EIS Platform for Real-Time Monitoring and Diagnostics of High-Voltage Battery Systems

Current Electrochemical Impedance Spectroscopy (EIS) solu­tions are typi­cally limited to labo­ra­tory envi­ron­ments or single cell measure­ments. This project aims to over­come these limi­ta­tions by devel­oping a custom system capable of performing imped­ance measure­ments at battery pack level under oper­ating condi­tions for moni­toring degra­da­tion and remaining useful life­time predic­tion.

The work can leverage SAL’s Validation Lab capabilities for experimental validation under realistic and controlled operating conditions. The lab provides advanced testing facilities, including environmental, mechanical, accelerated aging, and lifetime testing, enabling the evaluation of battery systems and impedance-based monitoring approaches in conditions representative of real-world operation.

Expected Results 

• Proto­type of an EIS plat­form for battery packs with inte­gra­tion into battery manage­ment systems (BMS)

• Demon­stra­tion of imped­ance measure­ments during real oper­a­tion.

• New methods for battery health esti­ma­tion and fault detec­tion based on EIS.

We are looking for part­ners from

• Industry (battery manu­fac­turers, repair industry, auto­mo­tive, energy storage).

• BMS and system inte­gra­tion.

• Elec­tronics and hard­ware devel­op­ment.

Recent Work and Publications

• ARCHIMEDES | CHANGE TECHNOLOGIES FOR GREEN EU

• Quantum Sensors: Towards Precise SoC and SoH Estimation in Battery Systems | Cynergy4MIE

• Eis-Based Method for Ageing Detection in Li-Ion Battery Packs | IEEE Conference Publication | IEEE Xplore

• Impedance reduction in lithium-ion batteries via non-contact ultrasonic excitation using electromagnetic acoustic transducers - ScienceDirect