cockney steve said:
WOUND CONSTRUCTION WILL NOT STOP THAT THERMAL MOVEMENT
Equally important as, or perhaps more important than, the thermal expansion is the roughly 10% change in volume of the combined electrodes, active material and separator between fully discharged and fully charged state. This is a characteristic of the LiCo electrode chemistry.
Repeated wide range State of Charge cycling may potentially be more damaging to the electrode structure than thermal cycling, especially if there are other contributing factors such as debris from manufacturing or dendrite growth.