Abstract
Effect of the anion nature on the cathodic intercalation of lithium into graphite is studied. The duration of a discharge process and the capacity of Li x C6 electrodes increase in the row Cl– ≪ HSO4 – < ClO4 – < SCN–. The highest negative potential of an Li x C6 electrode is reached when lithiating in an LiSCN non-aqueous solution. X-ray diffraction and microstructure analyses confirm the presence in the electrode's upper layers of predominantly layered compounds Li x C6A y , where A is anion. In deep layers, the principal intercalation product is Li x C6.
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Popova, S.S., Ol'shanskaya, L.N. & Pominova, T.V. Electrochemical Intercalation of Lithium into Graphite in Acetonitrile Solutions: The Effect of the Anion Nature. Russian Journal of Electrochemistry 38, 362–368 (2002). https://doi.org/10.1023/A:1015379603083
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DOI: https://doi.org/10.1023/A:1015379603083