Electrospun porous carbon nanofibers as lithium ion battery anodes

Yi Te Peng, Chieh Tsung Lo

研究成果: Article同行評審

45 引文 斯高帕斯(Scopus)

摘要

Porous carbon nanofibers were fabricated by electrospinning in a precursor solution containing polyacrylonitrile (PAN), polymethyl methacrylate (PMMA), and N,N-dimethylformamide. During thermal treatment, PMMA decomposition caused nanofibers to transform from a solid to a porous structure. Removal of PMMA also decreased the fiber diameter and increased the pore volume of the carbon nanofibers, resulting in a substantial increase in specific surface area. We used these web-type fiber films directly without a binder as an anode for lithium ion batteries. The electrochemical performance of these 5:5 PAN/PMMA-derived carbon nanofibers exhibited a discharge capacity of 446 mAh/g under a current density of 150 mA/g, which was approximately two times that of the neat PAN-derived carbon nanofibers. Additionally, the discharge capacity retention of the 5:5 PAN/PMMA-derived carbon nanofibers was nearly the same as that of the neat PAN-derived carbon nanofibers, indicating favorable cycle stability.

原文English
頁(從 - 到)3401-3410
頁數10
期刊Journal of Solid State Electrochemistry
19
發行號11
DOIs
出版狀態Published - 2015 十一月 1

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 凝聚態物理學
  • 電化學
  • 電氣與電子工程

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