Cathode Materials for Hybrid Supercapacitors Based on Ozonated Reduced Graphene Oxide
| Autor: | A. A. Maltsev, Sergey D. Varfolomeev, D. Yu. Gryzlov, V. V. Podmasteryev, V. P. Mel’nikov, V. N. Kalinichenko, S. P. Chervonobrodov, S. D. Razumovskii, S. B. Bibikov |
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| Rok vydání: | 2018 |
| Předmět: |
Supercapacitor
Materials science Graphene Oxide chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Energy storage Cathode 0104 chemical sciences Electrochemical cell law.invention chemistry.chemical_compound chemistry Chemical engineering law Lithium Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | Doklady Physical Chemistry. 478:35-38 |
| ISSN: | 1608-3121 0012-5016 |
| DOI: | 10.1134/s0012501618020045 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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