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:
Jun. 02, 2026
Filed:
Nov. 17, 2022
Positive electrode active material for rechargeable lithium battery and rechargeable lithium battery
Samsung Sdi Co., Ltd, Yongin-si, KR;
Pilsang Yun, Yongin-si, KR;
Hyunbeom Kim, Yongin-si, KR;
Hanseul Lee, Yongin-si, KR;
Do-Yu Kim, Yongin-si, KR;
Yongchan You, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A positive electrode active material for a rechargeable lithium battery, and a rechargeable lithium battery including the same are provided. The positive electrode active material includes a lithium nickel-based composite oxide wherein the positive electrode active material is in a form of secondary particles in which a plurality of primary particles are aggregated and at least a portion of the primary particles are radially arranged, in a cross-section of the secondary particles, a number ratio of the primary particles having a cross-sectional area of less than about 0.1 μmis greater than or equal to about 65%, and a full width at half maximum (FWHM) of the peak corresponding to the (003) plane in the X-ray diffraction analysis for the positive electrode active material is less than or equal to about 0.125.