Title :
Study on synthesis kinetics of LiNi0.95Al0.05O2 prepared by solid phase method
Author :
Gu, Huimin ; Zhai, Yuchun ; Li, Hui ; Wang, Wei
Author_Institution :
Sch. of Mater. & Metall., Northeastern Univ., Shenyang, China
Abstract :
Using LiOH, NiO2 and Al2O3 as raw materials, the synthesis reaction of LiNi0.95Al0.05O2 was found occurring between 410°C to 475°C through analyzing the synthetic process by TG-DTA technique. The kinetic parameters of reaction were calculated by Starink model and Kissinger model, they are activation energy 207.63 kJ-mo-1, reaction order 1.61, reaction rate constant 0.74, and then the rate equation of reaction was given. XRD results indicate that the crystal structure of LiNi0.95Al0.05O2 belongs to hexagonal system and R3̅m space group, so LiNi0. 95A10.05O2 is suitable to be used as cathode materials for Li-ion batteries.
Keywords :
X-ray diffraction; crystal structure; differential thermal analysis; electrochemical electrodes; lithium compounds; nickel compounds; reaction kinetics; Kissinger model; Li-ion batteries; LiNi0.95Al0.05O2; Starink model; TG-DTA technique; XRD; activation energy; cathode materials; crystal structure; hexagonal system; kinetic parameters; solid phase method; synthesis kinetics; temperature 410 degC to 475 degC; Batteries; Equations; Heating; Kinetic theory; Lithium; Materials; Mathematical model; LiNi0.95Al0.05O2; TG -DTA analysis; apparent activation energy; synthesis kinetics;
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
DOI :
10.1109/RSETE.2011.5966269
