This paper has through empirics and dialogue with industry experts and practitioners collected industrial circular battery production challenges that call for research and development. By workshop visits to vehicle companies and focus group discussions with professionals and researchers in Swedish manufacturing research and development clusters, both general challenges and specific circularity challenges for battery production with focus on cell to module and cell to pack were discussed and analysed. Further research paths for the future were concluded. A joint view of circularity development of the product design and the production system design may be beneficial. Researchers who seek industrial impact may combine detailed development with systemic research together with practitioners