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. 19, 2019

Filed:

Dec. 02, 2016
Applicants:

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

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

Inventors:

Sungjin Ahn, Anyang-si, KR;

Jinhwan Park, Seoul, KR;

Jayhyok Song, Suwon-si, KR;

Andrei Kapylou, Suwon-si, KR;

Byongyong Yu, Suwon-si, KR;

Assignees:

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

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); H01M 4/505 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive active material includes an overlithiated lithium transition metal oxide including: a metal cation and a LiMOphase, wherein M is at least one metal selected from a Period 4 transition metal having an average oxidation number of +4 and a Period 5 transition metal having an average oxidation number of +4, and wherein an amount of the LiMOphase is less than or equal to about 20 mole percent, based on 1 mole of the overlithiated lithium transition metal oxide.


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