BATTERY2LIFE is a project, funded by Horizon Europe programme (co-funded by Swiss Federation) that will facilitate the smooth transition of batteries to 2nd life use and will boost the innovation of the European Battery Industry by providing enablers to implement open adaptable smart Battery Management Systems (BMS), improved system designs and proposing methods for the efficient and reliable reconfiguration of used batteries.

Battery2Life introduces two new battery system design frameworks serving the upcoming market needs: the first supports the business transition for the initial market by restructuring existing battery design patterns while the second one introduces completely new design principles for 1st and 2nd life of future batteries. A completely new BMS design mentality is introduced to the battery industry by delivering an open and interoperable hybrid BMS architecture (with an Embedded and a Cloud section) leading the transition from technology-driven BMS designs, to serve the needs of specific applications and battery technologies, to new data-driven and application-agnostic BMS designs, that can be easily adapted and updated to serve the requirements of different battery technologies and any 2nd life battery stationary storage application.

Furthermore, Battery2Life introduces innovative embedded sensing and more accurate SOX (State of Battery) estimation algorithms, which are also required for 2nd life use (i.e. SOS (State of Safety) and SOW (State of Warranty)). A new Electrochemical Impedance Spectroscopy (EIS) implementation approach is integrated into the BMS, that will enable the detailed safety and reliability monitoring at both cell and module level during 1st and 2nd life stage usage. The project specifies an open BMS concept, data formats, considerations, extends the battery passport concept, and implements interoperable communication via the cloud platform to third parties including the future passport exchange system, to facilitate monitoring and assessment.

Two demonstrations that represent two promising and sustainable business cases, serving the two most common stationary applications have been carefully selected: i) the domestic and ii) industrial (grid-scale) storage, with respect to their operational specificities and requirements.