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:
Oct. 31, 2023
Filed:
Jul. 24, 2020
Uchicago Argonne, Llc, Chicago, IL (US);
Jason R. Croy, Plainfield, IL (US);
Mahalingam Balasubramanian, Naperville, IL (US);
UCHICAGO ARGONNE, LLC, Chicago, IL (US);
Abstract
Stabilized layered lithium metal oxide cathode materials are described which include excess lithium, Ni, Mn, and at least one other metal ion. The materials comprise a layered LiMO-type material in which M comprises a combination of Ni, Mn, and at least one other metal ion that includes less than about 6 mol % Co; and which has about 1 to 6 percent excess lithium. In one embodiment, the stabilized lithium metal oxide cathode material comprises a composition having the empirical formula xLiMnO·(1−x)LiNiMnCoO, wherein 0<x≤0.1; and 0≤δ≤0.2. In another embodiment, the stabilized lithium metal oxide cathode material comprises a composition having the empirical formula Li[NiMnM']O, wherein M′ is one of more metal selected from the group consisting of Co, Al, Fe, Mg, and Ti; 0<y≤0.02; 0.85≤a≤0.96; 0.03≤b≤0.1; and 0.01≤c≤0.1.