US 11,850,626 B2
Die for coating insulating liquid and method for coating insulating liquid
Chang Hun Lee, Daejeon (KR); Seong Wook Hong, Daejeon (KR); Dong Hun Song, Deajeon (KR); Byoung Hoon Ahn, Daejeon (KR); Chae Gyu Lee, Daejeon (KR); Sang Hoon Choy, Daejeon (KR); and Shin Wook Jeon, Daejeon (KR)
Assigned to LG Energy Solution, Ltd.
Filed by LG Energy Solution, Ltd., Seoul (KR)
Filed on Oct. 15, 2021, as Appl. No. 17/502,814.
Claims priority of application No. 10-2020-0142767 (KR), filed on Oct. 30, 2020.
Prior Publication US 2022/0134379 A1, May 5, 2022
Int. Cl. B05C 5/02 (2006.01); B05D 1/26 (2006.01); H01M 4/04 (2006.01)
CPC B05C 5/0254 (2013.01) [B05D 1/26 (2013.01); H01M 4/0402 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A die for coating an insulating liquid, the die comprising:
a die body configured to be positioned on a current collector to discharge an insulating liquid; and
a discharge portion formed at one surface of the die body, the discharge portion configured to receive a discharge of the insulating liquid therethrough, the discharge portion forming a discharge path and a discharge port where the insulating liquid is discharged,
wherein the discharge portion includes a first discharge portion positioned at a front side of a coating direction of the insulating liquid, and a second discharge portion positioned at a rear side of the coating direction of the insulating liquid, the discharge path is formed between the first discharge portion and the second discharge portion, and the discharge port is formed between an end of the first discharge portion and an end of the second discharge portion, and
wherein the die body is configured to be tilted at a predetermined angle toward the front side of the coating direction of the insulating liquid, so that the discharge portion of the die body is also tilted at a predetermined angle toward the front side of the coating direction of the insulating liquid,
wherein a cross-section of the second discharge portion forms an inclined surface which is tilted downwards from an end of the discharge port.