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:
Mar. 24, 2020
Filed:
Apr. 01, 2019
Haldor Topsøe A/s, Kgs. Lyngby, DK;
Jonathan H∅jberg, Kgs. Lyngby, DK;
Jakob Weiland Høj, Gentofte, DK;
Søren Dahl, Hillerød, DK;
Christian Fink ElkjÆr, Birkerød, DK;
HALDOR TOPSØE A/S, Kgs. Lyngby, DK;
Abstract
A lithium positive electrode active material including at least 95 wt % spinel having a chemical composition of LiNiMnD1D2O, wherein 0.9≤x≤1.1, 0.4≤y≤0.5, 0.005≤z1≤0.2, 0≤z2≤0.2, wherein D1 and D2 are dopants chosen between the following elements: Co, Cu, Ti, Zn, Mg, Fe or combinations thereof. D1 and D2 are different dopants, and the lithium positive electrode active material is a powder composed of material particles, wherein the distribution of dopant D1 is non-uniform along a radial axis of the material particles and the distribution of the dopant D2 is substantially uniform along the radial axis of the material particles. Also, a process for preparing the lithium positive electrode active material and a secondary battery comprising the lithium positive electrode active material.