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:
Mar. 09, 2021
Filed:
Oct. 16, 2015
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Hiroya Umeyama, Okazaki, JP;
Harunari Shimamura, Toyonaka, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 10/0525 (2010.01); H01M 10/0587 (2010.01);
U.S. Cl.
CPC ...
H01M 2/162 (2013.01); H01M 2/16 (2013.01); H01M 2/1606 (2013.01); H01M 10/0525 (2013.01); H01M 10/0587 (2013.01);
Abstract
Provided is a separator for a battery in which, when a ratio of a total length of line segments (Sa), in which an arbitrary straight line (La) intersects with resin fibers (), to a total length of the straight line (La) on a cross-section of the separator in a thickness direction (TD) is represented by s (%) and when a thickness of the separator is represented by d (μm), 0<s≤100, 3≤d≤50, and 300≤d×s≤1500 are satisfied, the straight line (La) being parallel to a first main surface () and crossing the cross-section.