Cascade utilization and dismantling recycling are important ways to recycle decommissioned lithium-ion batteries. (1) Cascade utilization can realize the secondary application of decommissioned power lithium-ion batteries in the field of energy storage. Car companies and battery factories have inherent advantages, but they also face the dilemma of high recycling costs for retired batteries. At the same time, this approach has extremely high requirements on battery consistency, and some demonstration projects are