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. 16, 2025
Filed:
Dec. 20, 2019
A123 Systems Llc, Novi, MI (US);
Derrick Maxwell, Winthrop, MA (US);
Xiangyang Zhu, Watertown, MA (US);
Jun Wang, Shrewsbury, MA (US);
Taehwan Yu, Burlington, MA (US);
Weidong Zhou, Winchester, MA (US);
Sookyung Jeong, Burlington, MA (US);
Derek C. Johnson, Fort Collins, CO (US);
Linghong Zhang, Waltham, MA (US);
Kerui Sun, Cambridge, MA (US);
Nathan Reinsma, Medford, MA (US);
Xiaorui Chen, Waltham, MA (US);
A123 SYSTEMS LLC, Novi, MI (US);
Abstract
Methods and systems are provided for a cathode material for lithium ion batteries. In one example, the cathode material may include a lithium mixed metal oxide core and a surface coating surrounding the core. Optionally, a passivating layer may continuously surround the surface coating. In some examples, the surface coating or surface layer may include a sacrificial lithium source, a lithium-based active cathode catalyst, or a combination thereof. In other examples, methods are provided for manufacturing the cathode material for use in a lithium ion battery.