中國有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 12 No. 1 February 2002 |
Synthesis and thermal decomposition
kinetics of LiNiO2
kinetics of LiNiO2
TIAN Yan-wen(田彥文),LI Hui(李 輝),ZHANG Xin(張 新),
ZHAI Yu-chun(瞿玉春),GAO Hong(高 虹)
ZHAI Yu-chun(瞿玉春),GAO Hong(高 虹)
（School of Materials and Metallurgy,Northeastern University,
Shenyang 110004,China）
Abstract:A layered LiNiO2 with high crystallinity was synthesized by sintering the finely prepared mixture of lithium hydroxide and nickel hydroxide in the oxygen atmosphere. The electro-chemical properties of LiNiO2 show that it has a reversible capacity of more than 168mA·h·g-1.It was found that with increasing temperature,LiNiO2 decomposed in air followed with three reaction stages, the apparent activation energies were 747.18±1.0kJ·mol-1,932.46±1.0kJ·mol-1 and 1126.97 ±1.0kJ·mol-1 respectively,and the kinetic equations of the three reaction stages were obtained.
Key words: lithiumion batteries;LiNiO2;electrochemistry;decomposition;kinetics
