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:
Apr. 14, 2026
Filed:
Sep. 03, 2021
Lg Energy Solution, Ltd., Seoul, KR;
Seo Young Jeon, Daejeon, KR;
Ye Ri Kim, Daejeon, KR;
Oh Byong Chae, Daejeon, KR;
Seung Hae Hwang, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
An apparatus for pre-lithiating a negative electrode includes a pre-lithiation reactor sequentially divided into an impregnation section, a pre-lithiation section and an aging section, and accommodates a pre-lithiation solution in which a negative electrode structure is moved; a negative electrode roll arranged outside the pre-lithiation solution and on which the negative electrode structure before being moved is wound; a lithium metal counter electrode arranged in the pre-lithiation solution in the pre-lithiation section and is spaced apart from the negative electrode structure by a predetermined distance to face the negative electrode structure which is moved in the pre-lithiation solution; and a charge and discharge unit connected to the negative electrode structure and the lithium metal counter electrode. A method for pre-lithiating the negative electrode is also provided.