Fig. 4: SEM images and proposed schematic of the cycled Li electrodes at 50 °C.
From: High-voltage and intrinsically safe electrolytes for Li metal batteries

a–f SEM images of the Li anodes cycled at 1 mA cm−2/2 mAh cm−2 for 100 times in a, d STD, b, e CME, and c, f VSE electrolytes. a–c and d–f are the top-view and cross-sectional SEM images, respectively. g The schematic of speculated Li electrode structure evolutions during cycling in different electrolytes.