Electron energy-loss spectrometry on lithiated graphite
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125 (United States)
- Department of Physics and Astronomy, Arizona State University, Tempe, Arizona 85287 (United States)
Transmission electron energy-loss spectrometry was used to investigate the electronic states of metallic Li and LiC{sub 6}, which is the Li-intercalated graphite used in Li-ion batteries. The Li K edges of metallic Li and LiC{sub 6} were nearly identical, and the C K edges were only weakly affected by the presence of Li. These results suggest only a small charge transfer from Li to C in LiC{sub 6}, contrary to prior results from surface spectra obtained by x-ray photoelectron spectroscopy. Effects of radiation damage and sample oxidation in the transmission electron microscopy are also reported. (c) 2000 American Institute of Physics.
- OSTI ID:
- 20216997
- Journal Information:
- Applied Physics Letters, Vol. 77, Issue 2; Other Information: PBD: 10 Jul 2000; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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