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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 10985375 B1

PDFFull Text
Date of Patent:
Apr. 20, 2021

Filed:

Sep. 08, 2017

Slurry composition for non-aqueous secondary battery positive electrode, positive electrode for non-aqueous secondary battery, and non-aqueous secondary battery

Applicant:

Zeon Corporation, Tokyo, JP;

Inventors:

Koji Annaka, Tokyo, JP;

Takuya Ishii, Tokyo, JP;

Assignee:

ZEON CORPORATION, Tokyo, JP;

Attorney:

Kenja IP Law PC

Primary Examiner:

Raymond Alejandro

Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/62 (2006.01); H01M 4/525 (2010.01); H01M 4/505 (2010.01); H01M 10/0525 (2010.01); C08F 220/48 (2006.01); C08K 3/04 (2006.01); C08K 7/06 (2006.01); C08K 3/22 (2006.01); C08F 2/20 (2006.01); H01M 10/0566 (2010.01); H01M 4/1391 (2010.01); H01M 4/131 (2010.01); C08F 2/22 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/622 (2013.01); C08F 2/20 (2013.01); C08F 2/22 (2013.01); C08F 220/48 (2013.01); C08K 3/04 (2013.01); C08K 3/22 (2013.01); C08K 7/06 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/62 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 10/0566 (2013.01); C08F 2800/20 (2013.01); C08K 2003/2293 (2013.01); C08K 2201/001 (2013.01); H01M 2004/028 (2013.01);
Abstract

Provided is a slurry composition for a non-aqueous secondary battery positive electrode that has excellent stability and enables formation of a positive electrode mixed material layer that causes a non-aqueous secondary battery to display excellent output characteristics. The slurry composition contains a positive electrode active material and a copolymer. The proportion constituted by nickel among transition metal in the positive electrode active material is at least 30.0 mol % and not more than 100.0 mol %. The copolymer includes a nitrile group-containing monomer unit in a proportion of at least 70.0 mass % and not more than 96.0 mass % and a basic group-containing monomer unit in a proportion of at least 0.1 mass % and not more than 5.0 mass %.

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