  We investigate the stability of electrodeposition at solid-solid interfaces
for materials exhibiting an anisotropic mechanical response. The stability of
electrodeposition or resistance to the formation of dendrites is studied within
a linear stability analysis. The deformation and stress equations are solved
using the Stroh formalism and faithfully recover the boundary conditions at the
interface. The stability parameter is used to quantify the stability of
different solid-solid interfaces incorporating the full anisotropy of the
elastic tensor of the two materials. Results show a high degree of variability
in the stability parameter depending on the crystallographic orientation of the
solids in contact, and point to opportunities for exploiting this effect in
developing Li metal anodes.
