Battery health management in the era of big field data

Battery storage systems (BSSs) are emerging as pivotal components for facilitating the global transition toward transportation electrification and grid-scale renewable energy integration. Nevertheless, a significant research gap persists due to the lack of large-scale, publicly available field data from real-world BSS deployments, thereby hindering the advancement of state-of-the-art health monitoring for lithium-ion batteries. In a recent issue of Nature Energy, Figgener et al. have introduced a large-scale dataset containing field measurements from 21 household BSSs in Germany over 8 years, now publicly accessible via Zenodo. This dataset serves as the first of its kind in the battery research field, laying the groundwork for bridging laboratory research and real-world applications.