CN202159742U - Compound anion exchange membrane for fuel cell - Google Patents
Compound anion exchange membrane for fuel cell Download PDFInfo
- Publication number
- CN202159742U CN202159742U CN2011202021860U CN201120202186U CN202159742U CN 202159742 U CN202159742 U CN 202159742U CN 2011202021860 U CN2011202021860 U CN 2011202021860U CN 201120202186 U CN201120202186 U CN 201120202186U CN 202159742 U CN202159742 U CN 202159742U
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- CN
- China
- Prior art keywords
- fuel cell
- exchange membrane
- polymer
- anion exchange
- anion
- 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.)
- Expired - Fee Related
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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
Abstract
The utility model relates to a compound anion exchange membrane for a fuel cell. The compound anion exchange membrane for the fuel cell is characterized by comprising base membrane with a plurality of pore spaces, and the pore spaces are filled with quaternary ammonium polymer generated from reaction of chloromethylation polymer and trimethylamine. The compound anion exchange membrane for the fuel cell not only has the advantages of high mechanical strength and large tensile strength, but also has high ion conductivity by being filled with polytetrafluorethylene with quaternary ammonium polymer, thus ensuring high performance of the fuel cell; and simultaneously, the cost is low, so that the compound anion exchange membrane for the fuel cell provides possibility for industrialization.
Description
Technical field
The utility model relates to a kind of amberplex, particularly relates to a kind of fuel cell and uses the plyability anion-exchange membrane.
Background technology
Fuel cell (FuelCell) is the TRT that a kind of chemical energy that will be present in fuel and the oxidant is converted into electric energy; Have generating efficiency height, advantage such as low in the pollution of the environment; With its excellent performance and to environment characteristics such as pollution seldom be known as the 4th generation generation technology, more the someone thinks that it is 21 century car combustion engine substituent the most likely.The polyelectrolyte membrane cell has become the most competitive cleaning of gasoline internal combustion mechanomotive force and has replaced power source.According to the difference of conductive ion kind in the polyelectrolyte film, the polyelectrolyte fuel cell is divided into Proton Exchange Membrane Fuel Cells and alkaline polymer membrane cell.The research to the alkaline polymer fuel cell has at present become focus, and amberplex is a key component wherein, and the performance of battery is had decisive influence.
The alkaline polymer electrolyte membrane cell mainly is the quaternary ammonium type alkaline polymer with the matter material of polymer anion-exchange membrane; Existing fats polymer quaternary ammonium type dielectric film is often easily by the methyl alcohol swelling; Methanol permeability is still higher, or the temperature tolerance of film forming or film is relatively poor. and low mechanical strength etc.So common quaternary ammonium type polyelectrolyte film is not suitable for the alkaline polymer electrolyte membrane cell.
Alkaline polymer electrolyte membrane cell technology has following three advantages: (1) battery requires low to catalyst, can use silver or nickel to replace noble metal platinum to make catalyst; (2) cation in the alkali anion exchange membrane all is fixed on the polymer chain, does not have free salt in the liquid phase, can avoid traditional alkaline fuel cell alkalescence liquid electrolyte to be prone to and CO
2The influence of reaction; (3) be that the transmission direction of conductive ion is opposite with the methanol fuel dispersal direction in the film, help suppressing fuel and in film, permeate.Therefore, the exploitation of high conductivity, low methanol permeability polymer anion-exchange membrane is the industrialized prerequisite of alkaline polymer electrolyte membrane cell.
The utility model content
The purpose of the utility model provides that a kind of cost is low, mechanical strength is high, hot strength is big, have the high-performance and the longevity of very high ionic conductivity, the high-performance that can guarantee polymer dielectric film fuel cell and long-life polymer dielectric film fuel cell.
For solving the problems of the technologies described above; The utility model is taked following technical scheme: a kind of fuel cell is used the plyability anion-exchange membrane; It is characterized in that: comprise basement membrane, in said hole, be filled with the quaternary ammonium polymer that generates by chloromethylation polymer and trimethylamine reaction with a plurality of holes.
Further, the porosity of said basement membrane is greater than 70%.
Further, said porosity is 80%.
Further, said basement membrane is a poly tetrafluoroethylene.
Further, said chloromethylation polymer is selected from a kind of in chloromethyl polysulphone, chloromethylation polyether sulfone, chloromethylation polyether-ketone, the chloromethylation polyimides.
Fuel cell in the utility model is filled with the polytetrafluoroethylene of quaternary ammonium polymer with the plyability anion-exchange membrane; Therefore not only have high mechanical strength, characteristics that hot strength is big; And have very high ionic conductivity, thereby guaranteed the high-performance of fuel cell; Simultaneously, because it is with low cost, therefore possibility is provided for industrialization.
Description of drawings
Fig. 1 is that fuel cell in the utility model is with the structural representation of plyability anion-exchange membrane.
Embodiment
Be elaborated below in conjunction with the technical scheme of accompanying drawing to the utility model.
As shown in Figure 1, said fuel cell comprises the basement membrane 1 with a plurality of holes 2 with the plyability anion-exchange membrane, in said hole 2, is filled with the quaternary ammonium polymer that is generated by chloromethylation polymer and trimethylamine reaction.
Preferably, the porosity of said basement membrane 1 is greater than 70%, and further, preferably, said porosity is 80%.
Preferably, said basement membrane 1 is a poly tetrafluoroethylene.
Preferably, said chloromethylation polymer is selected from one or more in chloromethyl polysulphone, chloromethylation polyether sulfone, chloromethylation polyether-ketone, the chloromethylation polyimides.Preferably, in the process of making, at first the chloromethylation polymer is dissolved in dimethyl sulfoxide (DMSO), the N-methyl pyrrolidone, N, N-dimethylacetylamide .N in the organic solvents such as dinethylformamide, forms first solution; Then, a porosity is stretched out greater than 70% poly tetrafluoroethylene fixing,, lie on the glass plate, add a small amount of alcohol it soaked into fully, remove bubble side by side, add high boiling solvents such as little amount of N-methyl pyrrolidone again, make it carry out the solution exchange; Once more, above-mentioned first drips of solution is added in the fenestra of poly tetrafluoroethylene, poly tetrafluoroethylene is immersed in the solution fully, and the film of evaporation system at a certain temperature; At last; The composite membrane of polytetrafluoroethylene and the formation of chloromethylation polymer is immersed in the finite concentration trimethylamine; Treat to take out after this composite membrane deliquescing, use the remaining trimethylamine solution in distilled water flushing surface then, thereby the fuel cell that obtains in the utility model is used the plyability anion-exchange membrane.
Further specify fuel cell in the utility model with the manufacturing process of plyability anion-exchange membrane through an embodiment below.
(1) gets 1 gram chloromethyl polysulphone, put into beaker, add the 50mlN-methyl pyrrolidone, heating for dissolving; (2) poly tetrafluoroethylene with one 80% porosity tightly is fixed on the iron plate of ring-type, lies in the glass plate, adds a small amount of alcohol it is soaked into fully, removes bubble side by side, adds little amount of N-methyl pyrrolidone again, makes it carry out the solution exchange; (3) above-mentioned solution is slowly poured on the glass plate, poly tetrafluoroethylene is immersed in the solution fully, at 40 ℃ of films of evaporation system down; (4) polytetrafluoroethylene/chloromethyl polysulphone composite membrane is immersed in certain 20% trimethylamine aqueous solution, treats to take out after the film deliquescing,, thereby obtain quaternized anion PEM with the remaining trimethylamine solution in distilled water flushing surface.
Fuel cell in the utility model can reach more than the 20MPa with the hot strength of plyability anion-exchange membrane, and ionic conductivity can reach 0.02S/cm.Can be used for polymer dielectric film fuel cell, the monocell open circuit voltage greater than 0.9V, the internal resistance of cell less than 1 ohm/cm
2.
Fuel cell in the utility model is filled with the polytetrafluoroethylene of quaternary ammonium polymer with the plyability anion-exchange membrane; Therefore not only have high mechanical strength, characteristics that hot strength is big; And have very high ionic conductivity, thereby guaranteed the high-performance of fuel cell; Simultaneously, because it is with low cost, therefore possibility is provided for industrialization.
The above is merely the preferred embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (5)
1. a fuel cell is used the plyability anion-exchange membrane, it is characterized in that: comprise the basement membrane with a plurality of holes, in said hole, be filled with the quaternary ammonium polymer that is generated by chloromethylation polymer and trimethylamine reaction.
2. fuel cell as claimed in claim 1 is used the plyability anion-exchange membrane, it is characterized in that: the porosity of said basement membrane is greater than 70%.
3. fuel cell as claimed in claim 2 is used the plyability anion-exchange membrane, it is characterized in that: said porosity is 80%.
4. fuel cell as claimed in claim 2 is used the plyability anion-exchange membrane, it is characterized in that: said basement membrane is a poly tetrafluoroethylene.
5. use the plyability anion-exchange membrane like each described fuel cell of claim 1-4, it is characterized in that: said chloromethylation polymer is selected from a kind of in chloromethyl polysulphone, chloromethylation polyether sulfone, chloromethylation polyether-ketone, the chloromethylation polyimides.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2011202021860U CN202159742U (en) | 2011-06-15 | 2011-06-15 | Compound anion exchange membrane for fuel cell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2011202021860U CN202159742U (en) | 2011-06-15 | 2011-06-15 | Compound anion exchange membrane for fuel cell |
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CN202159742U true CN202159742U (en) | 2012-03-07 |
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CN2011202021860U Expired - Fee Related CN202159742U (en) | 2011-06-15 | 2011-06-15 | Compound anion exchange membrane for fuel cell |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107221626A (en) * | 2017-05-18 | 2017-09-29 | 大连理工大学 | The application of potassium ferrocyanide iron/anthraquinone battery separator |
-
2011
- 2011-06-15 CN CN2011202021860U patent/CN202159742U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107221626A (en) * | 2017-05-18 | 2017-09-29 | 大连理工大学 | The application of potassium ferrocyanide iron/anthraquinone battery separator |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20140615 |
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EXPY | Termination of patent right or utility model |