US 12,224,425 B2
Magnetism alignment apparatus for negative electrodes and method for manufacturing negative electrode using same
Jong Su Yoon, Daejeon (KR); Taek Soo Lee, Daejeon (KR); Jin Ho Cho, Daejeon (KR); Shin Wook Jeon, Daejeon (KR); and Young Gon Kim, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 18/713,336
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Sep. 13, 2023, PCT No. PCT/KR2023/013688
§ 371(c)(1), (2) Date May 24, 2024,
PCT Pub. No. WO2024/058534, PCT Pub. Date Mar. 21, 2024.
Claims priority of application No. 10-2022-0116154 (KR), filed on Sep. 15, 2022.
Prior Publication US 2024/0396014 A1, Nov. 28, 2024
Int. Cl. H01M 4/1393 (2010.01); H01F 7/02 (2006.01); H01M 4/133 (2010.01); H01M 4/587 (2010.01); H01M 4/02 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/1393 (2013.01) [H01F 7/0247 (2013.01); H01M 4/133 (2013.01); H01M 4/587 (2013.01); H01M 2004/027 (2013.01); H01M 10/0525 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A magnetic alignment device for a negative electrode in which a negative electrode slurry including a carbon-based negative electrode active material is applied to a negative electrode sheet applied on a negative electrode collector to orient the carbon-based negative electrode active material by applying a magnetic force, the magnetic alignment device for negative electrode, comprising:
a first magnet part and a second magnet part arranged at an upper portion and a lower portion of traveling electrode sheet, respectively;
a loading amount measuring part arranged upstream of the first magnet part and the second magnet part relative to the travelling direction of the electrode sheet, and measuring the loading amount of the negative electrode slurry arranged on the electrode sheet; and
a control part for adjusting a separation distance between the first magnet part and the second magnet part according to a loading amount of the negative electrode slurry measured by the loading amount measuring part.