公开(公告)号：US12126008B2

公开(公告)日：2024-10-22

申请号：US17054576

申请日：2019-08-30

Applicant: LG Energy Solution, Ltd.

Inventor： Jiwon Min ,  Sun Kyu Kim ,  Kyung Eun Sun

IPC: H01M4/139 ,  H01M4/02 ,  H01M4/04 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/139 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/366 ,  H01M4/621 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021

Abstract: The present disclosure relates to a multi-layer electrode including a current collector; and a multi-layer electrode material layer comprising n active material layers (wherein, n≥2) formed on at least one surface of the current collector, wherein each of the active material layers contains an electrode active material and a binder, the binders in the respective active material layers are different from each other, and the multi-layer electrode material layer has a uniform porosity from first active material layer closest to the current collector to nth active material layer furthest from the current collector. The present disclosure also relates to a lithium secondary battery including the same.