4 Transient Temperature and Heat Flux Measurement Using Thin-Film Microsensors
Download citation file:
Process physics understanding, real time monitoring, and control of various manufacturing processes, such as battery manufacturing, are crucial for product quality assurance. While ultrasonic welding has been used for joining batteries in electric vehicles (EVs), the welding physics, and process attributes, such as the heat generation and heat flow during the joining process, is still not well understood, leading to time-consuming trial-and-error based process optimization. This study is to investigate thermal phenomena (i.e., transient temperature and heat flux) and to realize production level in-situ temperature measurement by using micro thin-film thermocouples (TFTC) and thin-film thermopile (TFTP) arrays (referred to as...