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. 08, 2024
Filed:
May. 07, 2020
Lg Energy Solution, Ltd., Seoul, KR;
Oh Byong Chae, Daejeon, KR;
Ye Ri Kim, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
A device for producing a negative electrode, which includes: a pre-lithiation bath containing a pre-lithiation solution, which is sequentially divided into an impregnation section, a pre-lithiation section, and an aging section; a negative electrode roll present outside the pre-lithiation solution, wherein the negative electrode roll is configured to allow a negative electrode structure to be wound and unwound; and one or more pre-lithiation rolls which are present inside the pre-lithiation solution, wherein the one or more pre-lithiation rolls allow the negative electrode structure unwound from the negative electrode roll to move in the pre-lithiation bath, wherein the pre-lithiation roll includes an inner ring, an outer ring which is formed on the inner ring and is rotatable, and a rolling element present between the inner ring and the outer ring, and the outer ring in the pre-lithiation roll comprises a non-conductor.