Enhanced Electrochemical performance at high temperature of Cobalt Oxide/Reduced Graphene Oxide Nanocomposites and its application in lithium-ion batteries

Yasmin Mussa; Faheem Ahmed; Hatem Abuhimd; Muhammad Arsalan; Edreese Alsharaeh

doi:10.1038/s41598-018-37032-5

Enhanced Electrochemical performance at high temperature of Cobalt Oxide/Reduced Graphene Oxide Nanocomposites and its application in lithium-ion batteries

Sci Rep. 2019 Jan 10;9(1):44. doi: 10.1038/s41598-018-37032-5.

Authors

Yasmin Mussa¹, Faheem Ahmed¹, Hatem Abuhimd², Muhammad Arsalan³, Edreese Alsharaeh⁴

Affiliations

¹ College of Science and General Studies, Alfaisal University, P.O. Box 50927, Riyadh, 11533, Saudi Arabia.
² National Nanotechnology Center, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia.
³ EXPEC Advanced Research Center, Saudi Aramco, P.O. Box 5000, Dhahran, 31311, Saudi Arabia.
⁴ College of Science and General Studies, Alfaisal University, P.O. Box 50927, Riyadh, 11533, Saudi Arabia. ealsharaeh@alfaisal.edu.

Abstract

We report a microwave irradiation method for the preparation of reduced graphene oxide (RGO) based Co₃O₄ nanocomposites as anodes for lithium-ion (li-ion) batteries. The Co₃O₄/RGO nanocomposites displayed good electrochemical behavior as anodic materials for li-ion batteries when compared to pure Co₃O₄. The Co₃O₄/RGO nanocomposites with low RGO content resulted in stable electrochemical performance with 100% coulombic efficiency at a high current density of 500 mA/g for 50 cycles. The enhanced capacity of the Co₃O₄/RGO nanocomposites is due to the incorporation of RGO, which resulted in a four times larger surface area than that of Co₃O₄. This increased surface area could facilitate the absorption of more lithium ions, resulting in excellent electrochemical performance. Interestingly, the novelty of this work is that the designed li-ion batteries showed stable electrochemical performance even at a high temperature of 100 °C, which might be useful for rechargeable battery applications in a wide temperature range.