Operando Investigations of the Interfacial Electrochemical Kinetics of Metallic Lithium Anodes via Temperature-Dependent Electrochemical Impedance Spectroscopy
نویسندگان
چکیده
One of the major hurdles in utilization metallic lithium anodes is understanding Li+ transfer kinetics through solid electrolyte interface (SEI) addition to Li oxidation. Electrochemical impedance spectroscopy (EIS) combined with temperature variation provides deeper comprehension and reveals kinetic parameters individual processes separately. In this study, we report temperature-dependent EIS analysis shed light on anodic/interfacial at different states charge wide ranges (−25 75 °C), utilizing thionyl chloride (Li/SOCl2) manganese dioxide (Li/MnO2) primary batteries as model systems. We found both that SEI highly non-Arrhenius behavior temperatures greater than 35 °C. Conversely, anodic process showed small dependence explained by Arrhenius equation throughout range studied. The results provide a underlying separately under operando real-time conditions.
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ژورنال
عنوان ژورنال: Journal of Physical Chemistry C
سال: 2022
ISSN: ['1932-7455', '1932-7447']
DOI: https://doi.org/10.1021/acs.jpcc.2c02396