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:
Jun. 03, 2025
Filed:
Sep. 04, 2020
Lg Energy Solution, Ltd., Seoul, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
A method for pre-lithiation and pre-sodiation of a negative electrode, including the steps of: interposing a first separator between a lithium ion-supplying metal sheet and a negative electrode to prepare a first simple cell. Then, dipping the first simple cell in an electrolyte for pre-lithiation. Next, carrying out a primary electrochemical charging of the first simple cell dipped in the electrolyte for pre-lithiation to obtain a pre-lithiated negative electrode. Then, interposing a second separator between a sodium ion-supplying metal sheet and the pre-lithiated negative electrode to prepare to prepare a second simple cell. Next, dipping the second simple cell in an electrolyte for pre-sodiation; and carrying out secondary electrochemical charging of the second simple cell dipped in the electrolyte for pre-sodiation to obtain a pre-lithiated and pre-sodiated negative electrode. A pre-lithiated/pre-sodiated negative electrode obtained by the method and a lithium secondary battery including the same are also disclosed.