The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2025
Filed:
Jun. 25, 2021
Lg Energy Solution, Ltd., Seoul, KR;
Sang Ho Bae, Daejeon, KR;
Hun Bum Jung, Daejeon, KR;
Jin Yong Lee, Daejeon, KR;
Ji Hun Hwang, Daejeon, KR;
Cha Hun Ku, Daejeon, KR;
Su Taek Jung, Daejeon, KR;
Chang Min Han, Daejeon, KR;
Jae Hwa Choi, Daejeon, KR;
Young Seok Baek, Daejeon, KR;
Jeong Yeon Kim, Daejeon, KR;
Jung Joo Kim, Daejeon, KR;
LG Energy Solution, Ltd., Seoul, KR;
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.