Fabrication of Bipolar Plates from Thermoplastic Elastomer Composites for Vanadium Redox Flow Battery
A vanadium redox flow battery (VRFB) is a promising large-scale energy storage device, due to its safety, durability, and scalability. The utilization of bipolar plates (BPs), made of thermoplastic vulcanizates (TPVs), synthetic graphite, woven-carbon-fiber fabric (WCFF), and a very thin pyrolytic g...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/11/2143 |
| _version_ | 1797492020747436032 |
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| author | Kannika Onyu Rungsima Yeetsorn Jeff Gostick |
| author_facet | Kannika Onyu Rungsima Yeetsorn Jeff Gostick |
| author_sort | Kannika Onyu |
| collection | DOAJ |
| description | A vanadium redox flow battery (VRFB) is a promising large-scale energy storage device, due to its safety, durability, and scalability. The utilization of bipolar plates (BPs), made of thermoplastic vulcanizates (TPVs), synthetic graphite, woven-carbon-fiber fabric (WCFF), and a very thin pyrolytic graphite sheet (GS), is investigated in this study. To boost volumetric electrical conductivity, WCFF was introduced into the TPV composite, and the plate was covered with GS to increase surface electrical conductivity. Created composite BPs acquire the desired electrical conductivity, mechanical strength, and deformation characteristics. Those properties were assessed by a series of characterization experiments, and the morphology was examined using an optical microscope, a scanning electron microscope, and atomic force microscopy. Electrochemical testing was used to confirm the possibility of using the suggested BP in a working VRFB. The laminated BP was utilized in a flow cell to electrolytically convert V(IV) to V(V) and V(II), which achieved comparable results to a commercial graphite bipolar plate. Following these experiments, the laminated bipolar plates’ surfaces were examined using X-ray photoelectron spectroscopy, and no evidence of corrosion was found, indicating good durability in the hostile acidic environment. |
| first_indexed | 2024-03-10T00:57:35Z |
| format | Article |
| id | doaj.art-518725ea926a44799a908362774faad7 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T00:57:35Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-518725ea926a44799a908362774faad72023-11-23T14:40:19ZengMDPI AGPolymers2073-43602022-05-011411214310.3390/polym14112143Fabrication of Bipolar Plates from Thermoplastic Elastomer Composites for Vanadium Redox Flow BatteryKannika Onyu0Rungsima Yeetsorn1Jeff Gostick2Department of Industrial Chemistry, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandMaterials and Production Engineering, The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandDepartment of Chemical Engineering, University of Waterloo, Waterloo, ON N2L 3G1, CanadaA vanadium redox flow battery (VRFB) is a promising large-scale energy storage device, due to its safety, durability, and scalability. The utilization of bipolar plates (BPs), made of thermoplastic vulcanizates (TPVs), synthetic graphite, woven-carbon-fiber fabric (WCFF), and a very thin pyrolytic graphite sheet (GS), is investigated in this study. To boost volumetric electrical conductivity, WCFF was introduced into the TPV composite, and the plate was covered with GS to increase surface electrical conductivity. Created composite BPs acquire the desired electrical conductivity, mechanical strength, and deformation characteristics. Those properties were assessed by a series of characterization experiments, and the morphology was examined using an optical microscope, a scanning electron microscope, and atomic force microscopy. Electrochemical testing was used to confirm the possibility of using the suggested BP in a working VRFB. The laminated BP was utilized in a flow cell to electrolytically convert V(IV) to V(V) and V(II), which achieved comparable results to a commercial graphite bipolar plate. Following these experiments, the laminated bipolar plates’ surfaces were examined using X-ray photoelectron spectroscopy, and no evidence of corrosion was found, indicating good durability in the hostile acidic environment.https://www.mdpi.com/2073-4360/14/11/2143bipolar platethermoplastic vulcanizate compositepyrolytic graphite sheetwoven-carbon-fiber fabricvanadium redox flow battery |
| spellingShingle | Kannika Onyu Rungsima Yeetsorn Jeff Gostick Fabrication of Bipolar Plates from Thermoplastic Elastomer Composites for Vanadium Redox Flow Battery Polymers bipolar plate thermoplastic vulcanizate composite pyrolytic graphite sheet woven-carbon-fiber fabric vanadium redox flow battery |
| title | Fabrication of Bipolar Plates from Thermoplastic Elastomer Composites for Vanadium Redox Flow Battery |
| title_full | Fabrication of Bipolar Plates from Thermoplastic Elastomer Composites for Vanadium Redox Flow Battery |
| title_fullStr | Fabrication of Bipolar Plates from Thermoplastic Elastomer Composites for Vanadium Redox Flow Battery |
| title_full_unstemmed | Fabrication of Bipolar Plates from Thermoplastic Elastomer Composites for Vanadium Redox Flow Battery |
| title_short | Fabrication of Bipolar Plates from Thermoplastic Elastomer Composites for Vanadium Redox Flow Battery |
| title_sort | fabrication of bipolar plates from thermoplastic elastomer composites for vanadium redox flow battery |
| topic | bipolar plate thermoplastic vulcanizate composite pyrolytic graphite sheet woven-carbon-fiber fabric vanadium redox flow battery |
| url | https://www.mdpi.com/2073-4360/14/11/2143 |
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