Their web site proclaims, “HyPoint, Inc. is developing the next generation hydrogen fuel cell system with zero CO2 emissions and game-changing energy performance for the air transportation and urban air mobility market.” Pointing out a “fundamental barrier at a chemistry level” for lithium-ion batteries, the fuel cell maker launches some seemingly outrageous claims. HyPoint states, “Our patented technology increases operational time and utilization rate while decreasing TCO (total cost of operation) of any flying platform.” They claim “5X operational time, 10X utilization rate, 20X faster charge,” and a TCO 90 percent of equivalent battery-powered systems. As we have reported here, demonstrated outputs for lithium-ion cells are around 350 Watt-hours per kilogram, and about 260 Whr/kg at the pack level. HyPoint says it can already demonstrate a system-level specific power of 1,000 Watts per kilogram and an energy density of 530 kW-hr/kg. The company points to its next generation of “turbo air-cooled” units to produce even more power and show better energy density. These improvements would make the …