SMART-LIC


 

SMART-LIC is a European project supported within the Seventh Framework Programme for Research and Technological Development with contract No: 284879

 
 

Concept


In the current solutions, the BMS is intended to be the ensemble that incorporates mechanical and electrical interconnections as well as electronic and thermal controls both at a module and pack level. Usually voltage and temperature measurements are performed at module level within the local unit electronic board which usually performs some management of the module. The central management, implemented at battery pack level , is constituted by a board performing most of the tasks. The malfunctioning of one of the serially connected Local Units influences the performance of the overall pack. Therefore, distributing both measurements and the management at the cell or macrocell level, that is by adopting a higher partition of the BMS introducing smartness at a cell or macrocell level, it is possible to isolate (switch-off) malfunctioning cells before they could limit the great majority of the other cells of the pack.

Advantages

1.       Measuring of cell and safety relevant parameters inside the cell with the benefit of improved accuracy, interference resistance and response time: Cell voltage, Current, Temperature, Pressure, Electrochemical impedance spectra (EIS)

2.       Incorporating of passive and active security devices (e.g. fuses and switches) for disconnecting/deactivating of the cell (macrocell) in case of accident/failure

3.       Omission of any joining techniques related to the above mentioned actuating and sensing devices

4.       Increased falsification safety due to electronic cell identification and authentication

5.       Weight minimization and space reduction in comparison to state-of-the-art solutions

6.       Increased reliability and interference resistance due to high level integration

For further information please contact jochen.langheim@st.com