Characterization of electrochemical double layer capacitor electrode using self-discharge measurements and modeling
A simple protocol to characterize the electrochemical double layer capacitors (EDLCs) using self-discharge (open circuit discharge) data and a three-branch electrical model is presented. The method relies on recording the self-discharge data of EDLCs and using it to estimate the parametric values of...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English English |
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Elsevier
2023
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/37934/1/Characterization%20of%20electrochemical%20double%20layer%20capacitor%20electrode%20.pdf http://umpir.ump.edu.my/id/eprint/37934/2/Characterization%20of%20electrochemical%20double%20layer%20capacitor%20electrode_FULL.pdf |
| _version_ | 1825815023503540224 |
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| author | Kunwar, Ria Pal, Bhupender Izan Izwan, Misnon Hamdan, Daniyal Zabihi, Fatemeh Yang, Shengyuan Sofer, Zděnek Yang, Chun-Chen Rajan, Jose |
| author_facet | Kunwar, Ria Pal, Bhupender Izan Izwan, Misnon Hamdan, Daniyal Zabihi, Fatemeh Yang, Shengyuan Sofer, Zděnek Yang, Chun-Chen Rajan, Jose |
| author_sort | Kunwar, Ria |
| collection | UMP |
| description | A simple protocol to characterize the electrochemical double layer capacitors (EDLCs) using self-discharge (open circuit discharge) data and a three-branch electrical model is presented. The method relies on recording the self-discharge data of EDLCs and using it to estimate the parametric values of the variables in the model (time constants, maximum voltage, resistances, and capacitances). Porous carbon and metal oxide electrodes in three choice electrolytes are used for the experiments and the simulations are performed using MATLAB Simulink platform. The simulated and experimental self-discharge data are in close agreement for the EDLC storage mode but not for the battery type storage. The results are further validated by simulating the galvanostatic charge discharge (GCD) cycling data and fitting them to the experimental GCD of the assembled devices with high accuracies. The model presented here thus enables determination of charge storage parameters as well as whether a device is capacitive from a single self-discharge data, thereby providing an excellent tool to characterize EDLCs for both academia and industry. |
| first_indexed | 2024-03-06T13:07:16Z |
| format | Article |
| id | UMPir37934 |
| institution | Universiti Malaysia Pahang |
| language | English English |
| last_indexed | 2024-03-06T13:07:16Z |
| publishDate | 2023 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | UMPir379342023-07-05T04:03:57Z http://umpir.ump.edu.my/id/eprint/37934/ Characterization of electrochemical double layer capacitor electrode using self-discharge measurements and modeling Kunwar, Ria Pal, Bhupender Izan Izwan, Misnon Hamdan, Daniyal Zabihi, Fatemeh Yang, Shengyuan Sofer, Zděnek Yang, Chun-Chen Rajan, Jose TK Electrical engineering. Electronics Nuclear engineering A simple protocol to characterize the electrochemical double layer capacitors (EDLCs) using self-discharge (open circuit discharge) data and a three-branch electrical model is presented. The method relies on recording the self-discharge data of EDLCs and using it to estimate the parametric values of the variables in the model (time constants, maximum voltage, resistances, and capacitances). Porous carbon and metal oxide electrodes in three choice electrolytes are used for the experiments and the simulations are performed using MATLAB Simulink platform. The simulated and experimental self-discharge data are in close agreement for the EDLC storage mode but not for the battery type storage. The results are further validated by simulating the galvanostatic charge discharge (GCD) cycling data and fitting them to the experimental GCD of the assembled devices with high accuracies. The model presented here thus enables determination of charge storage parameters as well as whether a device is capacitive from a single self-discharge data, thereby providing an excellent tool to characterize EDLCs for both academia and industry. Elsevier 2023-03 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/37934/1/Characterization%20of%20electrochemical%20double%20layer%20capacitor%20electrode%20.pdf pdf en http://umpir.ump.edu.my/id/eprint/37934/2/Characterization%20of%20electrochemical%20double%20layer%20capacitor%20electrode_FULL.pdf Kunwar, Ria and Pal, Bhupender and Izan Izwan, Misnon and Hamdan, Daniyal and Zabihi, Fatemeh and Yang, Shengyuan and Sofer, Zděnek and Yang, Chun-Chen and Rajan, Jose (2023) Characterization of electrochemical double layer capacitor electrode using self-discharge measurements and modeling. Applied Energy, 334 (120658). pp. 1-12. ISSN 0306-2619. (Published) https://doi.org/10.1016/j.apenergy.2023.120658 https://doi.org/10.1016/j.apenergy.2023.120658 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Kunwar, Ria Pal, Bhupender Izan Izwan, Misnon Hamdan, Daniyal Zabihi, Fatemeh Yang, Shengyuan Sofer, Zděnek Yang, Chun-Chen Rajan, Jose Characterization of electrochemical double layer capacitor electrode using self-discharge measurements and modeling |
| title | Characterization of electrochemical double layer capacitor electrode using self-discharge measurements and modeling |
| title_full | Characterization of electrochemical double layer capacitor electrode using self-discharge measurements and modeling |
| title_fullStr | Characterization of electrochemical double layer capacitor electrode using self-discharge measurements and modeling |
| title_full_unstemmed | Characterization of electrochemical double layer capacitor electrode using self-discharge measurements and modeling |
| title_short | Characterization of electrochemical double layer capacitor electrode using self-discharge measurements and modeling |
| title_sort | characterization of electrochemical double layer capacitor electrode using self discharge measurements and modeling |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://umpir.ump.edu.my/id/eprint/37934/1/Characterization%20of%20electrochemical%20double%20layer%20capacitor%20electrode%20.pdf http://umpir.ump.edu.my/id/eprint/37934/2/Characterization%20of%20electrochemical%20double%20layer%20capacitor%20electrode_FULL.pdf |
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