LiEL™ is a two chamber Membrane electrolysis process for converting Li2SO4 to LiOH. The LiEL™ process is specifically designed to work in conjunction with LiSX™ (Li solvent extraction). LiSX™ produces a concentrated Li2SO4 which is ideally suited for the LiEL™ process. When the LiEL™ process converts Li2SO4 to LiOH, H2SO4 is produced as a bi-product, which can be returned as strip solution for LiSX™. As the solution returns to LiSX™ it is possible to only convert a portion of the feed thus maintaining a high Li concentration and high cell efficiency.