@article{Niu2016, 
author = {Chaojiang Niu and Meng Huang and Peiyao Wang and Jiashen Meng and Xiong Liu and Xuanpeng Wang and Kangning Zhao and Yang Yu and Yuzhu Wu and Chao Lin and Liqiang Mai},
title = {Carbon-supported and nanosheet-assembled vanadium oxide microspheres for stable lithium-ion battery anodes},
year = {2016},
journal = {Nano Research},
volume = {9},
number = {1},
pages = {128-138},
keywords = {microspheres, amorphous, lithium-ion battery, vanadium oxide, anodes},
url = {https://www.sciopen.com/article/10.1007/s12274-015-0896-6},
doi = {10.1007/s12274-015-0896-6},
abstract = {Naturally abundant transition metal oxides with high theoretical capacity have attracted more attention than commercial graphite for use as anodes in lithium-ion batteries. Lithium-ion battery electrodes that exhibit excellent electrochemical performance can be efficiently achieved via three-dimensional (3D) architectures decorated with conductive polymers and carbon. As such, we developed 3D carbon-supported amorphous vanadium oxide microspheres and crystalline V2O3 microspheres via a facile solvothermal method. Both samples were assembled with ultrathin nanosheets, which consisted of uniformly distributed vanadium oxides and carbon. The formation processes were clearly revealed through a series of time-dependent experiments. These microspheres have numerous active reaction sites, high electronic conductivity, and excellent structural stability, which are all far superior to those of other lithium-ion battery anodes. More importantly, 95% of the second-cycle discharge capacity was retained after the amorphous microspheres were subjected to 7, 000 cycles at a high rate of 2, 000 mA/g. The crystalline microspheres also exhibited a high-rate and long-life performance, as evidenced by a 98% retention of the second-cycle discharge capacity after 9, 000 cycles at a rate of 2, 000 mA/g. Therefore, this facile solvothermal method as well as unique carbon-supported and nanosheet-assembled microspheres have significant potential for the synthesis of and use in, respectively, lithium-ion batteries.}
}