Anaerobic Aluminum-Water Fuel Cell

An anaerobic aluminum-water electrochemical cell includes electrode stacks, each electrode stack having an aluminum or aluminum alloy anode, and at least one solid cathode configured to be electrically coupled to the anode. The cell further includes a liquid electrolyte between the anode and the at least one cathode, one or more physical separators between each electrode stack adjacent to the cathode, a housing configured to hold the electrode stacks, the electrolyte, and the physical separators, and a water injection port, in the housing, configured to introduce water into the housing.