... 25 layers and tab .. Ultrasonic Battery Welding Machine ultrasonic metal welder is designed for welding both stacked electrode sheet (Copper & ... .4, the welding time is short, without any flux, gas, solder.5, no welding sparks, environmental protection and safety. ... the metal tube end sealing, cutting can be water, gas-tight.the sample effectionULTRASONIC THEORY Ultrasonic metal welding machine uses ...