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.

Date of Patent:
Apr. 29, 2025

Filed:

Sep. 03, 2020
Applicant:

Lg Energy Solution, Ltd., Seoul, KR;

Inventors:

Seung-Hae Hwang, Daejeon, KR;

Ye-Ri Kim, Daejeon, KR;

Oh-Byong Chae, Daejeon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/02 (2005.12); H01M 4/04 (2005.12); H01M 4/139 (2009.12);
U.S. Cl.
CPC ...
H01M 4/0459 (2012.12); H01M 4/139 (2012.12); H01M 2004/027 (2012.12);
Abstract

A pre-lithiation apparatus which prevents an electrode from being damaged by the byproducts produced by contact between a lithium source, such as a lithium metal sheet or lithium metal powder, and an electrolyte for pre-lithiation. The pre-lithiation apparatus includes a first reaction vessel comprising a first electrolyte and a first organic solvent and a second reaction vessel comprising a second electrolyte and a second organic solvent, wherein the first electrolyte of the first reaction vessel and the second electrolyte of the second reaction vessel are linked to each other by a salt bridge. A negative electrode to be pre-lithiated is dipped at least partially in the first electrolyte of the first reaction vessel, and a lithium source capable of supplying lithium ions is dipped at least partially in the second electrolyte of the second reaction vessel.


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