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.

Date of Patent:
Mar. 03, 2020

Filed:

Jul. 17, 2017
Applicants:

Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;

Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;

Laminar Co., Ltd, Seongnam-si, Gyeonggi-do, KR;

Inventors:

Youhwan Son, Seongnam-si, KR;

Jongpal Hong, Seongnam-si, KR;

Assignees:

SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;

SAMSUNG SDI CO., LTD., Gyeonggi-Do, KR;

LAMINAR CO., LTD, Gyeonggi-Do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/485 (2010.01); H01M 4/04 (2006.01); H01M 4/1391 (2010.01); H01M 4/525 (2010.01); C01G 53/00 (2006.01); H01M 4/36 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/485 (2013.01); C01G 53/50 (2013.01); H01M 4/0471 (2013.01); H01M 4/1391 (2013.01); H01M 4/366 (2013.01); H01M 4/525 (2013.01); C01P 2004/80 (2013.01); H01M 2004/028 (2013.01);
Abstract

A method of manufacturing a cathode active material, according to the inventive concept includes: disposing a lithium transition metal oxide and a washing liquid into a reaction chamber; contacting the lithium transition metal oxide with the washing liquid to wash the lithium transition metal oxide and form a washed lithium transition metal oxide; disposing a layered double hydroxide into the reaction chamber to form a coating of the layered double hydroxide on a surface of the washed lithium transition metal oxide to provide a coated lithium transition metal oxide; and heat treating the coated lithium transition metal oxide to form a cathode active material, wherein the cathode active material comprises a layered double oxide coated lithium transition metal oxide, and wherein the contacting the lithium transition metal oxide with the washing liquid and the forming of the coated lithium transition metal oxide are consecutively performed in a single space.


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