US 12,459,770 B2
Auto splicing device and auto splicing method for electrode
Sangsu Ha, Daejeon (KR); and Ki Woog Kim, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 18/273,366
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Nov. 10, 2022, PCT No. PCT/KR2022/017640
§ 371(c)(1), (2) Date Jul. 20, 2023,
PCT Pub. No. WO2023/106656, PCT Pub. Date Jun. 15, 2023.
Claims priority of application No. 10-2021-0174586 (KR), filed on Dec. 8, 2021.
Prior Publication US 2024/0308803 A1, Sep. 19, 2024
Int. Cl. B65H 19/18 (2006.01); B65H 23/02 (2006.01); B65H 26/02 (2006.01); H01M 10/04 (2006.01)
CPC B65H 19/1852 (2013.01) [B65H 23/0204 (2013.01); B65H 26/02 (2013.01); H01M 10/0404 (2013.01); B65H 2553/80 (2013.01); B65H 2701/12411 (2013.01); B65H 2701/19 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An auto-splicing device for an electrode, comprising:
an electrode supply unit;
a first electrode conveying unit comprising a first unwinding unit which is configured to unwind a first electrode; a first conveying unit which is configured to convey the unwound first electrode; and a first splicing unit which is configured to connect a second electrode to the first electrode when unwinding of the conveyed first electrode is completed; and
a second electrode conveying unit comprising a second unwinding unit which is configured to unwind the second electrode; a second conveying unit which is configured to convey the unwound second electrode; and a second splicing unit which is configured to connect the second electrode to the first electrode,
wherein the first splicing unit or the second splicing unit comprises a first Edge Position Control (EPC) sensor and a second EPC sensor facing side surfaces of the first electrode or the second electrode,
the first EPC sensor and the second EPC sensor face the same direction to sense one electrode surface of the first electrode and one electrode surface of the second electrode located on the same plane when the first electrode and the second electrode are connected, and
the first EPC sensor is configured to sense a coating line formed on one electrode surface of the first electrode, and the second EPC sensor is configured to sense a coating line formed on one electrode surface of the second electrode.