Parallel Disassembly Sequence Planning of Retired Lithium-ion-battery Pack based on Heuristic Algorithm

Abstract

With the explosive growth of the electric vehicle market, the recycling work of retired lithium-ion-battery packs, modules and cells is facing great challenges. Dismantling process is the primary step of the electronic waste recycling. In order to achieve rapid, efficient and safe disassembly of battery packs, and improve resource utilization efficiency, reduce environmental pollution, it is necessary to set battery pack disassembly production line. Based on the above targets, four optimization objectives are set, which are idle time, safety factor, disassembly cost and number of workstations. The solving part applies five heuristic algorithms, which can not only expand the solution range, but also discuss the performance of these algorithms. By comparing the value of objective functions, fitness and other indicators, NSGA-II is considered to have better convergence, and the optimal disassembly scheme is given.