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Author

Lee, Sang-Young
Energy Soft-Materials Lab (ESML)
Research Interests
  • Soft Materials for Energy Storage/ Conversion Systems

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

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Title
Polyimide/carbon black composite nanocoating layers as a facile surface modification strategy for high-voltage lithium ion cathode materials
Author
Park, Jang-HoonKim, Jang-HoonKim, Jong-SuShim, Eun-GiLee, Sang-Young
Keywords
THERMAL-STABILITY; ELECTROCHEMICAL PERFORMANCE; SECONDARY BATTERIES; LICOO2; CARBON; FILMS; SAFE
Issue Date
201310
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY A, v.1, no.40, pp.12441 - 12447
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.
URI
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DOI
http://dx.doi.org/10.1039/c3ta11163f
ISSN
2050-7488
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