CeLiM: Centralized Runtime Monitoring of Lithium-Ion Battery Packs

The increasing proliferation of electrochemical energy storage systems, for example in selfsustaining buildings and emission-free vehicles, is an important step towards a more sustainable economy, but also creates new challenges to ensure safe and efficient operation of these systems. In this paper, we present CeLiM, a tool for server-based monitoring and control of lithiumion battery packs in stationary and mobile applications. CeLiM allows to log large volumes of data from local battery management systems (BMS), and includes mechanisms for automated on-line monitoring of batteries, using runtime verification techniques from software engineering. We demonstrate how CeLiM’s monitoring capability can be coupled with existing model-based diagnosis frameworks, in order to automatically interpret violated safety rules and identify likely root causes of failures. We present preliminary results using real data from a stationary energy storage system in a sustainable residential home application.