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:
Nov. 24, 2009
Filed:
Sep. 12, 2005
Sven Albrecht, Goslar, DE;
Michael Kruft, Brights Grove, CA;
Armin Olbrich, Seesen, DE;
Stefan Malcus, Goslar, DE;
Wolfgang Wiezoreck, Selb, DE;
Trevor Mcleod, Sarnia, CA;
Shuja Siddiqui, Sarnia, CA;
Rob Rops, Petrolia, CA;
Hirofumi Hori, Ibaraki, JP;
Sven Albrecht, Goslar, DE;
Michael Kruft, Brights Grove, CA;
Armin Olbrich, Seesen, DE;
Stefan Malcus, Goslar, DE;
Wolfgang Wiezoreck, Selb, DE;
Trevor McLeod, Sarnia, CA;
Shuja Siddiqui, Sarnia, CA;
Rob Rops, Petrolia, CA;
Hirofumi Hori, Ibaraki, JP;
Toda Kogyo Europe GmbH, Dusseldorf, DE;
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.