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:
May. 23, 2023
Filed:
Feb. 19, 2021
Applicant:
Ningde Amperex Technology Limited, Ningde, CN;
Inventors:
KeBing Guo, Ningde, CN;
DongYang Guo, Ningde, CN;
GengJin Kong, Ningde, CN;
XingHua Tao, Ningde, CN;
Assignee:
NINGDE AMPEREX TECHNOLOGY LIMITED, Fujian, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/454 (2021.01); H01M 10/0525 (2010.01); H01M 50/449 (2021.01); H01M 50/446 (2021.01); H01M 50/429 (2021.01); H01M 50/414 (2021.01); H01M 50/42 (2021.01); H01M 50/443 (2021.01); H01M 50/451 (2021.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); H01M 50/414 (2021.01); H01M 50/42 (2021.01); H01M 50/429 (2021.01); H01M 50/443 (2021.01); H01M 50/446 (2021.01); H01M 50/449 (2021.01); H01M 50/451 (2021.01); H01M 50/454 (2021.01);
Abstract
A separator including a porous substrate and a porous layer. The porous layer is disposed on a surface of the porous substrate and includes inorganic particles and a binder. The porous substrate has an absolute plastic deformation rate in a first direction ranging from about 40% to about 1800%. By using the separator provided in the present application, the safety performance of lithium ion batteries is improved.