Materials with nanostructure possessed some unique properties can improve their electrochemical performance in rechargeable batteries.Here,this study reports the preparation and electrochemical performance of TiNb24O62 nanofibers as anode material for lithium ion batteries.The results suggest that TiNb24O62 nanofibers sintered at 850℃ can exhibit excellent electrochemical performance since their nanofibers consist of nanoparticles with the size of about 80 nm.Small-sized active particles shorten the diffusion path for lithium ions,bringing enhanced electronic/ionic conductivity.As a result,the TiNb24O62 nanofibers can provide the capacity of 243.5 mAh·g-1 at 0.4 C and show good rate performance with the capacity of 142.0 mAh·g-1 at 5 C.
关键词
锂离子电池/负极材料/TiNb24O62/静电纺丝/纳米纤维/电化学性能
Key words
lithium ion batteries/anode material/TiNb24O62/electrospinning/nanofibers/electrochemical performance
维普
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