Effect of in-situ derived sulfur dispersion on dual carbon lithium-ion capacitors

Bhattacharjee, Udita and Bhowmik, Subhajit and Ghosh, Shuvajit and Martha, Surendra Kumar (2022) Effect of in-situ derived sulfur dispersion on dual carbon lithium-ion capacitors. Journal of Power Sources, 542. pp. 1-12. ISSN 0378-7753

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Lithium-ion capacitors (LICs) bridge the performance gap between the energy-dense lithium-ion batteries and power-dense ultracapacitors. This work elucidates the study of a lithium-ion capacitor with two types of carbonaceous compounds as electrode materials from a single keratin biowaste source. The cysteinic disulfide linkages in keratin results in the derivation of the battery-type sulfur-disperse carbon electrode which shows a blend of Li-ion storage mechanisms resulting from the lithium-sulfur redox activity and lithium-insertion into the carbon host. Whereas, the adsorption characteristics of the heteroporous capacitive carbon make it an ideal candidate for the capacitor-type electrode. The lithium-ion capacitor full cell using prelithiation of sulfur-disperse carbon as the battery-type and heteroporous carbon as the capacitor-type electrode demonstrates energies of 178 and 52 Wh kg−1 at power of 366 and 22,500 W kg−1, respectively in 1:2 anode:cathode mass configuration. In contrast, the 1:1 mass configuration delivers energies of 118 and 72 Wh kg−1 at power of 275 and 13,750 W kg−1 respectively and cycles at 1 A g−1 current density with ∼70% capacitance retention till 5000 cycles. This study further emphasizes the effects of the redox reaction of the in situ sulfur nanoparticles in the performance and the mechanistic control of the LIC. © 2022 Elsevier B.V.

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IITH Creators:
IITH CreatorsORCiD
Martha, Surendra Kumarhttps://orcid.org/0000-0002-7762-7237
Item Type: Article
Additional Information: SKM acknowledges the DST-IISc Energy Storage Platform on Supercapacitors and Power Dense Devices (MECSP-2K17 program under project no. DST/TMD/MECSP/2K17/20, Govt. of India) for financial support to this project. UB, SB, and SG acknowledges DST-SERB (Sanction Order: CRG/2018/003543), DST/TMD/MECSP/2K17/20, and CSIR (09/1001(0067)/2019-EMR-I) for their fellowships respectively. We thank the FESEM facility (DST-FIST project no. (SR/FST/ETI421/2016)). We also thank Mr. Bhushan, and Dr. Vijay for helping with BET and XPS analyses respectively and my colleagues who have donated the raw material.
Uncontrolled Keywords: Electrochemical performance; Heteroporous carbon cathode; Keratin biowaste; Lithium storage mechanism; Lithium-ion capacitor; Sulfur-dispersed carbon anode
Subjects: Chemistry
Divisions: Department of Chemistry
Depositing User: . LibTrainee 2021
Date Deposited: 18 Jul 2022 08:59
Last Modified: 18 Jul 2022 08:59
URI: http://raiith.iith.ac.in/id/eprint/9759
Publisher URL: http://doi.org/10.1016/j.jpowsour.2022.231768
OA policy: https://v2.sherpa.ac.uk/id/publication/14078
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