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Journal of Power Sources, Vol.196, No.12, 5364-5376, 2011
Electromobility concept for racing cars based on lithium-ion batteries and supercapacitors
For the construction of an all-electric race car, all aspects from engineering design over cost estimation up to the road capability are illuminated. From the most promising batteries for electric vehicle propulsion, the state-of-the art and commercial availability of lithium-ion secondary batteries is critically discussed with respect to cycle-life and unfavorable charge-discharge conditions. A market-overview is given with respect to a small electric car. Different combinations of electric motors and a recuperation system have been investigated. Weight aspects of central drive systems were considered and compared with decentralized wheel-hub drives. As a result, a centralized high-speed drive train based on a permanent-magnet synchronous engine with high-energy magnets seems to be superior due to limited space for assembly. (C) 2010 Elsevier B.V. All rights reserved.
Keywords:Lithium-ion secondary battery;Electrochemical supercapacitor;Electric racing car;Battery-capacitor hybrid;Service life estimation