The separator profile has been recognised to be particularly
important in industrial cells. While widely spaced
vertical ribs are well adapted to flat plates, they become
unsuitable for tubular plates because the ribs can enter into
the tubes inter space and lead to acid starvation. On the other hand, diagonal ribs are better suited for tubular plates. The
advantage of the ‘‘S’’ or ‘‘T’’ corrugated separator is that its
design is compatible with both plate types, allowing an equal
repartition of acid in both positive and negative compartments,
as the stochiometry of the reactions indicates that
both electrodes need the same amount of electrolyte.