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Morphology engineering of self-assembled nanostructured CuCo2O4 anodes for lithium-ion batteries

Aqueel Ahmed, Abu Talha, Hou, Bo, Inamdar, Akbar I., Cha, SeungNam, Kim, Hyungsang and Im, Hyunsik 2019. Morphology engineering of self-assembled nanostructured CuCo2O4 anodes for lithium-ion batteries. Energy Technology 7 (7) , 1900295. 10.1002/ente.201900295

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Abstract

The electrochemical kinetics and output capacity of active electrode materials are significantly influenced by their surface structure. Herein, the template‐free morphological evolution of CuCo2O4 is reported, which is achieved by controlling the nucleation and growth rate during the hydrothermal process and evaluating its anode performance. The charge‐transfer resistance and specific surface area of the fabricated CuCo2O4 anode films are influenced by the viscosity of the solvent used. The optimized mesoporous nanosheet anode exhibits a high specific discharge capacity (1547 mAh g–1) at 0.1 A g–1 and an excellent restoring capability (≈91%); it retains 88% of the initial capacity with a coulombic efficiency of ≈99% even after 250 discharge–charge cycles. The superior lithium‐ion energy storage performance of this anode is due to its electrochemically favorable porous 2D morphology with large Brunauer–Emmett–Teller (BET) specific surface area and pore volume, resulting in enhanced Li+ storage and intercalation property.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Publisher: Wiley Online Library
ISSN: 2194-4288
Date of First Compliant Deposit: 19 February 2020
Last Modified: 10 Mar 2020 18:06
URI: http://orca.cf.ac.uk/id/eprint/129548

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