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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.:

US 10468678 B1

PDFFull Text
Date of Patent:
Nov. 05, 2019

Filed:

Jun. 19, 2015

Process for making cathode materials for lithium ion batteries

Applicant:

Basf SE, Ludwigshafen, DE;

Inventors:

Aleksei Volkov, Ludwigshafen, DE;

Jordan Lampert, Cleveland, OH (US);

Thomas Michael Ryll, Heddesheim, DE;

Ji-Yong Shin, Mannheim, DE;

Markus Hoelzle, Kirchheim, DE;

Michael Eder, Wattenheim, DE;

Assignee:

BASF SE, Ludwigshafen, DE;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Jacob B Marks

Int. Cl.
CPC ...
H01M 4/02 (2006.01); H01M 4/525 (2010.01); H01M 10/0567 (2010.01); H01M 10/42 (2006.01); C01G 53/00 (2006.01); H01M 4/505 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 53/50 (2013.01); H01M 4/505 (2013.01); H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 10/4235 (2013.01); C01P 2002/50 (2013.01); C01P 2002/88 (2013.01); C01P 2004/54 (2013.01); C01P 2004/61 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0025 (2013.01);
Abstract

Process for making a particulate material of general formula (I), wherein the integers are defined as follows: M is selected from Al and Ti, x is in the range of from 0.015 to 0.03, a is in the range of from 0.3 to 0.6, b is in the range of from 0.05 to 0.35, c is in the range of from 0.2 to 0.5, d is in the range of from 0.001 to 0.03, with a+b+c+d=1 said process comprising the following steps: (a) co-precipitating a mixed hydroxide of nickel, cobalt and manganese from a solution of water-soluble salts of nickel, cobalt and manganese by contacting such solution with a solution of alkali metal hydroxide, (b) adding an aqueous solution of an aluminate or titanate and thereby co-precipitating a layer of a mixed hydroxide of nickel and cobalt and manganese and aluminum or titanium on the particles formed in step (a), (c) removing particles of (NiCoMnAl)(OH)or (NiCoMnTi)(OH)so obtained and drying them in the presence of oxygen, (d) mixing the particles obtained in step (c) with at least one Li compound selected from LiO, LiOH and LiCO, (e) calcining the mixture obtained according to step (d) at a temperature in the range of from 920 to 950° C.

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