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. 15, 2018
Filed:
Aug. 21, 2014
Umicore, Brussels, BE;
Umicore Korea Ltd., Chungnam, KR;
Randy De Palma, Seoul, KR;
JiHye Kim, Cheonan, KR;
Kris Driesen, Hasselt, BE;
Jens Paulsen, Daejeon, KR;
Jin Hu, Antwerp, BE;
Umicore, Brussels, BE;
Umicore Korea Ltd., Chungnam, KR;
Abstract
A carbonate precursor compound of a lithium manganese based oxide powder for a positive electrode of a rechargeable battery, the oxide having the general formula LiMO, wherein −0.03≤v≤0.25, wherein M is a composition comprising at least 50 mol % of manganese, and wherein the carbonate precursor compound has a secondary particle size D50 expressed in μm, and a tap density TD expressed in g/cm, with either 1≤TD≤(2.78*D50)/(D50+7.23) and the compound having a particle size distribution having a span S≤1.8 with S=(D90−D10)/D50; or 1≤TD≤(2.78*D50)/(D50+7.50).