Invention Grant
- Patent Title: Method of manufacturing electrode for secondary battery comprising pre-slitting process
-
Application No.: US16071379Application Date: 2017-08-11
-
Publication No.: US11329272B2Publication Date: 2022-05-10
- Inventor: Sang Youn Park , Kyu Hyun Choi , Jin Hak Kong
- Applicant: LG CHEM, LTD.
- Applicant Address: KR Seoul
- Assignee: LG CHEM, LTD.
- Current Assignee: LG CHEM, LTD.
- Current Assignee Address: KR Seoul
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: KR10-2016-0130087 20161007
- International Application: PCT/KR2017/008719 WO 20170811
- International Announcement: WO2018/066806 WO 20180412
- Main IPC: H01M4/04
- IPC: H01M4/04 ; H01M4/139 ; H01M4/66 ; H01M4/13 ; H01M4/26

Abstract:
Disclosed herein is a method of manufacturing an electrode for a secondary battery, including: a process of continuously forming two or more slurry coated parts on one surface or both surfaces of metal foil in a second direction which is a longitudinal direction of the metal foil so that a non-coated part which an electrode slurry is not coated is positioned between the slurry coated parts coated with the electrode slurry including an electrode active material in a first direction which is a transverse direction of the metal foil; a process of forming mixture coated parts by drying the slurry coated parts and rolling by a roller; and a process of forming electrode strips by slitting the non-coated part in the second direction, wherein before continuously forming the slurry coated parts, while continuously forming the slurry coated parts, or between continuously forming the slurry coated parts and forming the mixture coated parts, the method further includes a process of forming non-continuous linear slits in the non-coated part of the metal foil in the second direction.
Information query