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. 05, 2025
Filed:
Sep. 26, 2023
Ecopro Bm Co., Ltd., Cheongju-si, KR;
ECOPRO BM CO., LTD., Cheongju-si, KR;
Abstract
The present disclosure relates to a positive electrode active material including a first lithium composite oxide and a second lithium composite oxide that have a larger average particle diameter than the first lithium composite oxide. The first lithium composite oxide and the second lithium composite oxide are each independently represented by a formula of LiNiCoM1M2M3O, where M1 is at least one selected from Mn and Al, M2 and M3 are each independently selected from Al, Ba, B, Ce, Cr, Mg, Mn, Mo, Na, K, P. Sr, Ti, W, Nb and Zr, M1 to M3 are different, and 0.90≤a≤1.05, 0≤b≤0.10, 0≤c≤0.10, 0≤d≤0.025, 0≤e≤0.025, and 1.0≤f≤2.0. The second lithium composite oxide has an average particle diameter (D50) of 8.5 μm or more.