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:
Sep. 17, 2019

Filed:

Nov. 30, 2011
Applicant:

Taku Matsumura, Yokohama, JP;

Inventor:

Taku Matsumura, Yokohama, JP;

Assignee:

ZEON CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 2/162 (2013.01); H01M 2/16 (2013.01); H01M 2/166 (2013.01); H01M 2/1633 (2013.01); H01M 2/1686 (2013.01); H01M 10/0525 (2013.01); Y02W 30/84 (2015.05);
Abstract

To provide a secondary battery porous membrane which is produced using a slurry for secondary battery porous membranes having excellent coatability and excellent dispersibility of insulating inorganic particles and is capable of improving the cycle characteristics of a secondary battery that is obtained using the secondary battery porous membrane, said secondary battery porous membrane having high flexibility and low water content and being capable of preventing particle fall-off. A slurry for secondary battery porous membranes of the present invention is characterized by containing: insulating inorganic particles, each of which has a surface functional group that is selected from the group consisting of an amino group, an epoxy group, a mercapto group and an isocyanate group; a binder which has a reactive group that is crosslinkable with the surface functional group; and a solvent.


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