High-performance dual carbon Li-ion hybrid capacitor constructed from N, S - co-doped candle soot derived carbon nanoparticles anode and porous carbon cathode

Gopalakrishnan, Arthi and Sharma, Chandra Sekhar (2022) High-performance dual carbon Li-ion hybrid capacitor constructed from N, S - co-doped candle soot derived carbon nanoparticles anode and porous carbon cathode. Journal of Energy Storage, 55. pp. 1-12. ISSN 2352-152X

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Abstract

Lithium-ion capacitors (LICs) are one of the emerging and fast-growing energy storage devices due to their combination of high power/energy characteristics with long cyclic life. However, the kinetic imbalance between anode and cathode is a major hurdle in achieving high-performance LICs. In this work, we propose a dual carbon LIC device using a candle soot pollutant as the single source for the first time to derive a novel N, S-co-doped fractal-like carbon nanoparticles (NS-CSC) as anode and an activated co-doped porous carbon (NS-ACSC) as a cathode. The NS-CSC anode and NS-ACSC cathode half-cell demonstrate an outstanding reversible ion storage capacity of 2258 mAh g−1 and 125 mAh g−1 at 50 mA g−1, respectively. Benefitting from the doped carbon electrodes, the mass ratio optimized dual carbon NS-CSC//NS-ACSC (1:2) LIC device achieves high specific energy of 101.7 Wh kg−1 at 113 W kg−1, retaining a capacity of 81 % after 7000 cycles at 2 A g−1. Moreover, the fabricated LIC device powers a red light-emitting diode for a continuous 15 min, indicating its potential use in practical applications. This work emphasizes that the candle soot pollutant-derived carbon nanoparticles have the potential for use as an electrode in advanced energy storage devices. © 2022 Elsevier Ltd

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IITH Creators:
IITH CreatorsORCiD
Sharma, Chandra Shekharhttps://orcid.org/0000-0003-3821-1471
Item Type: Article
Additional Information: The authors acknowledge the financial support received from the Ministry of Textiles, Govt. of India under National Technical Textiles Mission.
Uncontrolled Keywords: Candle-soot; Carbon nanospheres; Dual carbon device; Heteroatom doping; Lithium-ion hybrid capacitor; Specific energy
Subjects: Chemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 19 Oct 2022 10:42
Last Modified: 19 Oct 2022 10:42
URI: http://raiith.iith.ac.in/id/eprint/11009
Publisher URL: http://doi.org/10.1016/j.est.2022.105788
OA policy: https://v2.sherpa.ac.uk/id/publication/35361
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