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:
May. 06, 2025
Filed:
Jul. 02, 2020
Umicore, Brussels, BE;
Umicore Korea Ltd., Chungcheongnam-do, KR;
Shinichi Kumakura, Tokyo, JP;
TaeHyeon Yang, Chungcheongnam-do, KR;
Jens Paulsen, Chungcheongnam-do, KR;
Maxime Blangero, Chungcheongnam-do, KR;
Elsye Agustina, Chungcheongnam-do, KR;
UMICORE, Brussels, BE;
UMICORE KOREA LTD., Chungcheongnam-do, KR;
Abstract
A positive electrode active material powder suitable for lithium-ion batteries, comprising lithium transition metal-based oxide particles comprising a core and a surface layer, said surface layer being on top of said core, said particles comprising the elements: Li, a metal M' and oxygen, wherein the metal M′ has a formula: M′=(NiMnCo)A, wherein A is a dopant, 0.55≤z≤0.89, 0.05≤y≤0.25, 0.05≤x≤0.25, x+y+z+k=1, and k≤0.01, said positive electrode active material powder having a mean particle size D50 ranging from 3 μm to 15 μm and a surface layer thickness ranging from 5 nm to 200 nm. The surface layer comprises aluminum in a content superior or equal to 0.04 wt % and inferior or equal to 0.15 wt % relative to the total weight of the positive electrode active material.