Preparation method of flexible graphite composite bipolar plate of proton exchange membrane fuel cell
The invention relates to a preparation method of a flexible graphite composite bipolar plate of a proton exchange membrane fuel cell, which comprises anode flow field, a cathode flow field and a water plate made of flexible graphite plates, which are assembled into a bipolar plate with a sealing fra...
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| creator | DU CHAO LUO XIAOKUAN MING PINGWEN FU YUNFENG |
| description | The invention relates to a preparation method of a flexible graphite composite bipolar plate of a proton exchange membrane fuel cell, which comprises anode flow field, a cathode flow field and a water plate made of flexible graphite plates, which are assembled into a bipolar plate with a sealing frame and a partition plate. The method is that firstly low density flexible graphite plates are prepressed into plates with the density being of 0.65 to 0.75 g/cm under vacuum, then the plates are dipped in low viscosity resin solution under vacuum, after surface treatment and drying, the plates are pressed through a roll or a die out the flow field, and a flow filed and a water plate made of polymer/flexible graphite composite plates is obtained after the plates are solidified. At last, the flow filed and the water plate made of the polymer/flexible graphite composite plates with the sealing frame and the partition plate are assembled into a bipolar plate. The preparation method has the advantages that the resin con |
| format | Patent |
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The method is that firstly low density flexible graphite plates are prepressed into plates with the density being of 0.65 to 0.75 g/cm under vacuum, then the plates are dipped in low viscosity resin solution under vacuum, after surface treatment and drying, the plates are pressed through a roll or a die out the flow field, and a flow filed and a water plate made of polymer/flexible graphite composite plates is obtained after the plates are solidified. At last, the flow filed and the water plate made of the polymer/flexible graphite composite plates with the sealing frame and the partition plate are assembled into a bipolar plate. 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| subjects | BASIC ELECTRIC ELEMENTS CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE |
| title | Preparation method of flexible graphite composite bipolar plate of proton exchange membrane fuel cell |
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