ALEXANDRIA, Va., June 18 -- United States Patent no. 12,327,881, issued on June 10, was assigned to LG Energy Solution Ltd. (Seoul, South Korea) and Sihl GmbH (Duren, Germany).
"Separators for electrochemical cells" was invented by Zhong Xu (Holden, Mass.) and Steven A. Carlson (Cambridge, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are separators for use in batteries and capacitors comprising (a) at least 50% by weight of an aluminum oxide and (b) an organic polymer, wherein the aluminum oxide is surface modified by treatment with an organic acid to form a modified aluminum oxide, and wherein the treatment provides dispersibility of the aluminum oxide in aprotic solvents such as N-methyl p...