Back in the 70s I went to a lecture think it was by Shell, about the idea of powering a car with North Sea gas, it was abandoned because of the problems if the car was involved in an accident, and how it could release gas as the tank warmed up, and cause a fire, it seems we don't worry about that now, it is exactly the same with damaged batteries to damaged refrigerated tanks, near impossible to stop fires, diesel is far safer, but it seems the world is overpopulated so a few lives loss due to fire no longer matters.