Patent · US Active

Lithium-mixed oxide particles encapsulated in aluminum oxide and titanium dioxide, and method for using same

US11760693B2 · kind B2 · utility

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0References

18Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Daniel Esken · Rückingen, DE
Christian Hofmann · Erlangen, DE

Key dates

Filing date	Feb 13, 2018
Grant date	Sep 19, 2023
Priority date	—
Expiry date	Apr 11, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Process for producing coated mixed lithium oxide particles, in which mixed lithium oxide particles and a mixture comprising aluminium oxide and titanium dioxide are subjected to dry mixing by means of a mixing unit having a specific power of 0.1-1 kW per kg of mixed lithium oxide particles and mixture used, in total, under shearing conditions.Coated mixed lithium oxide particles comprising a mixture of aluminium oxide and titanium dioxide as coating material, wherein the aluminium oxide and the titanium dioxide are in the form of aggregated primary particles and the weight ratio of aluminium oxide to titanium dioxide is 10:90-90:10. Battery cell comprising the coated mixed lithium oxide particles.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.