Wang QS, Sun JH, Chen DL, Chen CH (2009c) Comparison of the thermal decomposition kinetics for charged LiMn(2)O(4) by TG and C80 methods. Journal of Alloys and Compounds 468(1-2), 477-481. [In English]

Web link: http://dx.doi.org/10.1016/j.jallcom.2008.01.042

Keywords:

Lithium-ion battery, LiMn(2)O(4), Kinetics, C80 micro-calorimeter, Thermogravimetric analysis, lithium-ion batteries, phenyl diphenyl phosphate, electrolyte additives, stability, cathode, safety, calorimetry, behavior

Abstract: In order to disclose the decomposition kinetics of charged LiMn(2)O(4) used in lithium-ion batteries, thermogravimetric analyzed (TGA) and C80 micro-calorimeter were employed in this study. Three stages of weight loss were detected by TG and two main exothermic processes were detected by C80 micro-calorimeter for the charged LiMn(2)O(4). The chemical reaction kinetics is supposed to fit by an Arrhenius law, and then the activation energy is calculated as E(a) = 90.4 and 140.1 kJ mol(-1) based on TG and C80 data, respectively. And the C80 method shows more advantages in (C) 2008 Elsevier B.V. All rights reserved.