ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,529, issued on Sept. 30, was assigned to Celgard LLC (Charlotte, N.C.).

"High melt temperature microporous lithium-ion rechargeable battery separators and methods of preparation and use" was invented by C. Glen Wensley (Rock Hill, S.C.), Carlos R. Negrete (Huntersville, N.C.) and Jill V. Watson (Lake Wyle, S.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed or provided are high melt temperature microporous Lithium-ion rechargeable battery separators, shutdown high melt temperature battery separators, battery separators, membranes, composites, and the like that preferably prevent contact between the anode and cathode when the battery is ma...