U.S. Navy tests microbial fuel cells for their new ocean sensor
Microbial hydrogen fuel cells seem to be very popular lately. The U.S. Navy has recently announced that it will be using these fuel cells as part of its now autonomous ocean sensor. The sensor will be able to surface and dive easily and much of its buoyancy will be derived from the fuel cell itself. This is a new use for fuel cells as they are more often used to generate electricity rather than keep an oceanic device afloat. The Naval Research Laboratory calls their new device the Zero Power Ballast Control. The cylindrical device makes use of a hydrogen fuel cell whose catalyst is swarming…