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Citation: Zhao Ming-Shu, Zhai Yu-Chun, Tian Yan-Wen. Study on Kinetics of Synthesizing Spinel LiMn₂O₄ for Lithium-ion Battery Cathode[J]. Acta Physico-Chimica Sinica, ;2002, 18(02): 188-192. doi: 10.3866/PKU.WHXB20020220 shu

Study on Kinetics of Synthesizing Spinel LiMn₂O₄ for Lithium-ion Battery Cathode

1.
School of Material and Metallurgy, Northeastern University, Shenyang　110004

Received Date: 23 July 2001
Available Online: 15 February 2002

The reaction processes including synthesis of LiMn2O4 with LiOH•H2O and MnO2 were studied by means of DTA under atmosphere pressure, and the result obtained could be applied as an important theoretical basis for preparing LiMn2O4. Table 1～3 show the activation energies of each reaction process obtained by using Doyle-Ozawa method and Kissinger method as follows : 66.3, 72.6, 128.1 and 113.9 kJ•mol－1. Reaction orders and frequency factors were determined by making use of Kissinger method. And the kinetic equations of each reaction were deduced. X-ray diffraction patterns（XRD）, scanning electron microscope（SEM）result and size distribution measurements Fig.3～4 show that the synthesized LiMn2O4 possesses pure phase, regular appearance and normal distribution.
- Lithium-ion battery;LiMn₂O₄;Synthesizing kinetics;Micro-characters
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沈阳化工大学材料科学与工程学院沈阳 110142

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Study on Kinetics of Synthesizing Spinel LiMn2O4 for Lithium-ion Battery Cathode

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通讯作者: 陈斌, bchen63@163.com

Study on Kinetics of Synthesizing Spinel LiMn₂O₄ for Lithium-ion Battery Cathode