Holey graphitic carbon nano-flakes with enhanced storage characteristics scaled to a pouch cell supercapacitor

Ojha, Manoranjan and Liu, Xinhua and Wu, Billy and Deepa, Melepurath (2021) Holey graphitic carbon nano-flakes with enhanced storage characteristics scaled to a pouch cell supercapacitor. Fuel, 285. p. 119246. ISSN 00162361

Full text not available from this repository. (Request a copy)


Supercapacitors with holey graphitic carbon nano-flakes (HGCNF) capable of demonstrating large specific capacitance (SC) have been developed for the first time. The unique approach of applying an additional conducting layer of carbon fabric (CF) coated with HGCNF at both half-cells provides a significant enhancement in SC, from 323 to 1142 F g−1, for the half cell and from 8 to 487 F g−1 for the symmetric supercapacitor, when the architecture is modified from Ni/HGCNF//HGCNF/Ni to Ni/HGCNF/CF/HGCNF//HGCNF/CF/HGCNF/Ni. HGCNF is composed of macro- and meso- pores enabling facile and deep penetration of electrolyte ions across the cross-section, ensuring maximum utilization at high current densities. Peak energy and power densities of 68 Wh kg−1 and 2.5 kW kg−1, achieved for the Ni/HGCNF/CF/HGCNF//HGCNF/CF/HGCNF/Ni cell, are superior to many reported nano-carbons, including HGCNF/Ni or HGCNF/CF symmetric cells. The corresponding 3 V pouch cell, showed an excellent SC of 80 F g−1.

[error in script]
IITH Creators:
IITH CreatorsORCiD
Ojha, ManoranjanUNSPECIFIED
Item Type: Article
Uncontrolled Keywords: Conducting layers; Deep penetration; Enhanced storage; Graphitic carbons; High current densities; Macro- and meso-pores; Power densities; Specific capacitance
Subjects: Chemistry
Chemical Engineering
Divisions: Department of Chemistry
Depositing User: . LibTrainee 2021
Date Deposited: 17 Jul 2021 04:27
Last Modified: 14 Mar 2022 06:42
URI: http://raiith.iith.ac.in/id/eprint/8378
Publisher URL: http://doi.org/10.1016/j.fuel.2020.119246
OA policy: https://v2.sherpa.ac.uk/id/publication/16905
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 8378 Statistics for this ePrint Item