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:
Nov. 13, 2018

Filed:

Dec. 09, 2015
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Hyun Woong Yun, Daejeon, KR;

Byung Hun Oh, Daejeon, KR;

Eun Kyung Kim, Daejeon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/131 (2010.01); C01B 32/168 (2017.01); H01M 10/0525 (2010.01); H01M 10/052 (2010.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/625 (2013.01); C01B 32/168 (2017.08); H01M 4/131 (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); C01B 2202/02 (2013.01); C01B 2202/04 (2013.01); C01B 2202/06 (2013.01); C01B 2202/22 (2013.01); C01B 2202/34 (2013.01); H01M 10/052 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01); Y10S 977/75 (2013.01); Y10S 977/752 (2013.01); Y10S 977/842 (2013.01); Y10S 977/948 (2013.01);
Abstract

Provided is a positive electrode material slurry for secondary battery including a positive electrode active material, a conductive agent, a binder, and a solvent, wherein the conductive agent includes a first conductive agent and a second conductive agent having different particle shapes and sizes. Since the conductive agent of the present invention may be uniformly dispersed in the positive electrode active material by including a point-type conductive agent, as the first conductive agent, and carbon nanotubes (CNTs) subjected to a grinding process as the linear second conductive agent, conductivity of an electrode to be prepared may be improved and a secondary battery having improved high-rate discharge capacity characteristics may be provided.


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