Abstract
Lithium plating is a detrimental process that occurs in the negative electrode, leading to reduced cell performance and cycle life. The process of deposition of metallic lithium is limited to the anode and can be detected by monitoring the anode potential of the cell. In this work, a three-electrode pouch cell configuration is constructed which includes a reference electrode in order to enable in operando detection and quantification of lithium plating at different C-rates. It was observed that the cell exhibited three different regimes for capacity fade based on the dominant modes of degradation mechanisms at different cycle ranges, based on the relative amplitudes of the plating energy. The associated change in the high- and low-frequency resistance facilitated understanding the mechanisms contributing to the failure of the cell at different regimes.
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