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Experimental Strain Measurement In Ultrasonic Welding Of Battery Tabs, Chen Chen
Experimental Strain Measurement In Ultrasonic Welding Of Battery Tabs, Chen Chen
Wayne State University Theses
Lithium-ion battery is one the most popular types of batteries currently used in electric
vehicles. To meet the power requirement, hundreds of Lithium ion battery cells are connected together before being assembled into a battery pack. Ultrasonic welding is the most widely used joining technology to connect battery cells together. In an ultrasonic welding process, high frequency oscillation is used to generate small relative motions between sheet metals to be welded, and produce solid-state bonds between the sheet metals clamped under pressure. One of the major issues for battery pack ultrasonic welding is that sometimes the welding process damages the …