use of zinc for new batteries

have read with interest that the new wave of battery powered vehicles will have a zinc /air combination internal construction needing some pounds of said material for each vehicle,this new battery will have a profound effect on high quality zince use and has it occured to anyone that with the large increase about to take place in iron ore usage that the protecting and alloying ingrediants are also going to have an enormous boost in consumption??Forget the waves and watch where the tide is going.2nd gear is about to engage.