Nitridated TiO2 hollow nanofibers as an anode material for high power lithium ion batteries
Nitridated TiO2 hollow nanofibers as an anode material for high power lithium ion batteries
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DOI：
10.1039/c1ee02333k
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发表时间：
2011-11-01
影响因子：
32.5
通讯作者：
Paik, Ungyu
中科院分区：
文献类型：
--
作者：
Han, Hyungkyu;Song, Taeseup;Paik, Ungyu
采用简单的静电纺丝方法和随后的氮化处理合成了TiO2纳米纤维、TiO2中空纳米纤维和氮化TiO2中空纳米纤维。在5 ℃下，与原始TiO 2纳米纤维相比，氮化TiO 2中空纳米纤维显示出两倍高的倍率性能。这种改善主要归因于较短的锂离子扩散长度和沿着氮化中空纳米纤维表面的高电子电导率。
TiO2 nanofibers, TiO2 hollow nanofibers, and nitridated TiO2 hollow nanofibers were synthesized using a simple electrospinning method and subsequent nitridation treatment. The nitridated TiO2 hollow nanofibers showed twice higher rate capability compared to that of pristine TiO2 nanofibers at 5 C. This improvement is mainly attributed to shorter lithium ion diffusion length and high electronic conductivity along the surface of nitridated hollow nanofibers.