Cathode Materials for Hybrid Supercapacitors Based on Ozonated Reduced Graphene Oxide

Cathode Materials for Hybrid Supercapacitors Based on Ozonated Reduced Graphene Oxide A carbon material capable of reversible electrochemical oxidation and reduction with relatively high electrical conductivity was prepared by ozonation of thermally reduced graphene oxide. The specific discharge energy for such materials used in lithium ion electrochemical cell cathodes with non-aqueous electrolytes (LP-71) can reach 540 W h/kg at 40 mA/g current, while the average specific discharge power is 11.5 kW/kg at 5 A/g current. The specific charge after 2500 charge/discharge cycles at 5 A/g current was at a level of 93% of the initial value. The obtained materials appear promising for the design of new electricity storage systems. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Doklady Physical Chemistry Springer Journals

Cathode Materials for Hybrid Supercapacitors Based on Ozonated Reduced Graphene Oxide

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Publisher
Pleiades Publishing
Copyright
Copyright © 2018 by Pleiades Publishing, Ltd.
Subject
Chemistry; Physical Chemistry
ISSN
0012-5016
eISSN
1608-3121
D.O.I.
10.1134/S0012501618020045
Publisher site
See Article on Publisher Site

Abstract

A carbon material capable of reversible electrochemical oxidation and reduction with relatively high electrical conductivity was prepared by ozonation of thermally reduced graphene oxide. The specific discharge energy for such materials used in lithium ion electrochemical cell cathodes with non-aqueous electrolytes (LP-71) can reach 540 W h/kg at 40 mA/g current, while the average specific discharge power is 11.5 kW/kg at 5 A/g current. The specific charge after 2500 charge/discharge cycles at 5 A/g current was at a level of 93% of the initial value. The obtained materials appear promising for the design of new electricity storage systems.

Journal

Doklady Physical ChemistrySpringer Journals

Published: Mar 14, 2018

References

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