Superior Electrochemical Performance of Two-Dimensional RGO/Cu/Cu 2 O Composite as Anode Material for Lithium-Ion Batteries

Muhammad Usman Hameed, Patrizia Bocchetta, Shabnam Shahida, Faizah Altaf, Ashfaq Ahmed and Abdul Majid Khan
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Muhammad Usman Hameed: Department of Chemistry, University of Poonch, Rawalakot 12350, Azad Kashmir, Pakistan
Patrizia Bocchetta: Department of Innovation Engineering, University of Salento, Edificio La Stecca, Via per Monteroni, 73100 Lecce, Italy
Shabnam Shahida: Department of Chemistry, University of Poonch, Rawalakot 12350, Azad Kashmir, Pakistan
Faizah Altaf: Department of Chemistry, Women University of Azad Jammu and Kashmir, Bagh 12500, Azad Jammu & Kashmir, Pakistan
Ashfaq Ahmed: Department of Chemistry, Women University of Azad Jammu and Kashmir, Bagh 12500, Azad Jammu & Kashmir, Pakistan
Abdul Majid Khan: Department of Chemistry, Women University of Azad Jammu and Kashmir, Bagh 12500, Azad Jammu & Kashmir, Pakistan

Energies, 2022, vol. 15, issue 3, 1-10

Abstract: In recent years, graphene has attracted the interest of many researchers working on LIB anode materials owing to its unique 2D structure, thermal stability, and fast electron transfer. In this work, RGO/Cu/Cu 2 O nanocomposites were synthesized through a hydrothermal procedure. The as-prepared nanocomposites exhibited a high lithium storage capacity with improved cycling stability and great rate performance, i.e., the discharge capacity was 371.8 mAh/g after 100 cycles at a current density of 500 mA/g. These excellent properties were associated with the sheet structure symmetry of graphene enriched with the multifunctional Cu-Cu 2 O component, which prevented aggregation and accommodated the volume changes of the anode material during the charge–discharge tests. The RGO/Cu/Cu 2 O composite conferred to the LIB anode the ability to resist electrode cracking. The approach proposed in this paper can be also generalized for the synthesis of other carbon-based anode materials for LIBs.

Keywords: copper/copper oxide; reduced graphene oxide; nanocomposite; anode material; LIBs (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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