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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 11196051 B1

PDFFull Text
Date of Patent:
Dec. 07, 2021

Filed:

Nov. 30, 2016

Positive electrode for secondary battery and secondary battery including the same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Young Geun Choi, Daejeon, KR;

Hyo Sik Kim, Daejeon, KR;

Joo Yul Baek, Daejeon, KR;

Song Taek Oh, Daejeon, KR;

Assignee:

LG Chem, Ltd.;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Zhongqing Wei

Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/36 (2006.01); H01M 4/525 (2010.01); H01M 4/505 (2010.01); H01M 4/04 (2006.01); H01M 4/1391 (2010.01); H01M 10/0525 (2010.01); H01M 4/131 (2010.01); C01B 32/158 (2017.01); H01M 4/02 (2006.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01);
U.S. Cl.
CPC ...
H01M 4/625 (2013.01); C01B 32/158 (2017.08); H01M 4/0404 (2013.01); H01M 4/0416 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); Y10S 977/742 (2013.01); Y10S 977/842 (2013.01); Y10S 977/948 (2013.01);
Abstract

Provided are a positive electrode for a secondary battery which includes a positive electrode collector, a porous positive electrode active material layer disposed on a surface of the positive electrode collector and including a positive electrode active material and first carbon nanotubes, and a conductive layer disposed on a surface of the positive electrode active material layer, wherein the conductive layer includes a porous network structure formed by a plurality of second carbon nanotubes and has a porosity equal to or greater than a porosity of the positive electrode active material layer +10 vol %, and a secondary battery including the same.

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