Anodic Behavior of Lithium in Aqueous Electrolytes: IV . Influence of Temperature

The influence of temperature on the anodic behavior of lithium in was studied at constant electrolyte flow velocity, concentration, and contact pressure. It was found that the thickness of oxide film decreases significantly with increasing temperature and the active surface area decreases gradually with increase in temperature. A rate equation for the e.r. at an anodically polarized Li surface serves to predict the current efficiency at various temperatures. By polarizing the anode, the hydrogen evolution reaction is inhibited and this, coupled with a significant decrease of the surface active area with increasing temperature, explains the stability of the lithium electrode in aqueous alkaline electrolytes. Data on the conductivity of 4.5M at temperatures from 17° to 64°C are reported.