SECONDARY BATTERY, AND ULTRASONIC WELDING DEVICE AND WELDING METHOD FOR SECONDARY BATTERY

• Main Authors: KU, Cha Hun, LEE, Jin Yong, JUNG, Hun Bum, KIM, Jeong Yeon, HWANG, Ji Hun, CHOI, Jae Hwa, BAE, Sang Ho, JUNG, Su Taek, HAN, Chang Min, BAEK, Young Seok, KIM, Jung Joo
• Format: Patent
• Language: English; French; German
• Published: 17.01.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ELECTRICITY; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The present invention comprises: an anvil provided so that an overlapping surface of an electrode tab and an electrode lead, which are provided in an electrode assembly, are 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 facing the overlapping surface and a disposing part of the anvil, on which the overlapping surface is disposed, with respect to the predetermined reference surface.