The waste LFP battery is pyrolyzed, crushed, sieved and magnetically separated to obtain the waste LFP battery cathode material, which is alkaline dissolved; the residues containing iron and lithium are obtained, and then iron, lithium, and phosphorus sources are added, and roasted to obtain the new LFP cathode material. Users of this data set should take into consideration the specific recycling techniques used by Brunp (a subsidiary of CATL) when applying this data to life cycle assessments of power batteries. Methodological aspects such as the inclusion or exclusion of recycling processes, and end-of-life treatment should align with the CML2001 model and the GaBi6 software, version 6.0, which were used in this study. It is recommended to model the use phase behavior considering the functional unit as the vehicle traveling distance of a single power system during its life cycle (250,000 km). Users should ensure that methodological consistency is maintained throughout the LCA study.