公开(公告)号：US20210265708A1

公开(公告)日：2021-08-26

申请号：US17261417

申请日：2019-07-19

Applicant: LG CHEM, LTD.

Inventor： Hae Jin LIM ,  Min KIM ,  Sang Uck KIM

IPC: H01M50/538 ,  H01M10/0587 ,  H01M10/0525 ,  H01M10/04

Abstract: An electrode assembly including a positive electrode sheet having a positive electrode active material portion that is an area on which a positive electrode active material is stacked on a positive electrode collector and a positive electrode non-coating portion, a positive electrode tab disposed on the positive electrode non-coating portion, a negative electrode sheet having a negative electrode active material portion that is an area on which a negative electrode active material is stacked on a negative electrode collector and a negative electrode non-coating portion; a negative electrode tab disposed on the negative electrode non-coating portion, and a separator insulating the positive electrode sheet and the negative electrode sheet from each other is provided. The positive electrode non-coating portion includes a first positive electrode non-coating portion and a second positive electrode non-coating portion, which are provided on two portions spaced apart from each other on the positive electrode sheet.