US 11,837,709 B2
Manufacturing apparatus of electrode for secondary battery comprising heating part and manufacturing method of electrode for secondary battery comprising heating process, for heating electrode current collector before coating with electrode active material slurry
Jaewon Moon, Daejeon (KR); Hyung Seok Han, Daejeon (KR); Ki Hoon Paeng, Daejeon (KR); and Sang Myeon Lee, Daejeon (KR)
Assigned to LG Energy Solution, Ltd.
Appl. No. 17/431,944
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Nov. 30, 2020, PCT No. PCT/KR2020/017282
§ 371(c)(1), (2) Date Aug. 18, 2021,
PCT Pub. No. WO2021/118141, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 10-2019-0163112 (KR), filed on Dec. 9, 2019; and application No. 10-2020-0156456 (KR), filed on Nov. 20, 2020.
Prior Publication US 2022/0173368 A1, Jun. 2, 2022
Int. Cl. H01M 4/04 (2006.01); B05C 9/14 (2006.01); B05D 3/02 (2006.01); H01M 4/66 (2006.01); B05C 5/02 (2006.01)
CPC H01M 4/0404 (2013.01) [B05D 3/0218 (2013.01); B05C 5/0254 (2013.01); B05C 9/14 (2013.01); H01M 4/661 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An apparatus for manufacturing an electrode for a secondary battery comprising:
a roller-shaped unwinder in which a sheet-shaped current collector containing copper is wound;
a transfer part configured for continuously transferring the sheet-shaped current collector;
a heating part configured for heating the sheet-shaped current collector transferred from the unwinder at a temperature of 120° C. to 150° C. for a time (M) satisfying the following Equation 1; and
a coating part, disposed after the heating part in a moving direction of the sheet-shaped current collector, configured for coating an electrode active material slurry onto at least one surface of the heated sheet-shaped current collector, and
a drying part configured to form an electrode mixture on the at least one surface of the sheet-shaped current collector by drying the coated electrode active material slurry;

OG Complex Work Unit Math
wherein, D is a heating temperature (° C.), and
M is a heating time (minutes)
wherein the coating part is a coating die, a coating roll, or a slide-slot.