Abstract
We report herein on several phenomenological electrode–solution interactions which determine the performance of lithium and lithium ion batteries. This review is based on extensive studies of the behavior of Li, lithiated carbons and lithiated transition metal oxide electrodes in a wide variety of non-aqueous electrolyte solutions. These studies included spectroscopic measurements (FTIR, XPS, EDAX), morphological and structural analysis (XRD, SEM, AFM) in conjunction with impedance spectroscopy, EQCM and standard electrochemical techniques. It appears that the performance of both Li, Li–C anodes and Li x MO y cathodes depends on their surface chemistry in solutions. We address complicated surface film formation on these electrodes, which either contribute to electrode stabilization or to capacity fading due to an increase in the electrodes' impedance. Several common classical phenomena occurring in these systems are reviewed and discussed.
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