公开(公告)号：US20190051924A1

公开(公告)日：2019-02-14

申请号：US15754335

申请日：2017-04-25

Applicant: LG CHEM, LTD.

Inventor： Sung Jong KIM ,  Tae Kyu KIM ,  Kyung Taek KIM ,  Dong Hyun KIM ,  Kyung Jae LEE ,  Cha Hun KU ,  Eui Kyung LEE

IPC: H01M10/04 ,  H01M2/16 ,  H01M2/14

CPC classification number: H01M10/04 ,  H01M2/145 ,  H01M2/1673 ,  H01M10/0413 ,  H01M10/0436

Abstract: The present invention relates to a method for manufacturing a secondary battery. The method comprises: a first process (S10) of manufacturing an incomplete electrode assembly; a second process (S20) of partially pressing the incomplete electrode assembly to manufacture a complete electrode assembly in which a bonding portion and a nonbonding portion coexist; a third process (S30) of accommodating the complete electrode assembly into a case; a fourth process (S40) of injecting an electrolyte through an opening of the case to impregnate the electrolyte into the electrode assembly; a fifth process (S50) of sealing an unsealed surface in which the opening of the case is formed to manufacture a secondary battery; and a sixth process (S60) of heating and pressing an entire surface of the secondary battery to bond the nonbonding portion of the interface between the electrode and the separator.