The above
experimental data shows, that cells with surface modified separator
have lower total (recombinant and gas) current than the cells
with untreated separator. In general, the new composite material
does not suppress the oxygen cycle and does not stimulate
hydrogen evolution. At least, it is very probable that water generated
by the oxygen recombination will be well preserved between
the plate and the polymer coating, and will thus induce a “selfdefense”
effect. Cycle life tests show much better behavior of the
cells with polymer coated separator.