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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 11623195 B1

PDFFull Text
Date of Patent:
Apr. 11, 2023

Filed:

Jan. 12, 2018

Reaction apparatus and method

Applicants:

Posco, Pohang-si, KR;

Research Institute of Industrial Science & Technology, Pohang-si, KR;

Inventor:

Ki-Sung You, Pohang-si, KR;

Assignees:

POSCO HOLDINGS INC., Seoul, KR;

RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, Pohang-si, KR;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Lessanework Seifu

Int. Cl.
CPC ...
B01J 4/00 (2006.01); B01J 19/00 (2006.01); B01J 14/00 (2006.01); C01G 53/00 (2006.01); H01M 4/131 (2010.01); H01M 4/1391 (2010.01); H01M 4/525 (2010.01); B01F 27/191 (2022.01); B01F 23/43 (2022.01); B01F 27/91 (2022.01); B01F 27/113 (2022.01); B01F 35/21 (2022.01); B01F 35/71 (2022.01); B01F 101/59 (2022.01);
U.S. Cl.
CPC ...
B01J 4/002 (2013.01); B01F 23/43 (2022.01); B01F 27/113 (2022.01); B01F 27/191 (2022.01); B01F 27/91 (2022.01); B01F 35/2112 (2022.01); B01F 35/7179 (2022.01); B01J 14/00 (2013.01); B01J 19/0066 (2013.01); C01G 53/006 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/525 (2013.01); B01F 2101/59 (2022.01); C01P 2006/40 (2013.01);
Abstract

Provided are an apparatus and a method for reaction for use in a co-precipitation reaction for preparing a catalyst or a cathode active material for a lithium secondary battery, which injects a raw material (a solution) at least between impellers according to the solution level in a vessel, thereby making a stirring speed uniform and, in particular, minimizing a concentration difference between solutions. The apparatus for the reaction may comprise: a reaction vessel; a stirring means provided inside the reaction vessel and having multistage impellers; and a raw material injecting means, comprising at least one injection nozzle connected to the reaction vessel, for injecting a raw material at least between impellers.

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