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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 11258066 B1

PDFFull Text
Date of Patent:
Feb. 22, 2022

Filed:

Feb. 02, 2018

Binder agent composition for lithium battery

Applicant:

Fujifilm Wako Pure Chemical Corporation, Osaka, JP;

Inventors:

Hironori Mizuta, Saitama, JP;

Kazuki Takimoto, Saitama, JP;

Hiromi Watahiki, Saitama, JP;

Kaho Sugimoto, Saitama, JP;

Takatoshi Matsuura, Saitama, JP;

Kuniaki Okamoto, Saitama, JP;

Nobutaka Shimamura, Saitama, JP;

Assignee:

FUJIFILM Wako Pure Chemical Corporation, Osaka, JP;

Attorney:

Hamre, Schumann, Mueller & Larson, P.C.

Primary Examiner:

Carlos Barcena

Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/04 (2006.01); H01M 4/134 (2010.01); H01M 4/38 (2006.01); H01M 4/60 (2006.01); H01M 4/66 (2006.01); H01M 10/052 (2010.01); H01M 10/0525 (2010.01); C08F 290/06 (2006.01); C08K 5/053 (2006.01); C08L 33/02 (2006.01); H01M 10/0565 (2010.01);
U.S. Cl.
CPC ...
H01M 4/622 (2013.01); C08F 290/06 (2013.01); C08K 5/053 (2013.01); C08L 33/02 (2013.01); H01M 4/0404 (2013.01); H01M 4/134 (2013.01); H01M 4/386 (2013.01); H01M 4/608 (2013.01); H01M 4/663 (2013.01); H01M 10/052 (2013.01); H01M 10/0565 (2013.01);
Abstract

An object of the present invention is to provide an excellent binder agent composition solving problems such as the decrease in a charge/discharge capacity that occurs in a case where a silicon-containing active material is used, a slurry composition and an electrode in which the binder agent composition is used, and a method for preparing the electrode. The present invention relates to 'a binder agent composition containing (A) one or more kinds of polymers containing polyacrylic acid, (B) a bivalent to decavalent alcohol, and (C) water', 'a slurry composition for lithium batteries, containing 1) a silicon-containing active material, 2) a conductive assistant, and 3) the binder agent composition', “an electrode for lithium batteries that has 1) a silicon-containing active material, 2) a conductive assistant, 3) a binder agent derived from the binder agent composition, and 4) a current collector”, and “a method for preparing an electrode for lithium batteries, including coating a current collector with the slurry composition and drying the slurry composition after the coating”.

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