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:
Sep. 07, 2021
Filed:
Feb. 14, 2018
Umicore, Brussels, BE;
Umicore Korea Ltd., Cheonan, KR;
Areum Park, Cheonan, KR;
JiHye Kim, Cheonan, KR;
Song-Yi Han, Cheonan, KR;
Jens Martin Paulsen, Cheonan, KR;
Kyung-Tae Lee, Cheonan, KR;
Randy De Palma, Olen, BE;
Umicore, Brussels, BE;
Umicore Korea Ltd., Chungnam, KR;
Abstract
A crystalline precursor compound for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor having a general formula Li((Ni(NiMn)Co)A)O, wherein x+y+z=1, 0.1≤x≤0.4, 0.25≤z≤0.52, A is a dopant, 0≤k≤0.1, and 0.03≤a≤0.35, wherein the precursor has a crystalline size L expressed in nm, with 15≤L≤36. Also a method is described for manufacturing a positive electrode material having a general formula Li'M′−O, with M′=(Ni(NiMn)CO)A, wherein x+y+z=1.0.1≤x≤0.4, 0.25≤z≤0.52, A is a dopant, 0≤k≤0.1, and 0.01≤a′≤0.10, by sintering the lithium deficient precursor powder mixed with either one of LiOH, LiOH.HO, in an oxidizing atmosphere at a temperature between 800 and 1000° C., for a time between 6 and 36 hrs.