SENSOR: embedded fiber-optic sensing systems for advanced battery management

Under the ARPA-E AMPED program for advanced battery management systems, PARC and LG Chem Power are developing SENSOR (Smart Embedded Network of Sensors with an Optical Readout), an optically based smart monitoring system prototype targeting batteries for electric vehicles (EVs). The system will use fiber optic sensors embedded inside Lithium-ion battery cells to measure parameters indicative of cell state in conjunction with PARC's low-cost, compact wavelength-shift detection technology and intelligent algorithms to enable effective real-time performance management and optimized battery design. This talk will give an overview of the project, the underlying enabling technologies, and then cover some promising initial experimental results from the project, including internal cell signal data and state estimation using fiber optic sensors embedded in Li-ion pouch cells over charge-discharge cycles.