Polymer-graphene nanocomposites as ultrafast-charge and -discharge cathodes for rechargeable lithium batteries

Zhiping Song, Terrence Xu, Mikhail L. Gordin, Ying Bing Jiang, In Tae Bae, Qiangfeng Xiao, Hui Zhan, Jun Liu, Donghai Wang

Research output: Contribution to journalArticle

298 Scopus citations

Abstract

Electroactive polymers are a new generation of "green" cathode materials for rechargeable lithium batteries. We have developed nanocomposites combining graphene with two promising polymer cathode materials, poly(anthraquinonyl sulfide) and polyimide, to improve their high-rate performance. The polymer-graphene nanocomposites were synthesized through a simple in situ polymerization in the presence of graphene sheets. The highly dispersed graphene sheets in the nanocomposite drastically enhanced the electronic conductivity and allowed the electrochemical activity of the polymer cathode to be efficiently utilized. This allows for ultrafast charging and discharging; the composite can deliver more than 100 mAh/g within just a few seconds.

Original languageEnglish (US)
Pages (from-to)2205-2211
Number of pages7
JournalNano letters
Volume12
Issue number5
DOIs
StatePublished - May 9 2012

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

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    Song, Z., Xu, T., Gordin, M. L., Jiang, Y. B., Bae, I. T., Xiao, Q., Zhan, H., Liu, J., & Wang, D. (2012). Polymer-graphene nanocomposites as ultrafast-charge and -discharge cathodes for rechargeable lithium batteries. Nano letters, 12(5), 2205-2211. https://doi.org/10.1021/nl2039666