ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,585, issued on June 17, was assigned to DUPONT SAFETY & CONSTRUCTION INC. (Wilmington, Del.).
"Separator media for electrochemical cells" was invented by Hyun Sung Lim (Midlothian, Va.) and Pankaj Arora (Chesterfield, Va.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A separator medium for electrochemical cells that contains at least one nonwoven sheet of polymeric fibers. The nonwoven sheet has a surface area of about 0.5 to about 1.5 m2/g and has a maximum pore size that is equal to or more than 2.5 times the mean flow pore size and more than 11 times the minimum pore size. The sheet may be sulfonated to a level of 0.67% and demonstrates superior...