Yes, it can easily do this hundreds of times with minimal loss of capacity (e.g. 5%) so long as temperature is well controlled, but depth of discharge is not really 0% (fully discharged) and it's not really 80% (fully charged).

They're made of of many hundreds of cells at different charge points, but likely 10-20% is as discharged as you're likely to get (without leaving the vehicle sitting for weeks on end) and 80% is as charged as you'll get. They have traded power density for lifetime and "charging rate".