Figure 1 | Scientific Reports

Figure 1

From: Nanometer-scale mapping of irreversible electrochemical nucleation processes on solid Li-ion electrolytes

Figure 1

Li ion reduction on LICGC using bias sweeps of 0 to −5 V (a) Li metal particles formed after the application of linear sweep from 0 V to −5 V (applied to the tip, i.e. tip is the working electrode) with a sweep rate of 1200 mV s−1 on a 10 × 10 grid. (b) Correlation between the number of Li atoms plated and electrons transferred during the reduction. (c) Electron Paramagnetic Resonance (EPR) spectra for as received LICGC (red dash-dot line), LICGC with Li particles reduced in an Ar filled glove box (blue solid line) and Li foil (green dotted line). (d–e) Comparison of histograms of particle volume created in a normal bias sweep (blue) versus bias sweeps with current compliance (red) showing that the particles grow until a current limit is reached in compliance mode, while particles can grow uncontrollably in regular sweeps. The data in a, b and c correspond to different data sets obtained under similar conditions.

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