2.2.5. Types and Sources of Data

For modelling, various LCA data sources such as primary and secondary data were used. For the energy demand and the amount of auxiliary and operating materials required, primary data were available from the pilot plant in operation at the industrial partner's site. Generic data sets from the GaBi balancing software were used for modelling the auxiliary and operating materials as well as the energy supply. For material quantities, for which no primary data were available, reasonable assumptions were made.

To represent the material flows of the individual battery components, data on the battery composition were required; the material composition of the battery was taken from the LithoRec II study [30], a generic battery composition, which was developed by a consortium of various battery manufacturers and other experts within the framework of that project. This battery composition represented the average battery composition commonly used at that time and is shown in Table 1. As this battery composition was also used in other projects, the comparability of the different recycling approaches was simplified [30].


**Table 1.** Generic battery composition created by expert panels within the LithoRec II study. The battery composition is intended to represent an average traction battery at this time. The battery contains LiNixMnyCozO2 (NMC) cells and LiPF6 as the electrolyte [30].
