Fig. 3: EIS measurements in lithium-free anode cell at current densities 0.01–2.5 mA cm−2. | Nature Communications

Fig. 3: EIS measurements in lithium-free anode cell at current densities 0.01–2.5 mA cm−2.

From: Effect of current density on the solid electrolyte interphase formation at the lithium∣Li6PS5Cl interface

Fig. 3

Nyquist curves (raw data as symbols, curve fits as lines) depicting evolution of electrochemical impedances for the lithium-free half cell SS∣LPSCl∣LiIn for plating at a J2.5 = 2.5 mA cm−2, b J0.5 = 0.5 mA cm−2, c J0.05 = 0.05 mA cm−2 and d J0.01 = 0.01 mA cm−2, after passing similar equivalent charge. Variation in the low-frequency tail of the impedance curves can be correlated to extent of change in interphasial evolution. The high impedance resulting from poor initial contact with the ion-blocking electrode at the Li-less anode side is evident from EIS curves at qA = 0 μAh cm−2 (black circles)50. The equivalent circuit used to fit the obtained EIS data is schematically depicted as an inset in panel a and corresponding values are reported in Supplementary Table 2, followed by a brief discussion presented in Supplementary Note 540,41.

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