Ultrasonic Metal Welding Technology of Cascaded Battery Connection

Nowadays, cascaded battery is the power source of new-energy vehicles. The paper studies the effects of technological parameters, such as input energy, welding duration, position of tabs, welding material and number of welding layers on the morphology of combined interface and microstructure. A relatively better welding effect will be obtained when the input energy of the welding machine is 108J, the welding duration is 1.2s, and the pressure of the welding chuck is 0.2Mpa.