US 11,691,173 B2
Slot die coater adjusting device for controlling distance between upper discharge port and lower discharge port of slot die coater, and electrode active material coating system including same
Do-Hyun Lee, Daejeon (KR); Cheol-Woo Kim, Daejeon (KR); and Sang-Hoon Choy, Daejeon (KR)
Assigned to LG Energy Solution, Ltd.
Appl. No. 17/276,996
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Sep. 30, 2019, PCT No. PCT/KR2019/012763
§ 371(c)(1), (2) Date Mar. 17, 2021,
PCT Pub. No. WO2020/071713, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 10-2018-0117142 (KR), filed on Oct. 1, 2018.
Prior Publication US 2022/0016665 A1, Jan. 20, 2022
Int. Cl. B05C 5/02 (2006.01); B05C 9/06 (2006.01); B05C 11/02 (2006.01); B05C 11/10 (2006.01); H01M 4/04 (2006.01)
CPC B05C 5/0262 (2013.01) [B05C 9/06 (2013.01); B05C 11/02 (2013.01); B05C 11/1002 (2013.01); H01M 4/0404 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A slot die coater adjusting device, comprising:
pressing block assemblies respectively provided to both longitudinal sides of a slot die coater and fixed to an upper die of the slot die coater;
a linear motion (LM) guide disposed at a lower portion of the pressing block assembly and connected to the pressing block assembly to guide a movement of the pressing block assembly;
a servo motor configured to give a power for moving the LM guide; and
a reducer connected between the servo motor and the LM guide,
wherein the slot die coater adjusting device is configured to adjust the slot die coater including a lower die having a lower discharge hole for discharging a first active material slurry and the upper die having an upper discharge hole for discharging a second active material slurry, to adjust a distance between the lower discharge hole and the upper discharge hole by allowing the upper die to move,
wherein the LM guide includes:
a guide frame;
a ball screw installed inside the guide frame and connected to the reducer to receive the power therefrom; and
a movable block fastened with the ball screw to linearly move in a front and rear direction of the slot die coater according to a rotation of the ball screw.