Polyimide/carbon black composite nanocoating layers as a facile surface modification strategy for high-voltage lithium ion cathode materials

Jang Hoon Park, Ju Myung Kim, Jong Su Kim, Eun Gi Shim, Sang Young Lee

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Ion-conductive polyimide (PI)/electron-conductive carbon black (CB) composite nanocoating layers (referred to as "PI/CB coating layers") are presented as a facile and scalable surface modification strategy for high-voltage lithium ion cathode materials (here, LiCoO2 (LCO) is chosen as a model system). The PI/CB coating layers exhibit a unique synergistic effect (i.e., boosted electronic conduction (from CB networks) in conjunction with suppression of unwanted interfacial side reactions between delithiated LCO and the liquid electrolyte (due to PI nanothin films)), which thus exerts a beneficial influence on the electrochemical performance and thermal stability of high-voltage cells.

Original languageEnglish
Pages (from-to)12441-12447
Number of pages7
JournalJournal of Materials Chemistry A
Volume1
Issue number40
DOIs
Publication statusPublished - 2013 Oct 28

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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