In situ XANES & XRD Study of interphasial reaction between uncharged Li2FeSiO4 cathode and LiPF6-based electrolyte

被引：1
|
作者：
Arthur, Z. [1 ]
Chiu, H. C. [2 ]
Lu, X. [2 ]
Chen, N. [3 ]
Emond, V. [1 ]
Demopoulos, G. P. [2 ]
Jiang, D. T. [1 ]
机构：
[1] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada
[2] McGill Univ, Dept Mat Engn, Montreal, PQ H3A 0C5, Canada
[3] Canadian Light Source, Saskatoon, SK S7N 2V3, Canada
来源：
16TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS16) | 2016年 / 712卷
关键词：
BATTERIES; DETECTOR;
D O I：
10.1088/1742-6596/712/1/012124
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In situ synchrotron radiation XANES and XRD have been carried out on Li2FeSiO4 cathode material in a lithium-ion-battery (LIB) cell. The evolution of the long range lattice structure and the local iron oxidation state has been observed at a charging rate of C/20 for the formation cycle for one Lithium extraction; additional ex situ measurements of the pristine cathode material were taken for comparison. The observed spontaneous interaction between the cathode and the fluorinated electrolyte and the impact of subsequent cycling are discussed.
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页数：4
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