Journal of the Korean Electrochemical Society (전기화학회지)

The Korean Electrochemical Society (한국전기화학회)
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Improved High Rate Capabilities of Composite Cathodes for Lithium Ion Batteries

  • Lee, Sang-Young (Department of Chemical Engineering, Kangwon National University) ;
  • Jeong, Yeon-Uk (School of Materials Science and Engineering, Kyungpook National University)
  • Published : 2008.11.30
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Abstract

In an attempt to achieve high rate capability of cell, a new composite cathode was prepared by mixing host compounds with MWCNTs and Super P carbon. Because MWCNTs generally have bundle-type morphologies, it is not easy to get completely separated form. Successful dispersion of divided small bundles between the host particles keeps electrochemical contacts among the particles and plays a significant role in the buffer action as a volume-change absorber. Relative amounts and distributions of the additives are important for design of the electrode for high power application of lithium ion batteries.

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