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:
Aug. 11, 2026
Filed:
Jan. 18, 2022
Samsung Sdi Co., Ltd., Yongin-si, KR;
Pilsang Yun, Yongin-si, KR;
Hyunbeom Kim, Yongin-si, KR;
Sangin Park, Yongin-si, KR;
Yongchan You, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A positive active material for a rechargeable lithium battery includes a first positive active material including a secondary particle formed by aggregation of a plurality of primary particles, wherein at least a portion of the primary particles have a radially arranged structure, and a second positive active material including a secondary particle formed by aggregation of a plurality of primary particles, wherein the first positive active material and the second positive active material are both (e.g., simultaneously) nickel-based positive active materials, a particle diameter of the secondary particle of the first positive active material is larger than a particle diameter of the secondary particles\ of the second positive active material, and the second positive active material is coated with a boron compound.