Durable hydrophilic nonwoven mat for rechargable alkaline batteries
AssigneeAhlstrom Mount Holly Springs, LLC
InventorsLarry L. Kinn, Ashish Mathur, Gregory Neil Henning, Timothy L. Ritter
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Abstract
A battery separator material comprising a nonwoven web of a wettable fiber matrix, wherein the wettable fiber matrix are thermoplastic polymeric fibers blended with at least one. hydrophilic melt additive. In alternate embodiments, the nonwoven web further includes binder fibers which may be wettable or non-wettable or combinations of both.
Claims21
A battery separator material comprising a nonwoven web of a wettable fiber matrix wherein said wettable fiber matrix are thermoplastic polymeric fibers blended with at least one hydrophilic melt additive, said hydrophilic melt additive comprising a mixture of hydroxy phenols and polyethylene glycols.
A battery separator material comprising a nonwoven web of a wettable fiber matrix wherein said wettable fiber matrix are thermoplastic polymeric fibers blended with at least one hydrophilic melt additive, said nonwoven web further comprising non-wettable binder fibers.
A battery separator material comprising a nonwoven web of a wettable fiber matrix wherein said wettable fiber matrix are thermoplastic polymeric fibers blended with at least one hydrophilic melt additive, and wherein at least some of said thermoplastic polymeric fibers are sheath/core fibers and said hydrophilic melt additive is blended into the sheath of said sheath/core fibers.
Dependencies are inferred from the claim text.