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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 10892488 B1

PDFFull Text
Date of Patent:
Jan. 12, 2021

Filed:

Jan. 17, 2018

Electrode active material, lithium secondary battery containing the electrode active material, and method of preparing the electrode active material

Applicants:

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

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

Inventors:

Dongjin Ham, Hwaseong-si, KR;

Jayhyok Song, Yongin-si, KR;

Donghee Yeon, Seoul, KR;

Jinhwan Park, Seoul, KR;

Daechul Yoo, Incheon, KR;

Assignees:

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

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

Attorney:

Cantor Colburn LLP

Primary Examiner:

Laura Weiner

Int. Cl.
CPC ...
H01M 4/58 (2010.01); H01M 4/04 (2006.01); H01M 10/052 (2010.01); H01M 4/88 (2006.01); H01M 10/054 (2010.01); H01M 4/86 (2006.01); H01M 4/36 (2006.01); H01M 4/525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/5825 (2013.01); H01M 4/0459 (2013.01); H01M 4/366 (2013.01); H01M 4/525 (2013.01); H01M 4/8657 (2013.01); H01M 4/8882 (2013.01); H01M 10/052 (2013.01); H01M 10/054 (2013.01); H01M 2004/028 (2013.01);
Abstract

An electrode active material includes: a core active material having a layered structure and capable of reversibly incorporating and deincorporating lithium; a dopant including boron and a first metal element, wherein the dopant is in the core active material; and a nanostructure disposed on a surface of the core active material and including a metal borate compound including a second metal element, wherein the second metal element is the same as the first metal element.

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