Issue 15, 2011
From the journal:

Journal of Materials Chemistry

Solid state synthesis of LiFePO4 studied by in situ high energy X-ray diffraction

Zonghai Chen,*a   Yang Ren,b   Yan Qin,a   Huiming Wu,a   Shengqian Ma,ac   Jianguo Ren,a   Xiangming He,d   Y.-K. Sune  and  Khalil Amine*a  

* Corresponding authors

a Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL, USA
E-mail: zonghai.chen@anl.gov, amine@anl.gov

b X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL, USA

c Department of Chemistry, University of South Florida, Tampa, Florida, USA

d Tsing Hua University, Institute of Nuclear Science & New Energy Technology, Beijing, PR China

e Department of WCU Energy Engineering, Hanyang University, Seoul, South Korea

Abstract

The phase evolution and crystal structure transition of materials during solid-state synthesis of LiFePO4 were investigated by in situ high energy X-ray diffraction. It was found that the solid state reaction forming LiFePO4 started at a very low temperature, and LiFePO4 was clearly observed when the reaction temperature was above 173 °C. In situX-ray diffraction data also revealed that several impurities appeared when the reaction temperature was above 400 °C. These impurities were successfully indexed with ex situX-ray diffraction as Li3PO4, Fe2P, and Fe3P.

Graphical abstract: Solid state synthesis of LiFePO4 studied by in situ high energy X-ray diffraction

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Article information

DOI
https://doi.org/10.1039/C0JM04049E
Article type
Paper
Submitted
22 Nov 2010
Accepted
13 Jan 2011
First published
10 Mar 2011

J. Mater. Chem., 2011,21, 5604-5609

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Solid state synthesis of LiFePO4 studied by in situ high energy X-ray diffraction

Z. Chen, Y. Ren, Y. Qin, H. Wu, S. Ma, J. Ren, X. He, Y.-K. Sun and K. Amine, J. Mater. Chem., 2011, 21, 5604 DOI: 10.1039/C0JM04049E

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