Graphene Anchored with Co3O4 Nanoparticles as Anode of Lithium Ion Batteries with Enhanced Reversible Capacity and Cyclic Performance

作者：Zhong‐Shuai Wu, Wencai Ren, Lei Wen, Libo Gao, Jinping Zhao, Zongping Chen, Guangmin Zhou, Feng Li, Hui–Ming Cheng · 发表于：ACS Nano · 年份：2010 · DOI：10.1021/nn100740x · 被引用次数：2446 · 研究领域：Advancements in Battery Materials、Graphene research and applications、Supercapacitor Materials and Fabrication

We report a facile strategy to synthesize the nanocomposite of Co(3)O(4) nanoparticles anchored on conducting graphene as an advanced anode material for high-performance lithium-ion batteries. The Co(3)O(4) nanoparticles obtained are 10-30 nm in size and homogeneously anchor on graphene sheets as spacers to keep the neighboring sheets separated. This Co(3)O(4)/graphene nanocomposite displays superior Li-battery performance with large reversible capacity, excellent cyclic performance, and good rate capability, highlighting the importance of the anchoring of nanoparticles on graphene sheets for maximum utilization of electrochemically active Co(3)O(4) nanoparticles and graphene for energy storage applications in high-performance lithium-ion batteries.