BATTERY PACK

Since this type of battery pack generates heat at the time of charging/discharging, cooling of the secondary batteries becomes important in order to suppress performance degradation of the secondary batteries. The present invention thus addresses the problem of providing a battery pack capable of efficiently cooling secondary batteries. This battery pack comprises a plurality of separators respectively sandwiched between a plurality of secondary batteries, and comprises, on the top of the separator, a second stopper having approximately the same thickness in a first direction as a spacing between the secondary batteries. Between a first stopper and the second stopper, a cooling passage is formed between the plurality of secondary batteries, and an opening facing the cooling passage is provided in a surface facing a side surface of a case. 这样的组电池在充放电时发热，因此为了抑制二次电池的性能劣化而对二次电池进行冷却非常重要。在此，本发明所要解决的课题是，提供一种能够将二次电池有效地冷却的组电池。具有夹在多个二次电池各自之间的多个分隔件，在分隔件的上部具有在第一方向上具有与二次电池间隔大致相同的厚度的第二限位部，在第一限位部与所述第二限位部之间，在多个二次电池之间形成冷却通路，在