The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2025
Filed:
Oct. 26, 2021
GM Global Technology Operations Llc, Detroit, MI (US);
Taylor R. Garrick, Royal Oak, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
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 configured such that a power density of the distal portion of the negative electrode layer is greater than that of the proximal portion of the negative electrode layer, and an energy density of the proximal portion of the negative electrode layer is greater than that of the distal portion of the negative electrode layer.