Temperature and Heat Flux Measurements in Ultrasonic Welding using Thin Film Micro Sensors

Abstract

This project is to develop instrumentation and measurement of temperature and heat flux with unprecedented high spatial and temporal resolution by placing micro thermocouple and heat flux sensor arrays at the very vicinity of the weld spot in battery tab joining. The sensor arrays will be direct fabricated on the surface of the battery interconnect bus bar materials, particularly at the interconnect surface. It will also develop instrumentation by embedding the micro thermocouple and heat flux sensor arrays at the anvil for characterization of weld quality.