Issue 17, 2017, Issue in Progress
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RSC Advances

Self-assembly of porous CuO nanospheres decorated on reduced graphene oxide with enhanced lithium storage performance†

Gangyong Li,a   Mingjun Jing,*a   Zhengu Chen,a   Binhong He,a   Minjie Zhoua  and  Zhaohui Hou ORCID logo *a  

* Corresponding authors

a School of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
E-mail: zhaohuihou@126.com, jingmingjun86@163.com

Abstract

This work aims at enhancing the cycling stability and rate capability of a CuO-based anode material for lithium-ion batteries. Here porous CuO nanospheres decorated on reduced graphene oxide (CuO-NSs/RGO) have been synthesized by a two-step thermal treatment procedure. The porous CuO nanospheres are assembled by ultra-fine nanoparticles of CuO with a size of ∼15 nm. Such a porous nature endows many merits, improving the lithium storage performances of the CuO-NSs/RGO composite used as a lithium-ion battery anode. The porous CuO-NSs/RGO composite demonstrates superior reversible capacity (753.3 mA h g−1 at 100 mA g−1) and good cycling stability (616.2 mA h g−1 after 200 cycles at 500 mA g−1). In particular, it exhibits an outstanding high-rate capability of 327.3 mA h g−1 even at 5 A g−1. The feasibility of the CuO-NSs/RGO composite as an anode material was further investigated with a commercial LiFePO4 (LFP) cathode for lithium-ion batteries.

Graphical abstract: Self-assembly of porous CuO nanospheres decorated on reduced graphene oxide with enhanced lithium storage performance

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Article information

DOI
https://doi.org/10.1039/C6RA28724G
Article type
Paper
Submitted
26 Dec 2016
Accepted
01 Feb 2017
First published
07 Feb 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 10376-10384

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Self-assembly of porous CuO nanospheres decorated on reduced graphene oxide with enhanced lithium storage performance

G. Li, M. Jing, Z. Chen, B. He, M. Zhou and Z. Hou, RSC Adv., 2017, 7, 10376 DOI: 10.1039/C6RA28724G

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