ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,494,507, issued on Dec. 9, was assigned to ALBEMARLE Corp. (Charlotte, N.C.).

"Flame retardants for battery electrolytes" was invented by Tse-Chong Wu (Conroe, Texas), Zhongxin Ge (Baton Rouge, La.), Sascha Joerg Welz (Phoenix) and Mark Timothy Bennett (Baton Rouge, La.).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention provides nonaqueous electrolyte solutions for lithium batteries. The nonaqueous electrolyte solutions comprise a liquid electrolyte medium; a lithium-containing salt; 4-bromomethyl-1,3-dioxolan-2-one, and at least one electrochemical additive."

The patent was filed on Nov. 18, 2020, under Application No. 17/777,361.

*For furt...