公开(公告)号：US20190221811A1

公开(公告)日：2019-07-18

申请号：US16319072

申请日：2017-11-09

Applicant: LG CHEM, LTD.

Inventor： Tae-Kyu KIM ,  Cha-Hun KU ,  Won-Nyeon KIM

IPC: H01M2/16 ,  H01M10/058 ,  H01M10/0565 ,  H01M2/14 ,  H01M10/052

CPC classification number: H01M2/1673 ,  B32B37/0046 ,  H01M2/145 ,  H01M2/166 ,  H01M2/1686 ,  H01M10/052 ,  H01M10/0565 ,  H01M10/058

Abstract: The present disclosure provides a method for manufacturing a unit cell including the steps of: preparing an electrode and a separator individually, wherein the separator includes a porous polymer substrate and a porous coating layer disposed on at least one surface of the porous polymer substrate and including a mixture of inorganic particles with a binder polymer; applying a lamination solvent to the surface of the separator to be bound with the electrode; and carrying out lamination of the electrode with the separator before the lamination solvent is dried. The method according to the present disclosure can solve the problem of shrinking of a separator occurring in the conventional lamination process.