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:
Feb. 21, 2023
Filed:
Apr. 10, 2018
Applicant:
Nippon Kodoshi Corporation, Kochi, JP;
Inventors:
Assignee:
NIPPON KODOSHI CORPORATION, Kochi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 50/44 (2021.01); H01G 9/02 (2006.01); H01G 11/52 (2013.01); H01M 10/0525 (2010.01); H01M 50/429 (2021.01);
U.S. Cl.
CPC ...
H01M 50/44 (2021.01); H01G 9/02 (2013.01); H01G 11/52 (2013.01); H01M 10/0525 (2013.01); H01M 50/4295 (2021.01);
Abstract
A heat-resistant separator for an electrochemical element in which the thickness of the separator is reduced while maintaining the balance between the short circuit resistance, resistance, electrolyte impregnation performance, and electrolyte retention performance of the separator. A separator for an electrochemical element includes beaten cellulose fibers, wherein the value obtained by dividing the average value for the distance between the center point of a cellulose stem fiber constituting part of the separator and the center point of another cellulose stem fiber nearest to said cellulose stem fiber by the thickness of the separator is 0.80 to 1.35.