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:
Jan. 09, 2024
Filed:
Jan. 25, 2019
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
SUMITOMO METAL MINING CO., LTD., Tokyo, JP;
Abstract
A positive electrode active material for non-aqueous electrolyte secondary battery containing a lithium-nickel-manganese composite oxide formed of secondary particles with a plurality of aggregated primary particles, in which the positive electrode active material is represented by a general formula (1): LidNiMnMNbcO, at least a part of niobium is solid-dissolved inside the primary particles, and an amount of lithium to be eluted into water when the positive electrode active material is immersed in water is 0.02% by mass or more and 0.10% by mass or less with respect to the entire positive electrode active material as determined by a neutralization titration method.