This project is the continuation of the Battery Pilot Hub (MA4929), a pioneer initiative at ESRF designed to achieve large-scale synchrotron-based correlative characterization of battery materials (2021-24). The European Battery Hub is the demonstrator of this new community-driven approach, where we will develop, expand and deploy integrated workflows to resolve scientific challenges towards more sustainable battery technologies. We will focus on Na-ion Batteries and All Solid State Batteries, while ensuring transferability of methods to other systems. The Hub will provide a holistic understanding of reaction and degradation mechanisms by pushing the frontiers of time and space resolution thanks to the exceptional coherence and brilliance of the X-rays at ESRF. Six core beamlines are identified to realize the program (ID31, ID13, BM32, ID16b, ID20, ID26), where novel set-ups, sample environments, interoperable cells, common data handling protocols and pipelines will be developed.