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US 11,145,934 B2Granted
Composite layers or separators for lead acid batteries
AssigneeDaramic, LLC
InventorsAhila Krishnamoorthy, Kumar Manickam, Robert Saffel
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AssigneeDaramic, LLC
InventorsAhila Krishnamoorthy, Kumar Manickam, Robert Saffel
Estimating the term…
Disclosed herein are novel or improved fibrous layers, composites, composite separators, separators, composite mat separators, composite mat separators containing fibers and silica particles, battery separators, lead acid battery separators, and/or flooded lead acid battery separators, and/or batteries, cells, and/or methods of manufacture and/or use of such fibrous layers, composites, composite separators, separators, battery separators, lead acid battery separators, cells, and/or batteries. In addition, disclosed herein are methods, systems, and battery separators for enhancing battery life, reducing internal resistance, reducing metalloid poisoning, reducing acid stratification, and/or improving uniformity in at least enhanced flooded batteries.
A lead acid battery separator containing at least one separator layer consisting essentially of a composite layer of fibers and silica, wherein the fibers are selected from the group consisting of a mixture of glass fibers and polyethylene fibers and a mixture of glass fibers and PET fibers, and the silica is selected from the group consisting of agglomerated silica, flocculated silica, amorphous precipitated silica, silica gel, and combinations thereof, and further comprising a coating of a non-ionic surfactant on at least one surface of the composite layer of fibers and silica, wherein said composite layer is laminated on a porous polymer separator layer, wherein the polymer may be selected from polyolefins, and phenol-formaldehyde;
Dependencies are inferred from the claim text.