The complexity of the most useful in-house recycling line is determined by various factors like the individual company prerequisites and the scope they want to act in. On the one hand, company prerequisites include, for example, the scrap rate, return options for own or known batteries, existing relationships with recyclers and political conditions such as subsidies or recycling quotas in the respective country. On the other hand, the motivation to operate a recycling line in the first place or even take on a more advanced recycling line is determined by factors such as establishment and preservation of intellectual property within the company or ecological goals. It is also unknown which requirements companies will face in the future. To have working structures established at an earlier stage might save time and could be a competitive advantage.