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:
May. 27, 2025
Filed:
Aug. 13, 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
A device for pre-lithiation including a pre-lithiation reactor sequentially divided into an impregnation section, a pre-lithiation section, and an aging section. The pre-lithiation reactor accommodates a pre-lithiation solution through which a negative electrode structure is moved. A negative electrode roll is arranged outside the pre-lithiation solution, and the pre-movement negative electrode structure is wound. A lithium metal counter electrode is arranged in the pre-lithiation solution of the pre-lithiation section, and is arranged to be spaced apart from the negative electrode structure to face the negative electrode structure moving in the pre-lithiation solution. A charging and discharging unit is connected to the negative electrode structure and connected to the lithium metal counter electrode. The lithium metal counter electrode is tilted and a separation distance between the lithium metal counter electrode and the negative electrode structure gradually increases in the moving direction of the negative electrode structure.