Simulation method, device and system for thermal runaway of single cell in battery module

The invention provides a simulation method, device and system for thermal runaway of a single cell in a battery module, and the method comprises the steps: obtaining a plurality of pieces of mixed pulse power performance test process data of the single cell in the battery module at different temperatures and different SOCs, and carrying out the simulation of thermal runaway of the single cell according to all the mixed pulse power performance test process data; according to the method, an equivalent circuit model of a single cell is constructed, so that the purpose of constructing an equivalent model is achieved, finally, an equivalent circuit of a battery module is constructed based on the equivalent circuit model of the single cell, the equivalent circuit of the battery module is adopted for thermal runaway simulation of the single cell, and the purpose of thermal runaway simulation of the single cell is achieved. Therefore, the problem that an existing scheme lacks a simulation method for thermal runaway o