elib (German Aerospace Center) · 2012 · 147 citations · 9 references
Open access
EngineeringAerospace EngineeringElectrical EngineeringAircraft DesignPower ElectronicsPropulsionAircraft Electrical SystemsBattery SystemsElectric PropulsionEnergy StoragePropulsion IntegrationPropulsion SystemsAircraft Electric Propulsion SystemsAircraft Power StorageBattery Electric PropulsionBattery Energy StorageElectrical Energy Storage SystemsEnergy Storage For PropulsionFlightPropulsion System Requirements
Electric propulsion development has accelerated, especially for automotive use, where system mass is less critical than in ground transport. The study investigates applying electric propulsion to aircraft, where mass constraints are far tighter. The authors compare propulsion architectures and focus on battery energy storage for aircraft. First‑principle analysis shows that battery‑powered electric propulsion for small and medium aircraft faces limitations that require specific technological advances.
During the last years, the development of electric propulsion systems is pushed strongly, most notably for automotive applications. For ground based transportation, the system mass is relevant, but of relatively low importance. The paper addresses the application of electric propulsion systems in aeronautics, where all systems are much more constrained by their mass. After comparing different propulsion system architectures the focus is cast on the energy storage problem and here especially on battery storage systems. Using first order principles the limitations and required technology developments are demonstrated by introducing battery powered electric propulsion systems to small and medium sized aircraft.
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Li–O2 and Li–S batteries with high energy storage
Peter G. Bruce, Stefan A. Freunberger, Laurence J. Hardwick et al. · Nature Materials · 2011 · 9.4K citations
Natural Sciences, Materials Engineering, Materials Science +16