Mixed power battery module and battery pack

The embodiment of the utility model provides a mixed power battery module and a battery pack, and relates to the technical field of batteries. The mixed power battery module and the battery pack comprise a plurality of first-type battery cells, a plurality of second-type battery cells and a plurality of heat insulation pads, the plurality of first-type battery cells and the plurality of second-type battery cells are sequentially arranged in a staggered mode, and the heat insulation pads are arranged between the adjacent first-type battery cells and second-type battery cells. And thermal diffusion caused by thermal runaway of the battery cell under an extreme working condition can be delayed or prevented. 本实用新型的实施例提供了一种混装动力电池模组及电池包，涉及电池技术领域。该混装动力电池模组及电池包包括多个第一类电芯、多个第二类电芯以及多个隔热垫，多个第一类电芯与多个第二类电芯依次交错排布，相邻第一类电芯与第二类电芯之间设置隔热垫，能够延缓或阻止电芯在极端工况下发生热失控后造成的热扩散。