公开(公告)号：US20230182239A1

公开(公告)日：2023-06-15

申请号：US17921287

申请日：2021-06-25

Applicant: LG Energy Solution, Ltd.

Inventor： Sang Ho Bae ,  Hun Bum Jung ,  Jin Yong Lee ,  Ji Hun Hwang ,  Cha Hun Ku ,  Su Taek Jung ,  Chang Min Han ,  Jae Hwa Choi ,  Young Seok Baek ,  Jeong Yeon Kim ,  Jung Joo Kim

IPC: B23K37/04 ,  H01M50/528 ,  B23K20/10

CPC classification number: B23K37/0452 ,  H01M50/528 ,  B23K20/106 ,  B23K2101/38

Abstract: An ultrasonic welding device includes an anvil provided so that an overlapping surface of an electrode tab and an electrode lead, which are provided in an electrode assembly, are configured to be disposed thereon; a horn configured to weld the overlapping surface disposed on the anvil; and an inspection member configured to inspect a horizontal level of an opposing member with respect to the overlapping surface, based on an overlapping surface horizontal value that is a horizontal value of the overlapping surface with respect to a predetermined reference surface and an opposing horizontal value that is a horizontal value of the opposing member, which is one of a welding part of the horn configured to face the overlapping surface and a disposing part of the anvil, on which the overlapping surface is configured to be disposed, with respect to the predetermined reference surface.

公开(公告)号：US20230201953A1

公开(公告)日：2023-06-29

申请号：US17921270

申请日：2021-06-25

Applicant: LG Energy Solution, Ltd.

Inventor： Sang Ho Bae ,  Hun Bum Jung ,  Jin Yong Lee ,  Ji Hun Hwang ,  Cha Hun Ku ,  Su Taek Jung ,  Chang Min Han ,  Jae Hwa Choi ,  Young Seok Baek ,  Jeong Yeon Kim ,  Jung Joo Kim

IPC: B23K20/10 ,  B23K20/00

CPC classification number: B23K20/10 ,  B23K20/002 ,  B23K2101/36

Abstract: An ultrasonic welding device for a secondary battery is provided. The ultrasonic welding device is configured to weld an overlapping surface of an electrode tab and an electrode lead in an electrode assembly. The ultrasonic welding device includes an anvil on which the overlapping surface of the electrode tab and the electrode lead are disposed. A horn is configured to apply ultrasonic waves to the overlapping surface of the electrode tab and the electrode lead while pressing the overlapping surface. The overlapping surface is disposed on the anvil. An electrode tab measuring part is configured to measure a thickness of the electrode tab disposed on the overlapping surface. A pressure adjusting device is configured to adjust a pressure applied to the overlapping surface by the anvil and the horn according to the thickness value of the electrode tab. The thickness value is measured by the electrode tab measuring part.