期刊
JOURNAL OF SYNCHROTRON RADIATION
卷 16, 期 -, 页码 610-615出版社
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S0909049509025710
关键词
NEXAFS; XANES; Li ion battery; in situ; LiCoO2
O K-edge and Co L-edge near-edge X-ray absorption fine structure has been used to examine the cathode of an intact solid-state lithium ion battery. The novel technique allowed for the simultaneous acquisition of partial electron yield and fluorescence yield data during the first charge cycle of a LiCoO2-based battery below the intercalation voltage. The chemical environments of oxygen and cobalt at the surface are shown to differ chemically from those in the bulk. The present design enables a wide variety of in situ spectroscopies, microscopies and scattering techniques.
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