The manufacturing of lithium-ion batteries (LIBs) is inherently complex and interdisciplinary, particularly given the relatively young technological landscape in the European Union.1 The integration of recycled active materials into existing production infrastructures amplifies this complexity. Recycling processes frequently introduce impurities and structural alterations to battery materials, potentially compromising performance, longevity, and safety. Consequently, utilization of recycled battery materials necessitates the establishment of quality criteria. Furthermore, adaptations in electrode formulation and manufacturing processes are potentially required to maintain optimal battery performance and reliability. The extraction of quality criteria from current scientific literature for re-introduction of recycled materials into LIB production presents significant challenges.