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:
Jul. 15, 2025
Filed:
May. 29, 2020
Applicant:
Zeon Corporation, Tokyo, JP;
Inventors:
Koji Annaka, Tokyo, JP;
Masanobu Sato, Tokyo, JP;
Assignee:
ZEON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 50/449 (2021.01); H01M 50/411 (2021.01); H01M 50/443 (2021.01); H01M 50/446 (2021.01); H01M 50/489 (2021.01);
U.S. Cl.
CPC ...
H01M 50/449 (2021.01); H01M 50/411 (2021.01); H01M 50/443 (2021.01); H01M 50/446 (2021.01); H01M 50/489 (2021.01);
Abstract
A functional layer-equipped separator for an electrochemical device includes a separator substrate and a functional layer for an electrochemical device disposed on at least one surface of the separator substrate. The functional layer for an electrochemical device contains inorganic particles and a particulate polymer. A surface of the functional layer for an electrochemical device has a maximum height Sz of 2.5 μm or more. The functional layer for an electrochemical device includes one or more protrusions each containing the particulate polymer at a surface thereof.