US 12,322,543 B2
Magnetic alignment device for anode, and anode manufacturing method using same
Jong Su Yoon, Daejeon (KR); Young Gon Kim, Daejeon (KR); Taek Soo Lee, Daejeon (KR); Jin Ho Cho, Daejeon (KR); and Shin Wook Jeon, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 18/714,927
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Sep. 21, 2023, PCT No. PCT/KR2023/014432
§ 371(c)(1), (2) Date May 30, 2024,
PCT Pub. No. WO2024/080618, PCT Pub. Date Apr. 18, 2024.
Claims priority of application No. 10-2022-0131352 (KR), filed on Oct. 13, 2022.
Prior Publication US 2024/0420876 A1, Dec. 19, 2024
Int. Cl. H01F 7/02 (2006.01); H01M 4/04 (2006.01); H01M 4/133 (2010.01); H01M 4/1393 (2010.01); H01M 4/02 (2006.01)
CPC H01F 7/0273 (2013.01) [H01M 4/0404 (2013.01); H01M 4/133 (2013.01); H01M 4/1393 (2013.01); H01M 2004/027 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A magnetic alignment device for negative electrode manufacturing to align carbon-based negative electrode active materials, comprising:
a first magnet part and a second magnet part positioned at an upper and lower portion, respectively, along a transfer direction of a negative electrode current collector to which a negative electrode slurry including a carbon-based negative electrode active material is applied to apply a magnetic force; and
a drying part for drying the negative electrode slurry applied with the magnetic force by the first magnet part and the second magnet part;
wherein the first magnet part and the second magnet part are each divided into a first region located upstream and a second region located downstream based on the transfer direction of the negative electrode current collector, and
the second region is applied with a magnetic field having a stronger magnetic force than a magnetic field applied to the first region.