Non-isothermal reaction kinetics of lithium cobalt oxide
Journal
Journal of Alloys and Compounds
Journal Volume
476
Journal Issue
1¤ë2¤é
Pages
749-754
Date Issued
2009
Author(s)
Abstract
The reaction kinetics of the formation of LiCoO 2 during solid-state reaction was investigated using a non-isothermal approach at constant heating rates. The conversion ratios of the starting material of LiCoO 2 were calculated from thermogravimetric measurements. Analysis based on the differential method revealed that two diffusion-controlled models described the probable reaction mechanisms. The utilized integral method corroborated the fact that the reaction kinetics of the formation of LiCoO 2 was governed by Ginstling's diffusion-controlled reaction model. The activation energy of the formation of LiCoO 2 was calculated to be 163.6 kJ/mol. A combination of the differential and integral methods was demonstrated to effectively elucidate the reaction kinetics of ceramics and accurately determine the associated kinetic parameters. ? 2008 Elsevier B.V. All rights reserved.
Subjects
Lithium cobalt oxide
Lithium-ion batteries
Reaction kinetics
SDGs
Other Subjects
Conversion ratios; Differential methods; Diffusion-controlled models; Diffusion-controlled reactions; Integral methods; Lithium cobalt oxide; Lithium-ion batteries; Non isothermals; Non-isothermal reactions; Reaction mechanisms; Solid-state reactions; Starting materials; Thermogravimetric measurements; Activation energy; Association reactions; Cobalt; Free radical polymerization; Lithium; Lithium alloys; Lithium batteries; Lithium compounds; Reaction rates
Type
journal article