Hydrogen vs. Battery Electric Cars

Why not use aluminium fuel cell vehicles ...the  infrastructure cost required is also less bcoz we need only aluminium plates and water and refueling time is also less than hydrogen without any risk of fire ..and the good part is aluminium is recyclable .....but right now cost is the only issue with it but it can be reduced by scaling it up....an Indian company log 9 materials is working on aluminium fuel cell and created a prototype which can power a vehicle ....I hope log 9 materials achieve this and it will be the true replacement of petrol vehicles https://youtu.be/ByejM9jLTZs