Abstract
This conference paper explores hybrid battery energy storage systems (HBESS) through a simulation-based analysis, combining a commercial nickel manganese cobalt oxide cell with a next-generation cell and evaluating their performance under a realistic application scenario. The study employs physics-based models (PBMs) to simulate and estimate system performance. The paper begins with an overview of actual lithium-ion battery technologies, providing context on the research landscape, with a focus on cobalt-free and graphite-silicon electrodes. It then outlines the PBM used, followed by the parameterization of the cells forming the HBESS. A detailed description is provided of the steps undertaken to calibrate the next-generation cell model, which has been validated using experimental full-cell data. The article further discusses key aspects of the hybrid system, including the application of model predictive control strategies and critical operational considerations. A case scenario, based on an electric vehicle usage pattern, is then evaluated through simulation to assess the potential benefits in terms of performance optimization and degradation mitigation. In this way, the study demonstrates how hybridization strategies can leverage the strengths of different battery technologies when integrated with actual battery applications, reducing degradation and cobalt content in battery packs.