In terms of chemo-mechanical characterization, operando microprobe scanning electron microscopy (SEM) has emerged as a powerful platform for investigating electro-chemomechanics and local defects in solid-state batteries. Operating at the microscale, the microprobe's tip functions as a microscopic electrode/current collector (~1 µm), enabling the exploration of local defects and their impact on the Li electroplating process. This contrasts with conventional Li electroplating using macroscopic electrodes (≫1 mm). Importantly, the microprobe can generate surface defects in-situ via controllable mechanical force, rendering it ideal for investigating the effect of mechanically-generated defects on electrochemical reactions. Furthermore, leveraging the high spatial resolution of SEM, this micro-contact approach observes both vertical and lateral growth of Li electroplating at the nanoscale. The latter is particularly important as the contact area determines the current density. Focused-ion beam (FIB) at the same location images the sub-surface microstructure at the Li intrusion site.