Coaxial electrospun Si/C-C core-shell composite nanofibers as binder-free anodes for lithium-ion batteries
作者： Ying Li , Guanjie Xu , Yingfang Yao , Leigang Xue , Meltem Yanilmaz
DOI: 10.1016/J.SSI.2014.02.003
关键词:
摘要: Abstract Si/C–C core–shell nanofiber structure was designed by dual nozzle coaxial electrospinning and subsequent carbonization. This has Si/C composite as the core carbon shell. Used an anode in lithium-ion batteries, shell can help buffer large volume expansion/contraction of during charge/discharge restrain capacity fading caused mechanical failure active material. Results showed that after 50 cycles, discharge nanofibers 63% higher than retention increased from 48.6 to 72.4%. It is, therefore, demonstrated are promising material with reversible good cycling stability.
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