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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 11728473 B1

PDFFull Text
Date of Patent:
Aug. 15, 2023

Filed:

Feb. 26, 2021

Positive electrode for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same

Applicant:

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

Inventors:

Kiyong Ahn, Yongin-si, KR;

Taehee Kwak, Yongin-si, KR;

Jeuk Ha, Yongin-si, KR;

Seonyoung Kwon, Yongin-si, KR;

Yumi Song, Yongin-si, KR;

Eunok Oh, Yongin-si, KR;

Soonrewl Lee, Yongin-si, KR;

Naoyuki Hase, Yongin-si, KR;

Assignee:

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

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

Daniel S Gatewood

Int. Cl.
CPC ...
H01M 4/36 (2006.01); C01G 53/00 (2006.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); C01G 53/42 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); C01P 2002/52 (2013.01); C01P 2002/72 (2013.01); C01P 2002/74 (2013.01); C01P 2004/03 (2013.01); C01P 2004/50 (2013.01); C01P 2004/53 (2013.01); C01P 2004/61 (2013.01); C01P 2006/10 (2013.01); C01P 2006/40 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive electrode for a rechargeable lithium battery includes a positive active material including small particle diameter monolith particles having a particle diameter of about 1 μm to about 8 μm and including a first nickel-based lithium metal oxide, and large particle diameter secondary particles having a particle diameter of about 10 μm to about 20 μm and including a second nickel-based lithium metal oxide. An X-ray diffraction peak intensity ratio (I(003)/I(104)) of the positive electrode is greater than or equal to about 3. A rechargeable lithium battery includes the positive electrode.

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