This work probes the morphological evolution of the electrode-electrolyte interface and observes the growth of lithium dendrites in β-Li3PS4 using x-ray tomography, guided by thermography. Thermography enables the direct visualization of short circuits in the electrolyte, which are shown in Figure 1 to preferentially form in continuous boundary or void spaces, and identifies locations of interest to examine with x-ray tomography. With the density dependence of x-ray microscopy, it is possible to examine the correlation of lithium dendrite growth to voids or phase defects and to better understand the behavior of dendrites in high-modulus electrolyte systems. In order to better understand the reactions and mechanisms occurring during cycling as a function of current density, morphological changes detected with x-ray tomography are correlated with chemical information acquired using energy dispersive spectroscopy (EDS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). Results will be presented for cold-pressed pellets of the conductive ceramic powder enclosed in lithium-lithium symmetric cells compared over three conditions: uncycled cells, cells cycled under low current, and cells cycled under high current, both for a specific amount of charge.