Patent · US Active

Composition comprising lithium compound and mixed metal hydroxides and their preparation and use

US7622190B2 · kind B2 · utility

2Cited by

7References

3Claims

0Family size

Assignee

Toda Kogyo Europe GmbH · DE

Inventors

Sven Albrecht · Goslar, DE
Michael Kruft · Sarnia, CA
Armin Olbrich · Seesen, DE
Stefan Malcus · Goslar, DE
Wolfgang Wiezoreck · Laufenbürg, DE
Trevor McLeod · Sarnia, CA
Shuja Siddiqui · Sarnia, CA
Rob Rops · Petrolia, CA
Hirofumi Hori · Ibaraki, JP

Key dates

Filing date	Sep 12, 2005
Grant date	Nov 24, 2009
Priority date	—
Expiry date	Nov 22, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2991
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present invention relates to a particulate mixed metal hydroxide that includes nickel, cobalt and aluminium. The powder particles have a core of nickel/cobalt hydroxide, and a surface that is coated with amorphous aluminium hydroxide. A process for the continuous preparation of such mixed metal hydroxides is also described. The process includes precipitating aluminium hydroxide in the presence of a nickel/cobalt mixed hydroxide in a tube reactor. The mixed metal hydroxides of the present invention may be used to prepare active materials for positive electrodes of a secondary battery.

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