Spatially resolved acoustic, mechanical and ultrasonic sensing for smart batteries

ended

The global objective of the Spartacus project is to develop an affordable sensor solution to detect degradation and failure mechanisms, intentionally before a loss of performance. The project will focus on mechanical and acoustic sensors completed by electrochemical impedance measurement and temperature sensors. The sensoric data will be correlated to battery performance and to corresponding models. The state of different parameters (SoX) will be monitored continuously which enables the management system to cycle the battery on an age-dependent optimum level. An advanced Battery Management System (BMS) will be developed. BMS will work in proximity to the cells terminals (i.e. a cell management system, CMS) to efficiently exploit all the sensoric data without extra-wiring harness. At the end of the project, an 24V smart battery module will be assembled and the CMS enhanced by the senoric data will be validated in different ageing conditions or for misused or abused batteries at lab-scale (TRL4). Quantitatively, a reduction of 20% charging time without any negative effect on life time by exploitation of sensoric data is targeted. By usage of sensoric data, cell monitoring will be also improved and will increase the safety of batteries and avoid overheating (thermal runaway), fire or explosion. Spartacus project is based on 6 specific objectives: - OBJ1: Development of new sensors design for smart batteries - OBJ2: Integration of the sensors according to industrial constraints incl. Packaging / Assembly technology - OBJ3: Data acquisition and data pre-processing for BMS integration - OBJ4: Modelling of failure mechanisms and correlation with SoX - OBJ5: Development of an advanced BMS and standardization procedures - OBJ6: Economic and environmental assessment Spartacus consortium is a strong partnership of 5 European research centres and 1 leading industrial having extensive track-records in materials, battery, sensors, modelling, BMS and associated domains.