Effect of temperature on the discharge and hydrogen evolution of lithium in alkaline aqueous solution

The effects of temperature on the discharge and hydrogen evolution of lithium anode in 4 M (mol L−1) LiOH solutions were investigated via hydrogen collection, polarization and SEM (scanning electron microscope). It was found that the hydrogen evolution rate is low below 30 °C with low discharge current density and the discharge current density is high over 30 with high hydrogen evolution rate. The lithium anode shows the better electrochemical performance with high discharge current density, low hydrogen evolution, and less porous film at 30 °C at 0.94 m s−1 in 4 M LiOH solutions.