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. 15, 2020
Filed:
Mar. 04, 2016
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 4/04 (2006.01); H01M 4/62 (2006.01); H01M 10/04 (2006.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 2/16 (2013.01); H01M 2/162 (2013.01); H01M 2/1653 (2013.01); H01M 4/0404 (2013.01); H01M 4/62 (2013.01); H01M 10/0431 (2013.01); H01M 10/052 (2013.01); H01M 2/168 (2013.01);
Abstract
The separator for secondary battery, comprising: a porous substrate having a melting temperature or a decomposition temperature of 200° C. or more; and a resin member formed at least inside of the substrate in a plane section that occupies at least a part of a plane along with a thickness direction of the substrate; wherein said resin member is coated on inner surfaces of pores without completely blocking connecting paths that connects pores of the porous member, and wherein a distribution density of the resin member becomes lower toward inside of the substrate.