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:
Jul. 05, 2022
Filed:
Apr. 18, 2017
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Kenichi Shimura, Tokyo, JP;
Kazuhiko Inoue, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 50/431 (2021.01); H01M 10/04 (2006.01); H01M 50/411 (2021.01); H01M 50/423 (2021.01); H01M 50/446 (2021.01);
U.S. Cl.
CPC ...
H01M 50/446 (2021.01); H01M 10/049 (2013.01); H01M 50/431 (2021.01); H01M 50/411 (2021.01); H01M 50/423 (2021.01);
Abstract
Provided is a battery comprising a separator comprising inorganic particles for preventing a short-circuit, wherein the inorganic particles are not removed readily from the separator. This battery is characterized by comprising a separator comprising a base material resin having voids and an inorganic particle having a surface (A) facing the void and a surface (B) in contact with the resin, wherein the length of the surface (A) is 50% or more of the length of the outer periphery of the particle in a cross-sectional SEM photograph of the separator.