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. 13, 2026
Filed:
Jul. 18, 2023
Samsung Sdi Co., Ltd., Yongin-si, KR;
Youngjoo Chae, Yongin-si, KR;
Minhan Kim, Yongin-si, KR;
Jinhwa Kim, Yongin-si, KR;
Jihyun Seog, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
Disclosed are a positive active material for a rechargeable lithium battery, a preparation method thereof, and a rechargeable lithium battery including the same. The positive active material for a rechargeable lithium battery includes a first positive active material including a lithium nickel-based composite oxide and including a secondary particle in which a plurality of primary particles are aggregated and a cobalt coating portion on a surface of the secondary particle, and a second positive active material including a lithium nickel-based composite oxide and including a single particle and a cobalt coating portion on a surface of the single particle, wherein a cobalt content (at %) based on the total amount of nickel and cobalt in the cobalt coating portion of the first positive active material is about 1.45 times to about 1.60 times a cobalt content (at %).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile