Patent · US Active

Process for the preparation of lithium titanium spinel and its use

US10170758B2 · kind B2 · utility

0Cited by

5References

7Claims

0Family size

Assignee

Johnson Matthey Public Limited Company · GB

Inventors

Stefanie Rudenko · Hallbergmoos, DE
Manuel PFANZELT · Sauerlach, DE
Andreas Laumann · Birkenfeld, DE

Key dates

Filing date	May 28, 2014
Grant date	Jan 1, 2019
Priority date	—
Expiry date	May 28, 2034

Classification

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

Abstract

A composite oxide with x wt.—parts Li2TiO3, preferably in its cubic modification of space group Fm-3m, y wt.—parts TiO2, z wt.—parts of Li2CO3 or LiOH, u wt.—parts of a carbon source and optionally v wt.—parts of a transition or main group metal compound and/or a sulphur containing compound, wherein x is between 2 and 3, y is between 3 and 4, z is between 0.001 and 1, u is between 0.05 and 1 and 0≤v<0.1 and the metal of the transition or main group metal compound is selected from Al, Mg, Ga, Fe, Co, Sc, Y, Mn, Ni, Cr, V or mixtures thereof. Also, a process for the preparation of a composition of non-doped and doped lithium titanate Li4Ti5O12, including secondary agglomerates of primary particles, using the composite oxide and its use as anode material in secondary lithium-ion batteries.

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