中文摘要：

有高理论的能力的自然地丰富的转变金属氧化物在锂离子电池用作阳极比商业石墨吸引了更多的注意。展出优秀电气化学的性能的锂离子电池电极能高效地被完成经由三维(3D ) 体系结构与传导性的聚合物和碳装饰了。因此，我们开发了 3D 支持碳的非结晶的钒氧化物 microspheres 和水晶的 V ₂ 经由一个灵巧的 solvothermal 方法的 O ₃ microspheres。两件样品与 ultrathin nanosheets 被装配，它由一致地分布式的钒氧化物和碳组成了。形成过程清楚地通过一系列时间依赖者实验被揭示。这些 microspheres 有众多的活跃反应地点，高电子的传导性，和优秀结构的稳定性，它都比另外的锂离子电池阳极的那些远优异。更重要地，在非结晶的 microspheres 以 2,000 mA/g 的高率受到 7,000 个周期以后， 95% 秒周期分泌物能力被保留。水晶的 microspheres 也展出了高率、长寿的表演，以 2,000 mA/g 的率在 9,000 个周期以后由秒周期分泌物能力的 98% 保留证实了。因此，这个灵巧的 solvothermal 方法以及唯一的支持碳、装配 nanosheet 的 microspheres 为合成和使用有重要潜力在，分别地锂离子电池。

英文摘要：

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 V203 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.