E-Thesis 267 views
High performance activated carbon anodes for supercapacitors for energy storage applications / THOMAS FONE
Swansea University Author: THOMAS FONE
Abstract
This work presents the optimisation of an activated carbon ink using Ethyl Cellulose as a binder for application as electrodes in supercapacitors. Effect of variation in the concentration of Ethyl Cellulose binder was explored adopting a commercially available Activated carbon as reference. The resu...
| Published: |
Swansea, Wales, UK
2023
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| Institution: | Swansea University |
| Degree level: | Master of Research |
| Degree name: | MSc by Research |
| Supervisor: | Deganello, Davide |
| URI: | https://cronfa.swan.ac.uk/Record/cronfa63240 |
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| Abstract: |
This work presents the optimisation of an activated carbon ink using Ethyl Cellulose as a binder for application as electrodes in supercapacitors. Effect of variation in the concentration of Ethyl Cellulose binder was explored adopting a commercially available Activated carbon as reference. The result was that the 10% EC concentration led to the best performance compared to the 20% and 5% EC inks, with a specific capacitance of 62.3F/g at 1.4A/g. It was hypothesised that the 20% EC ink had too much binder, potentially clogging up the pores in the activated carbon, while the 5% EC ink did not have enough binder, causing decohesion of the ink from the substrate, which severely limited the performance of the electrode. As part of the work, a special carbon provided by the sponsoring company was also tested using the same 10% EC recipe only substituting the new carbon instead of the commercial one. Particle size analysis of this carbon showed that the particles had a larger disparity of sizes compared to the commercial activated carbon. This new carbon gave a better result of 82.7F/g at 1.4A/g even with the particle size disparity. |
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| Keywords: |
Supercapacitor, Ultracapacitor, Activated Carbon |
| College: |
Faculty of Science and Engineering |
| Funders: |
EPSRC, Enserv Power |