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.:
Date of Patent:
Jan. 07, 2025
Filed:
Apr. 15, 2020
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventors:
Kensaku Horie, Niihama, JP;
Yuichiro Azuma, Osaka, JP;
Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0525 (2010.01); H01M 50/417 (2021.01); H01M 50/423 (2021.01); H01M 50/451 (2021.01); H01M 50/489 (2021.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); H01M 50/417 (2021.01); H01M 50/423 (2021.01); H01M 50/451 (2021.01); H01M 50/489 (2021.01);
Abstract
An aspect of the present invention provides a nonaqueous electrolyte secondary battery porous layer that has both favorable ion permeability and favorable peeling strength. A nonaqueous electrolyte secondary battery porous layer in accordance with an aspect of the present invention includes: a resin; and a filler, the nonaqueous electrolyte secondary battery porous layer having a thickness of less than 8.0 μm, the nonaqueous electrolyte secondary battery porous layer having a surface roughness (Ra) of not more than 0.15 μm.