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:
May. 12, 2026
Filed:
Oct. 11, 2019
A123 Systems Llc, Novi, MI (US);
Lixin Wang, Belmont, MA (US);
Weidong Zhou, Winchester, MA (US);
Yao Chen, Hangzhou, CN;
Chloe Harrison, Billerica, MA (US);
Fu Zhou, Sichuan, CN;
Kitae Kim, Cambridge, MA (US);
Jun Wang, Shrewbury, MA (US);
Derek C. Johnson, Fort Collins, CO (US);
A123 SYSTEMS LLC, Novi, MI (US);
Abstract
Methods and systems are provided for an electrode active material for lithium ion batteries. In one example, the electrode active material may include a lithium mixed metal oxide core and flame-retardant dusting particles partially retained within a surface of the core. In some examples, the dusting particles may have an average size of less than 20 μm. In some examples, the amount of dusting particles by weight may be greater than 0.1% of the core particles and less than 50% of the core particles. In another example, methods are provided for manufacturing the electrode active material for use in a lithium ion battery, where lithium metal composite core particles may be mixed with the flame-retardant dusting particles in a dry process.