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

Claim 5:
6. A lead acid battery comprising: a housing containing a positive electrode spaced apart from a negative electrode with a porous separator located between said positive electrode and said negative electrode and an electrolyte in ionic communication between said positive electrode and said negative electrode, said separator having a plurality of longitudinally extending ribs disposed on a first surface of said separator and a plurality of transversely extending ribs disposed upon a second surface of said separator, said plurality of longitudinally extending ribs being juxtaposed to said positive electrode and said transversely extending ribs being juxtaposed to said negative electrode, wherein the transversely extending ribs are discontinuous and include a plurality of longitudinally extending fissures, channels, recesses, or openings.