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NiCo2O4 bricks as anode materials with high lithium storage property

Published online by Cambridge University Press:  08 April 2019

Hui Wang
Affiliation:
School of Physics and Technology, and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan430072, China.
Youning Gong
Affiliation:
School of Physics and Technology, and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan430072, China.
Delong Li
Affiliation:
School of Physics and Technology, and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan430072, China.
Qiang Fu
Affiliation:
Center for Electron Microscopy, Wuhan University, Wuhan430072, China.
Chunxu Pan*
Affiliation:
School of Physics and Technology, and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan430072, China. Center for Electron Microscopy, Wuhan University, Wuhan430072, China.
*
*E-mail: [email protected] (C. Pan); Tel: +86-27-68752481 ext. 8031
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Abstract

In this study, a novel brick-like NiCo2O4 material was synthesized via a facile hydrothermal method. The as-prepared NiCo2O4 material possessed high porosity with the BET specific surface area of 58.33 m2/g, and its pore size distribution was in a range of 5-15 nm with a dominant pore diameter of 10.7 nm. The electrochemical performance of the NiCo2O4 was further investigated as anode material for lithium-ion battery. The NiCo2O4 anode possessed a high lithium storage capacity up to 2353.0 mAh/g at the current density of 100 mA/g. Even at the high rate of 1 A/g, a reversible capacity of ∼600 mAh/g was still retained, and an average discharge capacity of ∼1145 mAh/g could be recovered when the current density was reduced back to 150 mA/g. Due to the simple and cost-effective process, the NiCo2O4 bricks anode material shows great potential for further large-scale applications on the area of lithium-ion battery.

Type
Articles
Copyright
Copyright © Materials Research Society 2019 

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Footnotes

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Hui Wang and Youning Gong contribute equally to the article.

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