US 12,241,843 B2
Electrode sheet defect detection system
Ee Beom Choi, Daejeon (KR); Min Su Kim, Daejeon (KR); Dong Hyeok Shin, Daejeon (KR); and Jae Yong Kim, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/914,608
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Dec. 24, 2021, PCT No. PCT/KR2021/019874
§ 371(c)(1), (2) Date Sep. 26, 2022,
PCT Pub. No. WO2022/145905, PCT Pub. Date Jul. 7, 2022.
Claims priority of application No. 10-2020-0184324 (KR), filed on Dec. 28, 2020.
Prior Publication US 2023/0349834 A1, Nov. 2, 2023
Int. Cl. G01N 21/88 (2006.01); H01M 10/42 (2006.01)
CPC G01N 21/8803 (2013.01) [G01N 21/8851 (2013.01); H01M 10/4285 (2013.01); G01N 2021/888 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An electrode sheet inspection system comprising:
an inspection unit configured to inspect an external state of an electrode sheet; and
an ink marking unit configured to mark a portion to be removed on the electrode sheet, the ink marking unit comprising a tab guide configured to prevent damage to an electrode tab when the electrode sheet is moved,
wherein the ink marking unit is configured to adjust an ink marking range.