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:
Apr. 02, 2024
Filed:
Feb. 25, 2019
Umicore, Brussels, BE;
Umicore Korea Ltd., Cheonan-si, KR;
Dae-Hyun Kim, Cheonan-si, KR;
Jens Paulsen, Cheonan-si, KR;
Shinichi Kumakura, Cheonan-si, KR;
YuRi Lee, Cheonan-si, KR;
Liang Zhu, Cheonan-si, KR;
TaeHyeon Yang, Cheonan-si, KR;
UMICORE, Brussels, BE;
UMICORE KOREA LTD., Cheonan-si, KR;
Abstract
A bimodal lithium transition metal oxide based powder mixture comprising a first and a second lithium transition metal oxide based powder. The first powder comprises a material A having a layered crystal structure comprising the elements Li, a transition metal based composition M and oxygen and has a particle size distribution with a span <1.0. The second powder has a monolithic morphology and a general formula LiN′O, wherein −0.03≤b≤0.10, and N′=NiM″CoE, wherein 0.30≤x≤0.92, 0.05≤y≤0.40, 0.05≤z≤0.40 and 0≤d≤0.10, with M″ being one or both of Mn or Al, and E being a dopant different from M″. The first powder has an average particle size D50 between 10 and 40 μm. The second powder has an average particle size D50 between 2 and 4 μm. The weight ratio of the second powder in the bimodal mixture is between 20 and 60 wt %.