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:
Apr. 25, 2023
Filed:
Feb. 15, 2018
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 50/454 (2021.01); H01M 50/491 (2021.01); H01M 50/414 (2021.01); H01M 50/423 (2021.01); H01M 50/451 (2021.01); H01M 50/489 (2021.01);
U.S. Cl.
CPC ...
H01M 50/454 (2021.01); H01M 50/414 (2021.01); H01M 50/423 (2021.01); H01M 50/451 (2021.01); H01M 50/491 (2021.01); H01M 50/489 (2021.01);
Abstract
At low cost, a porous film has high thermal film rupture resistance and outstanding battery characteristics. The porous film has a porous layer on at least one surface of a porous substrate, and if the surface porosity of the porous layer is defined as α and the cross-sectional void ratio of the porous layer is defined as β, then α/β does not exceed 90%.
Kai, Nobuyasu. (2023). Porous film, separator for rechargeable battery, and rechargeable battery (U.S. Patent No. 11637351). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11637351
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile