Investigation of the interaction of lithium with n-InSe: spectra of inpedance and X-ray diffraction

Abstract

The system Li/1M LiBF4 in γ-butyrolactone/InSe is investigated by using the impedance spectroscopy and X-ray diffraction methods. For different stages of discharge the measurements of the Nyquist plots and diffraction spectra are represented. A modeling of the impedance spectra was carried out on the basis of different equivalent circuits and their acceptance is estimated. We have determined the pa rameters of the circuits’ elements and found the coefficients describing the electrode reactions and in terfaces. The obtained results are in good agreement to the intercalation-disproportion mechanism of lithium - InSe interaction.