The waste battery undergoes pretreatment, acid leaching, extraction, purification, precursor synthesis, battery material synthesis, and other processes to obtain battery cathode materials. This method can effectively recover lithium. Users employing this data for life cycle assessment should ensure that the functional unit of 12.717g used lithium battery is consistently applied across all comparisons. It is essential to consider the system boundaries of this process, including the pre-treatment and post-treatment stages. When evaluating technological applicability, the efficiency and recovery rate of lithium during acid leaching, extraction, and purification must be accounted for, as well as any potential environmental impacts from emissions or waste generated.