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:
Dec. 06, 2022
Filed:
Dec. 04, 2018
Umicore, Brussels, BE;
Umicore Korea Ltd., Cheonan-si, KR;
Yagmur Celasun, Paris, FR;
Jens Paulsen, Cheonan-si, KR;
Shinichi Kumakura, Cheonan-si, KR;
Areum Park, Cheonan-si, KR;
Jukyoung Lee, Cheonan-si, KR;
Taehyeon Yang, Cheonan-si, KR;
UMICORE, Brussels, BE;
UMICORE KOREA LTD., Cheonan-si, KR;
Abstract
The invention provides a positive electrode active material for a lithium ion battery, comprising a lithium transition metal-based oxide powder, the powder comprising single crystal monolithic particles comprising Ni and Co and having a general formula Li((Ni(NiMn)Co)A)02, wherein A is a dopant, −0.02<a≤0.06, 0.10≤x≤0.35, 0≤z≤0.90, x+y+z=1 and k≤0.01, the particles having a cobalt concentration gradient wherein the particle surface has a higher Co content than the particle center.