An Overview on the Advances of LiCoO 2 Cathodes for Lithium‐Ion Batteries

Abstract LiCoO 2 , discovered as a lithium‐ion intercalation material in 1980 by Prof. John B. Goodenough, is still the dominant cathode for lithium‐ion batteries (LIBs) in the portable electronics market due to its high compacted density, high energy density, excellent cycle life and reliability. In order to satisfy the increasing energy demand of portable electronics such as smartphones and laptops, the upper cutoff voltage of LiCoO 2 ‐based batteries has been continuously raised for achieving higher energy density. However, several detrimental issues including surface degradation, damages induced by destructive phase transitions, and inhomogeneous reactions could emerge as charging to a high voltage…

• SA
  Science and Technology Commission of Shanghai Municipality

  Award: 18010500300
• HE
  Higher Education Discipline Innovation Project

  Award: D16002
• NK
  National Key Research and Development Program of China

  Award: 2018YFB0905400