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:
May. 21, 2019

Filed:

Nov. 10, 2015
Applicant:

Zeon Corporation, Chiyoda-ku, Tokyo, JP;

Inventors:

Koichi Tanihara, Miyoshi, JP;

Yasuhiro Sakashita, Nisshin, JP;

Yuya Kitagawa, Yokohama, JP;

Hiroyuki Sekine, Yokohama, JP;

Assignee:

ZEON CORPORATION, Chiyoda-ku, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/04 (2006.01); H01M 4/13 (2010.01); H01M 4/139 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/0404 (2013.01); H01M 4/139 (2013.01); H01M 4/62 (2013.01); H01M 4/622 (2013.01); H01M 10/0525 (2013.01);
Abstract

A method for producing an electrode for lithium ion secondary batteries proposed herein includes: a step of forming a binder coat layeron a collector, with the binder coat layerbeing formed so as to have a large coat amount regionA of relatively a large coating amount and a small coat amount regionB of relatively small coating amount, and the large coat amount regionA being provided at both side edge portionsE of the binder coat layer; a step of supplying granulated particles containing active material particles and a binder, onto the binder coat layer; and a step of forming an active material layer by pressing of aggregates of the granulated particles.


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