Multiple protective layers for suppressing Li dendrite growth and improving the cycle life of anode-free lithium metal batteries

Mechanistic Study on Artificial Stabilization of Lithium Metal Anode via Thermal Pyrolysis of Ammonium Fluoride in Lithium Metal Batteries

“…Its reactivity drives the electrochemical decomposition of organic liquid electrolytes . The solid electrolyte interface (SEI) formation at Li metal anodes is uncontrolled and prone to crack accompanied by volume expansion. ,, To mitigate parasitic reactions and monitor the lithium flux, a promising strategy of electrolyte additive , including alloy formation is employed to stabilize deposited lithium. − The most effective approach is artificially stabilizing the lithium metal anode via gas treatment. Vaporization of iodine on lithium metal to form LiI and even on solid electrolytes as an additive suggests an effective way to stabilize lithium metal. , Other practical approaches include direct N 2 (g) and SO 2 (g) gas treatment of lithium metal and directly on liquid electrolyte, which induces uniformity and stabilizes electrochemical Li plating/stripping attributed to Li 3 N and inorganic Li 2 S 2 O 4 formation, respectively.…”