What data are the so-called #LifeCycleAssessments (LCA for short) based on, how up-to-date are they and do they really reflect the current status quo for the ecological footprint of lithium-ion batteries? The HiQ-LCA project team has asked itself these questions and wants to fill the gaps with an advanced semantic database s and new validated data sets. Twelve well-known companies and research institutions will build a battery LCA database s and related battery-specific services for companies who are operating along the value chain and who want to reliably determine the carbon footprint of their processes and products due to the new Battery Regulation of the EU.