Battery module
Provided is a battery module including a plurality of cylindrical solid batteries, each cylindrical solid battery having a shaft member, and a wound electrode group in which an electrode laminate of a positive electrode and a negative electrode laminated via an electrolyte is wound around the shaft member, the shaft member being provided with an NTC thermistor or a CTR thermistor in an axial direction between a first conductive member and a second conductive member, and having a through hole in its center, each cylindrical solid battery further having a temperature controller that is disposed in the through hole and controls the temperature of the NTC thermistor or CTR thermistor.
1 . A battery module comprising a plurality of cylindrical solid batteries,
each cylindrical solid battery having a shaft member, and a wound electrode group in which an electrode laminate of a positive electrode and a negative electrode laminated via an electrolyte is wound around the shaft member,
the shaft member being provided with an NTC thermistor or a CTR thermistor in an axial direction between a first conductive member and a second conductive member, and having a through hole in its center,
the first conductive member being provided with a male thread at one end of the shaft member in the axial direction,
the second conductive member being provided with a female thread at the other end of the shaft member in the axial direction,
adjacent cylindrical solid batteries being fastened through the male thread and the female thread,
the NTC thermistor or the CTR thermistor being fastened with the first conductive member and the second conductive member, and
each cylindrical solid battery further having a temperature controller that is disposed in the through hole and controls the temperature of the NTC thermistor or CTR thermistor.
2 . The battery module according to claim 1 , wherein each cylindrical solid battery further has, in the through hole, a detector that detects the state of the cylindrical solid battery.
3 . The battery module according to claim 1 , wherein in the electrode laminate, the positive electrode and the negative electrode are laminated via a solid electrolyte layer.