Vigilancia Tecnológica

A coated battery separator, coated battery gelation composite substrate, or coated battery separator membrane is provided comprising a microporous substrate; and a coating on one or both sides of the microporous substrate. The coating comprises a polymeric binder and inorganic filler or siliceous material. In some examples, the separator is coated on one or both sides of the microporous substrate or membrane, wherein the coating comprises a polymeric binder, siliceous material, and carboxymethyl cellulose (CMC). In some examples, the microporous substrate may be a ribbed microporous substrate comprising polyethylene. Also provided are batteries including the coated battery separator, coated battery gelation composite substrate, or coated battery separator membrane. Such batteries may be improved flooded lead acid batteries, VRLA gel batteries, AGM batteries, storage batteries, or flow batteries.