The thin separator sheet was
modified with three different polymeric emulsions (polytetrafluorethylene,
polyvinylpyrollidonestyrene or polyvinylpyrrolidone)
employing a technology developed in this laboratory [5,6]. The thin
sheet ofmodified AGMseparatorwas inserted between the 2.4mm
thick separator facing the positive plate and the 1.8mm one facing
the negative plate