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:
Oct. 13, 2026
Filed:
Apr. 19, 2022
Lg Energy Solution, Ltd., Seoul, KR;
Shul Kee Kim, Daejeon, KR;
Sang Seung Oh, Daejeon, KR;
Hye Hyeon Kim, Daejeon, KR;
Chi Ho Jo, Daejeon, KR;
LG Energy Solution, Ltd., Seoul, KR;
Abstract
A method of activating a lithium secondary battery and a lithium secondary battery prepared by the same are disclosed herein. In some embodiments, a method includes charging the lithium secondary battery to a state of charge (SOC) of 90% or more in an activation step, wherein the lithium secondary battery having an electrode assembly comprising a positive electrode and an electrolyte, wherein the positive electrode comprises a mixture layer having a positive electrode active material and a positive electrode additive, and degassing the lithium secondary battery during the activation step to removing gas inside the secondary battery. The method is advantageous in that a side reaction gas can be removed by performing degassing during activation, thereby forming a stable SEI film on the electrode surface to improve battery performance and battery safety.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile