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Figure 4
(a) Calibrated and normalized XANES data at the Fe K edge during charge. A (0 mAh), B (0.75 mAh), C (1.50 mAh), D (2.25 mAh) and E (3.0 mAh) in the figure represent the different stages in the charge process at which the X-ray measurements were performed. (b) Pre-edge region of the XAS spectra, which shows the t2g and eg absorption bands at the stages A (LiFePO4) and E (FePO4).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
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