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:
Dec. 31, 2024
Filed:
Apr. 29, 2020
A123 Systems Llc, Novi, MI (US);
Yang Shi, Waltham, MA (US);
Kitae Kim, Cambridge, MA (US);
Lixin Wang, Belmont, MA (US);
Yingjie Xing, Watertown, MA (US);
Andrew Millonig, Billerica, MA (US);
Bryan Kim, Waltham, MA (US);
Derek C. Johnson, Fort Collins, CO (US);
A123 SYSTEMS LLC, Waltham, MA (US);
Abstract
A doped cathode material for lithium-ion batteries is disclosed. Methods and systems are further provided for doping a cathode material for use in a lithium-ion battery. In one example, the doping may be a dry surface doping process. In some examples, dopants may stabilize a crystal structure of the cathode material and may result in fewer side reactions with an electrolyte as compared to an undoped cathode material. As such, cycling performance and capacity retention may be improved relative to the undoped cathode material. Further, in some examples, the doped cathode material produced with the dry surface doping process may have improved cycling performance and capacity retention relative to a comparable doped cathode material produced with a wet surface doping process.