Solid state battery systems pairing Li metal anodes with inorganic solid electrolytes may deliver increased safety, specific energy and energy density compared to state-of-the-art Li-ion batteries . Nevertheless, the interface between Li metal and an inorganic solid electrolyte suffers from two significant challenges. The first is a susceptibility to short circuits due to penetration by metal filaments (often referred to as "dendrites") upon deposition at current densities exceeding a critical value (hereafter referred to as the "critical current density, CCD") in the range 0.1-1 mA cm -2 (at room temperature), which is too low for many practical applications . The second problem is that of impedance rise due to the formation of voids at the solid electrolyte/anode interface during electrostripping . This issue is particularly exacerbated at stripping current densities over 0.5 mA cm -2 and has the effect of limiting the accessible areal capacity to ~1.5 mAh cm -2 within typical voltage windows (< 1V stripping overpotential) . Furthermore, void formation at the electrolyte-electrode interface increases the likelihood for cell failure via the metal penetration mechanism upon subsequent plating. This is due to the increase in local plating current density since the reduction in interfacial contact area occurs non-uniformly upon void formation and creates current constriction "hot spots" between electrode and electrolyte . It has been shown that the accumulation of these electrostripping-induced voids depends on both the magnitude of the stripping current density and the rate of replenishment of Li at the interface by Li metal creep . This second process is a function of the applied stack pressure, where increasing pressure increases the maximum sustainable current density for avoiding voids (0.2 mA cm -2 at 3 MPa, 1.0 mA cm -2 at 7 MPa for the Li/Li6PS5Cl/Li system). Similar trends and behavior have further been observed in an analogous system incorporating solid Na metal electrodes and Na -β''-Al2O3 solid electrolyte. This requirement of large stack pressures for preventing void formation during cell cycling represents a substantial engineering challenge that may hinder the development of robust batteries at the cell, module, and pack level.