logo

For the Inventor, By the Inventor

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 12308429 B1

PDFFull Text
Date of Patent:
May. 20, 2025

Filed:

Oct. 07, 2022

Lithium secondary battery

Applicant:

Lg Energy Solution, Ltd., Seoul, KR;

Inventors:

Byoung Gu Lee, Daejeon, KR;

Duk Hyun Ryu, Daejeon, KR;

Kwan Hee Lee, Daejeon, KR;

Myung An Lee, Daejeon, KR;

Sue Jin Kim, Daejeon, KR;

Assignee:

LG ENERGY SOLUTION, LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Carlos Barcena

Int. Cl.
CPC ...
H01M 4/525 (2010.01); C01G 53/50 (2025.01); H01M 4/131 (2010.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/36 (2006.01); H01M 4/48 (2010.01); H01M 4/505 (2010.01); H01M 4/587 (2010.01); H01M 10/052 (2010.01); H01M 10/0587 (2010.01); H01M 50/107 (2021.01); H01M 50/533 (2021.01); H01M 50/586 (2021.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 53/50 (2013.01); H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/364 (2013.01); H01M 4/483 (2013.01); H01M 4/505 (2013.01); H01M 4/587 (2013.01); H01M 10/052 (2013.01); H01M 10/0587 (2013.01); H01M 50/107 (2021.01); H01M 50/533 (2021.01); H01M 50/586 (2021.01); C01P 2002/50 (2013.01); C01P 2004/03 (2013.01); C01P 2004/52 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/40 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01);
Abstract

A lithium secondary battery which includes an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are wound in one direction, a battery can in which the electrode assembly is accommodated, and a sealing body which seals an open end of the battery can. The positive electrode plate includes positive electrode active material comprising single particles, quasi-single particles, or a combination thereof, and the positive electrode active material has Dof 1.0 μm or more.

Find Patent Forward Citations

Loading…