great potential for emergency power and off-grid applications
Given it is a single use battery that is thrown away for the aluminum to be recycled, I don't feel it's particularly interesting. It also needs the electrolyte to be stored separately and filled into the battery right before use. Because otherwise the battery will self discharge in a month.
It could make sense for a car where its light weight and power density is a significant advantage. Consumers already pump gas so swapping the battery every week at a station would be quicker than recharging an EV. The only issue would be a car sitting in a garage would be dead after a month- and you couldn't recharge at home.