Patent ID: 7896219
Filing Date: 2011-03-01
Classification: B23K,H01M,Y02E,Y10S

Abstract:
1. A method for welding of battery terminals to an interconnect comprising; juxtaposing two or more battery cell terminals to each other to create a terminal stack including an innermost terminal and an outermost terminal; juxtaposing a battery cell interconnect with the innermost terminal of the stack; positioning an anvil in contact with the interconnect; directing an air stream against the outermost terminal after the anvil is positioned in contact with the interconnect so that the air stream compresses the terminal stack and urges the innermost terminal into contact with the interconnect; positioning a sonotrode horn in contact with the outermost terminal after the air stream has compressed the terminal stack and urges the innermost terminal into contact with the interconnect; and energizing the sonotrode horn to vibrate the terminal stack and thereby make an ultrasonic weld between the stacked terminals of the terminal stack and the interconnect.