Thermal properties and kinetics study of charged LiCoO 2 by TG and C80 methods

Thermal properties and kinetics study of charged LiCoO 2 by TG and C80 methods The thermal stability of lithium-ion battery cathode could substantially affect the safety of lithium-ion battery. In order to disclose the decomposition kinetics of charged LiCoO 2 used in lithium ion batteries, thermogravimetric analyzer (TG) and C80 microcalorimeter were employed in this study. Four stages of mass losses were detected by TG and one main exothermic process was detected by C80 microcalorimeter for the charged LiCoO 2 . The chemical reaction kinetics is supposed to fit by an Arrhenius law, and then the activation energy is calculated as E a =148.87 and 88.87 kJ mol −1 based on TG and C80 data, respectively. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Thermal Analysis and Calorimetry Springer Journals

Thermal properties and kinetics study of charged LiCoO 2 by TG and C80 methods

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Publisher
Springer Journals
Copyright
Copyright © 2008 by Springer Science+Business Media, LLC.
Subject
Chemistry; Measurement Science, Instrumentation; Inorganic Chemistry ; Polymer Sciences ; Analytical Chemistry ; Physical Chemistry
ISSN
1388-6150
eISSN
1572-8943
D.O.I.
10.1007/s10973-007-8289-z
Publisher site
See Article on Publisher Site

Abstract

The thermal stability of lithium-ion battery cathode could substantially affect the safety of lithium-ion battery. In order to disclose the decomposition kinetics of charged LiCoO 2 used in lithium ion batteries, thermogravimetric analyzer (TG) and C80 microcalorimeter were employed in this study. Four stages of mass losses were detected by TG and one main exothermic process was detected by C80 microcalorimeter for the charged LiCoO 2 . The chemical reaction kinetics is supposed to fit by an Arrhenius law, and then the activation energy is calculated as E a =148.87 and 88.87 kJ mol −1 based on TG and C80 data, respectively.

Journal

Journal of Thermal Analysis and CalorimetrySpringer Journals

Published: May 1, 2008

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