文献类型：期刊文献

英文题名：Ultrafine V2O3 Nanowire Embedded in Carbon Hybrids with Enhanced Lithium Storage Capability

作者：Jiang, Hao[1];Jia, Guiqi[1];Hu, Yanjie[1];Cheng, Qilin[1];Fu, Yao[1];Li, Chunzhong[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

年份：2015

卷号：54

期号：11

起止页码：2960

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20151300695205);WOS:【SCI-EXPANDED(收录号:WOS:000351972600014)】；

基金：This work was supported by the National Natural Science Foundation of China (Grants 21206043, 21236003, 21371057), the Basic Research Program of Shanghai (Grants 13NM1400801, 14JC1490700), the 111 Project (Grant B14018), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Transition metals - Carbon - Lithium-ion batteries - Anodes - Transition metal oxides

摘要：Compared to other transitiOn metal oxides, V2O3 with a higher conductivity has attracted intense attention in energy storage fields. TO further improve its rate capability and Cycling stability, we demonstrate the synthesis Of carbon-encapsulated ultrafine V2O3 nanowires (V2O3@C NWs) hybrids. The optimized V2O3@C Nws hybrids, when applied as anode materials for lithium-ion batteries (LIB), deliver a high specific capacity of 985 mA h g(-1) at 100 mA which is higher than V2O3 nanopartides (V2O3 NPs, 248 mA h g(-1)) and even 2.6 times higher than graphite anodes: More significantly, they also exhibit remarkably enhanced rate capability (519 mA h CI at 5000 g(-1)) and long cycle life (860 mA h g(-1) at 1000 mA after 300 cycles). Such fascinating electrochetnical performance is mainly attributed to the liiiiform coating of carbon and their ultrafine nanostrixture, which can further improve the conductivity arid enrich the eiettrothenlical active sits.