Miniaturized butane fuel cell system enables new USB battery charger Butane was chosen for its strong safety record as well as its very large energy density (about 7,400 Wh/liter when burned with about 65 liters of air). As butane will not autoignite below 400° C (750° F), the operating temperature of a butane-fueled SOFC has to be at least 500° C (900° F) and can be as large as 1,000° C (1,800° F). Maintaining such temperatures in a miniaturized low-power fuel cell requires careful thermal design and novel approaches to insulation. Uncontrolled, just the radiation losses from the Nectar fuel cell would be in excess of 200 W, which is a bit of a problem for a fuel cell with an electric power output of 2 to 3 W. specifications USB 2.0 interface Standard +5V output >2.5W peak power 55,000 mW-hours of energy in a single nectar™ pod (>10 recharges of a typical smart phone per nectar™ pod) "Instant On" - nectar™ is always available and allows recharging to begin immediately Hot-swappable nectar™ pods, providing essentially infinite run-time nectar volume: ~150cc nectar weight: ~200g nectar pod volume: ~55cc nectar pod weight: ~35g Certified to relevant industry standards and IEC-62282-6-100 Approved for carry-on and use on board domestic and international flights under UN International Civil Aviation Organization (ICAO), International Air Transport Association (IATA) and U.S. Department of Transportation regulations Download the tech paper: "Powering the Wireless World"
Posted on: Sat, 20 Jul 2013 09:00:57 +0000