ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,484, issued on Sept. 30, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).
"Negative electrode with gradient structure" was invented by Taylor R. Garrick (Royal Oak, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A negative electrode of a lithium battery includes a current collector and a negative electrode layer disposed on a major surface of the current collector. The negative electrode layer exhibits a gradient structure including a proximal portion adjacent the major surface of the current collector and an opposite distal portion that defines a facing surface of the negative electrode layer. The negative electrode layer is co...