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Title: Electron energy-loss spectrometry on lithiated graphite

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.126936· OSTI ID:20216997
 [1];  [1];  [1];  [2]
  1. Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125 (United States)
  2. 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