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:
Aug. 29, 2023
Filed:
Sep. 26, 2018
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/449 (2021.01); H01M 10/0525 (2010.01); H01M 50/446 (2021.01); H01M 50/463 (2021.01); H01M 50/417 (2021.01); H01M 50/423 (2021.01); H01M 50/489 (2021.01); H01M 50/443 (2021.01); H01M 50/457 (2021.01); H01M 50/451 (2021.01); H01M 50/491 (2021.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); H01M 50/417 (2021.01); H01M 50/423 (2021.01); H01M 50/443 (2021.01); H01M 50/446 (2021.01); H01M 50/451 (2021.01); H01M 50/457 (2021.01); H01M 50/463 (2021.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01);
Abstract
A porous film includes a porous substrate, and a porous layer laminated on at least one surface of the porous substrate. The porous layer contains an organic resin different from a resin constituting the porous substrate. A height of a projection of the porous layer in an interface between the porous substrate and the porous layer is 200 nm or more, and a distance between projections is 1 μm or more.