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:
Sep. 24, 2024
Filed:
Feb. 06, 2020
Zeon Corporation, Tokyo, JP;
Keiichiro Tanaka, Tokyo, JP;
ZEON CORPORATION, Tokyo, JP;
Abstract
Provided is a technique relating to a functional layer for an electrochemical device that has excellent process adhesiveness and heat resistance and enables good electrolyte solution injectability. The functional layer contains inorganic particles and a particulate polymer. In this functional layer, a proportion of area occupied by the inorganic particles per unit area of a surface of the functional layer in plan view of the surface of the functional layer is more than 90%, the particulate polymer has a volume-average particle diameter of not less than 1.0 μm and not more than 10.0 μm, and the volume-average particle diameter of the particulate polymer is larger than the thickness of an inorganic particle layer.