Electricity storage module

An electricity storage module comprising:

• a plurality of electricity storage cells;
• and
• a plurality of electricity storage cell holders, the plurality of electricity storage cells and the plurality of electricity storage cell holders being stacked alternately in a stacking direction, each of the plurality of electricity storage cell holders including a thermistor holding portion, at least one of the thermistor holding portions of the plurality of electricity storage cell holders being provided to support a thermistor, the thermistor having a temperature measuring portion and a spring member, the thermistor holding portion comprising:
• a spring member contact portion configured to contact the spring member and configured to be pressed by the spring member in a direction away from one of the electricity storage cells, the temperature measuring portion configured to press against one of the electricity storage cells by a spring force of the spring member when the spring member is in contact with the spring member contact portion;
• a shaft portion connected to the spring member contact portion and extending in the stacking direction;
• a first engaging portion provided on one end side of the shaft portion in the stacking direction;
• and a second engaging portion provided on another end side of the shaft portion in the stacking direction, wherein the first engaging portion of one of the electricity storage cell holders engages with the second engaging portion of another of the electricity storage cell holders to prevent the spring member contact portion from being deformed away from one of the electricity storage cells,
• wherein the first engaging portion and the second engaging portion are disposed on electricity storage cell holders that are adjacent to each other in the stacking direction,
• wherein the first engaging portion and the second engaging portion engage with each other with a concavity and a convexity, and wherein the first engaging portion is pin-shaped, and the second engaging portion is pinhole-shaped.