In the process of cascade utilization, retired power battery packs are first split into individual modules and cells, and then through preliminary sorting and performance testing, the cells with better performance consistency are sorted out and reassembled into new battery . . In the process of cascade utilization, retired power battery packs are first split into individual modules and cells, and then through preliminary sorting and performance testing, the cells with better performance consistency are sorted out and reassembled into new battery . . This paper reviews the key issues in the cascade utilization process of retired lithium batteries at the present stage. It focuses on the development status and existing challenges of residual capacity estimation methods and consistency sorting technology. Based on the review, this paper also looks. . Li Chunsheng et al. J Electr Technol 33(9):2 arios with low battery quality requirements, such. St te Parame m batteries have. . The cascade utilization of retired lithium batteries to build an energy storage system is an effective means to achieve my country"s dual-carbon goal, but safety issues restrict large. Distributed Energy 2021, Vol.
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