Battery management system with integrated impedance spectroscopy
Central Innovation Programme for SMEs (Zentrales Innovationsprogramm Mittelstand, ZIM)
Within the scope of a ZIM project, Air Energy has integrated and tested measurement hardware for electrochemical impedance spectroscopy (EIS) in a high-voltage battery management system. The EIS allows a detailed analysis of the impedance behavior of the battery cells. Battery parameters, such as the aging state, can be determined from the impedance values. For applications with high availability and reliability needs, this system offers the possibility to detecting cell degradation at an early stage. Thus, maintenance work or, if necessary, replacement of the battery can be planned in time.