I'm using that term because you keep shifting your argument each time I address the original point you were making.
Hydrogen is a flammable gas. However, hydrogen stored in a battery with a catalyst is not in a state where it is flammable.
Meanwhile, using corrosive acid is certainly not a new thing last I checked. Are you perhaps arguing against the concept of batteries here?
Meanwhile, use of drones in warfare has nothing to do with a new battery being developed.
