Dentrite-Free Electrochemical Deposition of Li–Na Alloys from an Ionic Liquid Electrolyte

The deposition of Li–Na alloys from an ionic liquid medium has been demonstrated and evaluated with respect to dendrite growth, oxidation potential, and stability. The maximum coulombic efficiency for the reoxidation of the Li–Na alloy was found to be 91%. The conductivity of the ionic liquid medium containing the alloy salts was 364 – 466 μ S ∕ cm 2 . Upon addition of sodium to the lithium-ion electrolyte, a Li–Na alloy was deposited ( mA ∕ cm 2 current density range) that appears to suppress dendrite formation.