Journal of Inorganic Materials

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Thermal Stability of Nickel-based Lithium Transition Metal Oxides as the Cathode Materials for Lithium-ion Batteries

YUAN Rong-Zhong; QU Mei-Zhen; YU Zuo-Long   

  1. Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041; China
  • Received:2002-08-19 Revised:2002-09-23 Published:2003-09-20 Online:2003-09-20

Abstract: Lithium nickel oxide as the positive electrode of rechargeable lithium ion batteries with a high
energy density and lower cost has aroused more and more interests. However, LiNiO2 has a few disadvantages which prevent this material
from being used as a cathode material for rechargeable lithium ion batteries. Poor thermal stability is one of its major disadvantages.
In this paper, the progress in recent researches on the thermal behavior of full-lithiated, electrochemically delithiated Li1-xNiO2
and the thermal decomposition mechanism were reviewed, and the studies for developing nickel-based lithium transition metal oxides with improved thermal
stability as cathode materials were summarized.

Key words: Li-ion batteries, cathodes, lithium nickel oxide, thermal stability

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