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Publication Type : Journal Article
Thematic Areas : Nanosciences and Molecular Medicine
Publisher : Materials Research Express, IOP Publishing,
Source : Materials Research Express, IOP Publishing, Volume 6, Number 12, p.125543 (2020)
Campus : Kochi
School : Center for Nanosciences
Center : Amrita Center for Nanosciences and Molecular Medicine Move, Nanosciences
Department : Nanosciences and Molecular Medicine
Year : 2020
Abstract : Attracted by high theoretical capacity, CuO has emerged as a promising anode for Li-ion batteries. However, poor electronic conductivity, cycling instability and first cycle irreversibility is still a hindrance for end-application. To address these concerns in battery applications, for the first time, cobalt induced CuO nanobelt-like morphology is reported. Cobalt concentration dependent nanoplate morphology, reversibility and cycling stability have been investigated. Combined XPS and energy dispersive X-ray analysis indicates that the cobalt exist more in the bulk and very minimally on the surface. The 6 wt% Co in CuO nanobelt-like morphology showed excellent improvement in performance delivering 665 mAh g−1 at the end of 80 cycles at 1 C rate along with first cycle Coulombic efficiency of 66.1%. Impedance analysis confirms Co-CuO electrodes exhibited lower charge transfer resistance and better kinetics compared to bare-CuO. This electrode was paired with LiMn2O4 cathode as full-cell Li-ion battery, which retained 385 mAh g−1 of capacity at the end of 100 cycles at 1 C rate.
Cite this Research Publication : A. Susan Jose, Binitha Gangaja, Shantikumar V Nair, and Dr. Dhamodaran Santhanagopalan, “Influence of cobalt concentration on CuO nanoplates morphology and its superior performance as Li–ion battery anode”, Materials Research Express, vol. 6, p. 125543, 2020.