Electrochemical Characterization of LiAlCl4 ‐ SO 2 Electrolyte

The all‐inorganic, stable, low‐vapor‐pressure conductive electrolyte that has been proposed as a battery electrolyte for lithium rechargeable cells has been characterized by cyclic voltammetry. The chief reduction product is assumed to be lithium dithionite. During oxidation, is electrochemically oxidized to soluble molecular chlorine, which then chemically oxidizes the cathode discharge product. Addition of soluble molecular chlorine to the electrolyte significantly reduces passivation of the cathode during reduction.