plate; Above-mentioned negative electrode diaphragm seal 4 is preferably one or more in silica gel sheet, fluorine silica gel sheet, graphite paper, stainless steel substrates and the teflon plate.
As preferred version, above-mentioned anode seal sheet 2 is the composite construction of soft diaphragm seal/hard diaphragm seal, and above-mentioned hard diaphragm seal is a stainless steel substrates, and above-mentioned soft diaphragm seal is silica gel sheet, fluorine silica gel sheet, graphite paper or teflon plate.In above-mentioned composite construction; Wherein the stainless steel substrates as the hard diaphragm seal mainly plays a supportive role, and all the other soft diaphragm seals have certain deformation degree or elasticity, has guaranteed the existing certain intensity of compound sealing structure; The certain deformation degree is arranged again, thereby make fuel cell have better sealing.Similarly, the also preferred composite construction that adopts soft diaphragm seal/hard diaphragm seal of above-mentioned negative electrode diaphragm seal 4, above-mentioned hard diaphragm seal is a stainless steel, above-mentioned soft diaphragm seal is silica gel sheet, fluorine silica gel sheet, graphite paper or teflon plate.
Membrane electrode is the vitals of operation of fuel cells; The also preferred antianode diaphragm seal of the present invention 2 limits with the position relation of negative electrode diaphragm seal 4 with membrane electrode 3, specifically adopts following scheme: the inward flange of anode seal sheet 2 and negative electrode diaphragm seal 4 apart from the outer peripheral vertical range of membrane electrode 3 less than 1mm.Be example with anode seal sheet 2, as shown in Figure 2, Fig. 2 is the location diagram of membrane electrode 31 and anode seal sheet 21.The vertical range L of the inward flange b of anode seal sheet 21 and the outward flange a of membrane electrode 31 is less than 1mm.This mainly is to consider when membrane electrode assembly is applied to battery; Its with process that methanol solution contacts in slight swelling can take place; The swelling width is about 1mm, if the inward flange of diaphragm seal apart from the outer peripheral vertical range of membrane electrode greater than 1mm, just might cause film not covered by diaphragm seal; Cause that film plays fold and stops up flow field channel or make methyl alcohol penetrate, thereby influence fuel cell performance.
The above-mentioned plate 1 of the present invention all is preferably graphite cake with above-mentioned cathode plate 5.As preferred version, membrane electrode 3 according to the invention comprises and setting gradually: negative electrode, PEM and anode.Above-mentioned PEM is preferably perfluoro sulfonic acid membrane.Above-mentioned negative electrode specifically comprises cathode support layer, cathode micro porous layer and the cathode catalysis layer that sets gradually; Above-mentioned anode specifically comprises anode support, anode micro porous layer and the anode catalyst layer that sets gradually.Above-mentioned cathode support layer and anode support are preferably carbon paper.
The invention provides a kind of fuel cell, comprise plate, anode seal sheet, membrane electrode, negative electrode diaphragm seal and cathode plate that stack successively is provided with.The present invention is between plate and membrane electrode; And anode seal sheet and negative electrode diaphragm seal have been set up between cathode plate and the membrane electrode respectively; Be difficult in the long-term use of above-mentioned diaphragm seal wearing out, after diaphragm seal and other assembly were fixing, fuel cell had good sealing; Simultaneously when fuel cell seal, needn't sealed groove be set in pole plate edge, so the hermetically-sealed construction of fuel cell is simpler, fabrication cycle is shorter.
In order further to understand the present invention, below in conjunction with embodiment fuel cell provided by the invention is described in detail, protection scope of the present invention is not limited by the following examples.
The structural representation of the fuel cell that Fig. 3 makes for present embodiment, concrete preparation technology is following:
Stainless steel diaphragm seal 7 is passed through silica stationary in the contact membranes electrode side of plate 6; Silica gel sheet 8 is placed stainless steel diaphragm seal 7 sides of plate 6; With another stainless steel diaphragm seal 7 through silica stationary in the contact membranes electrode side of cathode plate 11, graphite paper diaphragm seal 10 is placed stainless steel diaphragm seal 7 sides of cathode plate 11, membrane electrode 9 is placed between the cathode plate 11 and plate 6 that diaphragm seal is housed; Press through screw, reach sealing effectiveness.The hermetically-sealed construction that present embodiment provides comprises what stack successively was provided with: plate 6, stainless steel diaphragm seal 7, silica gel sheet 8, membrane electrode 9, graphite paper diaphragm seal 10, stainless steel diaphragm seal 7 and cathode plate 11.
The structural representation of the fuel cell that Fig. 4 makes for present embodiment, concrete preparation technology is following:
Fluorine silica gel sealing sheet 13 is placed plate 12 1 sides, graphite paper diaphragm seal 15 is placed cathode plate 16 1 sides, membrane electrode 14 is placed the centre of fluorine silica gel sealing sheet 13 and graphite paper diaphragm seal 15, press, reach sealing effectiveness through screw.With a plurality of membrane electrodes and the pole plate sealing back formation sealed reactor of connecting.The hermetically-sealed construction that present embodiment provides comprises what stack successively was provided with: plate 12, fluorine silica gel sealing sheet 13, membrane electrode 14, graphite paper diaphragm seal 15 and cathode plate 16.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection range of claim of the present invention.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a fuel cell is characterized in that,
Comprise plate (1), anode seal sheet (2), membrane electrode (3), negative electrode diaphragm seal (4) and cathode plate (5) that stack successively is provided with.
2. fuel cell according to claim 1 is characterized in that, said plate (1), anode seal sheet (2), membrane electrode (3), negative electrode diaphragm seal (4) that stack is placed run through through screw with cathode plate (5) and be connected.
3. fuel cell according to claim 1 is characterized in that, said anode seal sheet (2) and said negative electrode diaphragm seal (4) are the shaped as frame sheet.
4. fuel cell according to claim 1 is characterized in that, the outer peripheral vertical range of the inward flange said membrane electrode of distance (3) of said anode seal sheet (2) and said negative electrode diaphragm seal (4) is all less than 1mm.
5. fuel cell according to claim 1 is characterized in that, said anode seal sheet (2) is one or more in silica gel sheet, fluorine silica gel sheet, graphite paper, stainless steel substrates and the teflon plate.
6. fuel cell according to claim 5; It is characterized in that; Said anode seal sheet (2) is hard diaphragm seal/soft diaphragm seal composite construction, and said hard diaphragm seal is a stainless steel substrates, and said soft diaphragm seal is silica gel sheet, fluorine silica gel sheet, graphite paper or teflon plate.
7. fuel cell according to claim 1 is characterized in that, said negative electrode diaphragm seal (4) is one or more in silica gel sheet, fluorine silica gel sheet, graphite paper, stainless steel substrates and the teflon plate.
8. fuel cell according to claim 7; It is characterized in that; Said negative electrode diaphragm seal (4) is hard diaphragm seal/soft diaphragm seal composite construction, and said hard diaphragm seal is a stainless steel substrates, and said soft diaphragm seal is silica gel sheet, fluorine silica gel sheet, graphite paper or teflon plate.
9. fuel cell according to claim 1 is characterized in that, said plate (1) and said cathode plate (5) are graphite cake.
10. fuel cell according to claim 1 is characterized in that, said membrane electrode (3) comprises negative electrode, PEM and the anode that sets gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210053686.1A CN102593492B (en) | 2012-03-02 | 2012-03-02 | Fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210053686.1A CN102593492B (en) | 2012-03-02 | 2012-03-02 | Fuel cell |
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| CN102593492A true CN102593492A (en) | 2012-07-18 |
| CN102593492B CN102593492B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210053686.1A Active CN102593492B (en) | 2012-03-02 | 2012-03-02 | Fuel cell |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105144456A (en) * | 2013-04-25 | 2015-12-09 | 日产自动车株式会社 | Insulating structure, fuel cell and fuel cell stack |
| CN109346757A (en) * | 2018-11-12 | 2019-02-15 | 南京攀峰赛奥能源科技有限公司 | A kind of fuel cell pile |
| CN109962273A (en) * | 2017-12-14 | 2019-07-02 | 中国科学院大连化学物理研究所 | A kind of MEA component preparation method |
| CN110767920A (en) * | 2019-11-02 | 2020-02-07 | 深圳市雄韬电源科技股份有限公司 | Fuel cell monomer and preparation method thereof |
| CN110890567A (en) * | 2019-12-02 | 2020-03-17 | 武汉轻工大学 | Air-cooled proton exchange membrane fuel cell graphite bipolar plate and fuel cell thereof |
| CN111477903A (en) * | 2019-12-10 | 2020-07-31 | 张国胜 | Integral dislocation assembly method of bipolar plate, fuel cell stack comprising bipolar plate and power generation system |
| WO2021136320A1 (en) * | 2020-01-03 | 2021-07-08 | 宁波索福人能源技术有限公司 | Solid oxide fuel cell stack |
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2012
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| US20040173974A1 (en) * | 2003-03-05 | 2004-09-09 | Koch Steve George | Seal feature to prevent bending |
| CN2854819Y (en) * | 2005-11-16 | 2007-01-03 | 大连新源动力股份有限公司 | Sealing device of proton exchange film fuel cell |
| CN101867052A (en) * | 2010-06-13 | 2010-10-20 | 哈尔滨工业大学 | Radial type air-breathing miniature fuel battery and preparation method thereof |
Non-Patent Citations (1)
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105144456A (en) * | 2013-04-25 | 2015-12-09 | 日产自动车株式会社 | Insulating structure, fuel cell and fuel cell stack |
| CN105144456B (en) * | 2013-04-25 | 2018-06-08 | 日产自动车株式会社 | Insulating structure, fuel cell and fuel cell pack |
| CN109962273A (en) * | 2017-12-14 | 2019-07-02 | 中国科学院大连化学物理研究所 | A kind of MEA component preparation method |
| CN109346757A (en) * | 2018-11-12 | 2019-02-15 | 南京攀峰赛奥能源科技有限公司 | A kind of fuel cell pile |
| CN109346757B (en) * | 2018-11-12 | 2024-03-22 | 南京攀峰赛奥能源科技有限公司 | Fuel cell stack |
| CN110767920A (en) * | 2019-11-02 | 2020-02-07 | 深圳市雄韬电源科技股份有限公司 | Fuel cell monomer and preparation method thereof |
| CN110767920B (en) * | 2019-11-02 | 2022-02-18 | 深圳市雄韬电源科技股份有限公司 | Fuel cell monomer and preparation method thereof |
| CN110890567A (en) * | 2019-12-02 | 2020-03-17 | 武汉轻工大学 | Air-cooled proton exchange membrane fuel cell graphite bipolar plate and fuel cell thereof |
| CN111477903A (en) * | 2019-12-10 | 2020-07-31 | 张国胜 | Integral dislocation assembly method of bipolar plate, fuel cell stack comprising bipolar plate and power generation system |
| CN111477903B (en) * | 2019-12-10 | 2021-04-23 | 张国胜 | Integral dislocation assembly method of bipolar plate, fuel cell stack comprising bipolar plate and power generation system |
| WO2021136320A1 (en) * | 2020-01-03 | 2021-07-08 | 宁波索福人能源技术有限公司 | Solid oxide fuel cell stack |
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| Publication number | Publication date |
|---|---|
| CN102593492B (en) | 2015-04-01 |
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