Hybrid nanoarchitecture of TiO2 nanotubes and graphene sheet for advanced lithium ion batteries
A novel hybrid nanoarchitecture of titanium dioxide(TiO2)nanotubes/graphene was synthetized through a facile two-step hydrothermal route.The anatase TiO2 nanotubes with a diameter of about 20 nm show a net-like structure and high dispersion on the graphene nanosheets.The as-prepared sample(TOG2)exhibits a high average capacity of 410 mAh g-1 at 0.1 A g-1,superior cycling stability with negligible capacity fade over 300 cycles and rate capability of 192 mAh g-1 at 1 A g-1 The enhanced electrochemical properties can be attributed to its unique hybrid structure.One-dimensional hollow tubular structure of TiO2 provides numerous open channels for electrolyte to access and facilitate the diffusion of lithium ions.In addition,the graphene sheets are favorable for the fast electron transport within the electrode.as well as keep the structural integrity during long-term cycling processes.
Jiage Yu Hui Huang Yongping Gan Yang Xia Chu Liang Jun Zhang Xinyong Tao Wenkui Zhang
College of Materials Science and Engineering,Zhejiang University of Technology Hangzhou,China
国内会议
2017中国(赣州)国际新能源汽车动力电池高峰论坛暨第九届中国储能与动力电池及其关键材料学术研讨与技术交流会
江西赣州
英文
1-1
2017-10-13（万方平台首次上网日期，不代表论文的发表时间）