Carbon Nano-Onions Embedded CuO Nanosheets: An Excellent Stable Anode Material for Lithium Ion Battery
[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.
[发布日期] [发布机构] 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
[效力级别] 材料科学 [学科分类]
[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 [时效性]
