Carbon Nano-Onions Embedded CuO Nanosheets: An Excellent Stable Anode Material for Lithium Ion Battery

5th Annual International Conference on Material Engineering and Application

工业技术（总论）;材料科学

Hao, Zhongjing^1^2 ; Qin, Meng^1 ; Li, Yueming^1 ; Lv, Xiaoju^2 ; Zhang, Dafeng^2 ; Wang, Qiushi^2

State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao

066004, China^1

Key Lab. of Photochemical Conversion and Optoelectron. Mat. and HKU-CAS Jt. Lab. on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing

100190, China^2

关键词: Anode material for lithium ion batteries;    Carbon nano onions;    Discharge capacities;    Electrochemical performance;    Hydrothermal methods;    Lithium-ion battery anodes;    Preparation conditions;    Specific capacities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/484/1/012005/pdf
DOI  :  10.1088/1757-899X/484/1/012005

来源: IOP

【 摘 要 】

Carbon nano-onions embedded CuO nanosheets was synthesized by hydrothermal method and this report reports the application of carbon nano-onions embedded CuO nanosheets in lithium ion battery anode materials. The introduction of carbon nano-onions leads to improved electrochemical performance. When applied to potential anode materials for lithium-ion batteries, the novel carbon nano-onions embedded CuO nanosheets deliver reversible discharge capacity of 709.7 mAh g-1 at 0.1 A g-1 and specific capacity of 167 mAh g-1 at 5 A g-1, much higher than those of the pure CuO nanosheets with same preparation conditions. In this paper, we demonstrate that the compositing of carbon nano-onions embedded CuO nanosheets is able to improve the performance significantly.