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A High Conductive Composite Bipolar Plate with Conductive Network Constructed by Chemical Vapor Deposition
| Content Provider | MDPI |
|---|---|
| Author | Li, Wenkai Zeng, Haodong Peng, Tao Gao, Ziteng Xie, Zhiyong |
| Copyright Year | 2022 |
| Description | In this study, a highly conductive composite bipolar plate with an embedded conductive carbon nanofiber network was prepared by chemical vapor deposition, and a conductive network was constructed inside the composite bipolar plate. The latter network was then compared with a conductive network formed by directly adding carbon nanotubes more evenly distributed. The optimum preparation methods of vapor-grown carbon fibers and the fiber content were analyzed, and the specific surface area and porosity of the bipolar plates were measured and analyzed using a BET test. The results show that the carbon nanofibers prepared under the conditions of 700 °C and a content of 2% exhibited the best effect on improving the performance of the bipolar plates. The conductivity of the prepared bipolar plates could reach 255.2 S/cm, which is 22.1% higher than treatment with multi-walled carbon nanotubes. The bending strength of the prepared bipolar plates was 47.92 MPa, and the interface contact resistance was 6.24 $mΩ·cm^{2}$. In conclusion, the bipolar plates modified with vapor-grown carbon fibers were a promising kind of material for proton exchange membrane fuel cells. |
| Starting Page | 4979 |
| e-ISSN | 19961073 |
| DOI | 10.3390/en15144979 |
| Journal | Energies |
| Issue Number | 14 |
| Volume Number | 15 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-07-07 |
| Access Restriction | Open |
| Subject Keyword | Energies Composite Bipolar Plates Carbon Nanotube Chemical Vapor Deposition Vapor-grown Carbon Fibers Proton Exchange Membrane Fuel Cell |
| Content Type | Text |
| Resource Type | Article |
