Future Availability of Secondary Raw Materials (FutuRaM), a Horizon Europe project that researches the future availability and recoverability of secondary raw materials, will design a materials knowledge base with a focus on critical raw materials in six waste streams: electrical and electronic equipment, batteries, vehicles, construction and demolition waste, slags and ashes, and mining waste. The focus of the battery waste stream are five product categories, in line with the new Battery Regulation (EU 2023/1542), namely portable batteries, industrial batteries, electric vehicle batteries, starting, lighting and ignition batteries as well as batteries from light means of transport. The aim is to develop a stock and flow model of the total amounts and critical raw materials including those put-on market, stock, waste generated, collected as well as recycled batteries on the European market for each country. To gather information at the element level of the battery flows, a consolidated composition dataset of all battery types and cathode chemistries is assessed. Future battery flows up to 2050 are quantified within three scenarios. These scenarios include a business-as-usual scenario where the management of end-of-life batteries remains largely unchanged, a recovery scenario where end-of-life batteries become a crucial source of secondary raw materials as well as a circularity scenario where battery waste treatment undergoes a massive transformation with focus on circular business models. A recovery model is developed to investigate secondary raw materials produced by spent battery recycling for different cathode chemistries.