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:
Aug. 23, 2022
Filed:
Jan. 17, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventor:
Yeon-Suk Hong, Daejeon, KR;
Assignee:
LG Energy Solution, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/449 (2021.01); H01M 50/417 (2021.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 50/449 (2021.01); H01M 10/0525 (2013.01); H01M 50/417 (2021.01);
Abstract
Disclosed is a separator for an electrochemical device, interposed between a cathode and an anode to prevent a short circuit between both electrodes. The separator is provided with through-holes having a diameter of 1-20 μm in the thickness direction, and the surfaces of the through-holes are sealed by being coated with a thermoplastic polymer having a melting point equal to or higher than 70° C. and lower than 130° C. An electrochemical device including the separator is also disclosed. The separator can prevent rapid ignition of an electrochemical device in advance.