Patent ID: 11942655
Assignee: DARAMIC, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A separator for a lead acid battery comprising:
a porous membrane having a positive electrode face and a negative electrode face, wherein the positive electrode face and the negative electrode face are on opposite sides of the porous membrane;
a plurality of longitudinally extending ribs being disposed upon said positive electrode face; and
a plurality of transversely extending ribs being disposed upon said negative electrode face,
wherein the plurality of longitudinally extending ribs are perpendicular to the plurality of transversely extending ribs,
wherein said plurality of transversely extending ribs disposed upon said negative electrode face being adapted to be juxtaposed to a negative electrode, when the separator is placed within the lead acid battery, wherein the plurality of transversely extending ribs are discontinuous and include a plurality of longitudinally extending fissures, channels, recesses, or openings.