High rate delithiation behaviour of LiFePO4 studied by quick X-ray absorption spectroscopy

Xiqian Yu; Qi Wang; Yongning Zhou; Hong Li; Xiao-Qing Yang; Kyung-Wan Nam; Steven N. Ehrlich; Syed Khalid; Ying Shirley Meng

doi:10.1039/C2CC36382H

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High rate delithiation behaviour of LiFePO₄ studied by quick X-ray absorption spectroscopy†

Xiqian Yu,^a Qi Wang,^a Yongning Zhou,^a Hong Li,^b Xiao-Qing Yang,*^a Kyung-Wan Nam,*^a Steven N. Ehrlich,^a Syed Khalid^a and Ying Shirley Meng^c

Author affiliations

* Corresponding authors

^a Brookhaven National Laboratory, Upton, USA
E-mail: xyang@bnl.gov, knam@bnl.gov
Tel: +1-631-3443663

^b Institute of Physics, Chinese Academy of Sciences, Beijing, China

^c Department of NanoEngineering, University of California San Diego, La Jolla, CA, USA

Abstract

A novel in situ time-resolved synchrotron X-ray absorption spectroscopy (XAS) was introduced for the dynamic studies during fast chemical and electrochemical delithiation of LiFePO₄. The lithium diffusion in LiFePO₄ and the reaction mechanisms for both processes were investigated. This approach opens new opportunities for dynamic studies of various energy storage systems.

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Article information

DOI: https://doi.org/10.1039/C2CC36382H
Article type: Communication
Submitted: 01 Sep 2012
Accepted: 08 Oct 2012
First published: 09 Oct 2012

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Chem. Commun., 2012,48, 11537-11539

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High rate delithiation behaviour of LiFePO₄ studied by quick X-ray absorption spectroscopy

X. Yu, Q. Wang, Y. Zhou, H. Li, X. Yang, K. Nam, S. N. Ehrlich, S. Khalid and Y. S. Meng, Chem. Commun., 2012, 48, 11537 DOI: 10.1039/C2CC36382H

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Chemical Communications