Using CPE Function to Size Capacitor Storage for Electric Vehicles and Quantifying Battery Degradation during Different Driving Cycles

Cong Zhang, Haitao Min, Yuanbin Yu, Dai Wang, Justin Luke, Daniel Opila and Samveg Saxena
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Cong Zhang: State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China
Haitao Min: State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China
Yuanbin Yu: State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China
Dai Wang: Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, CA 94710, USA
Justin Luke: Engineering Science, University of California, Berkeley, CA 94720, USA
Daniel Opila: Electrical and Computer Engineering Department, United States Naval Academy, Annapolis, MD 21402, USA
Samveg Saxena: Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, CA 94710, USA

Energies, 2016, vol. 9, issue 11, 1-23

Abstract: Range anxiety and battery cycle life are two major factors which restrict the development of electric vehicles. Battery degradation can be reduced by adding supercapacitors to create a Hybrid Energy Storage System. This paper proposes a systematic approach to configure the hybrid energy storage system and quantifies the battery degradation for electric vehicles when using supercapacitors. A continuous power-energy function is proposed to establish supercapacitor size based on national household travel survey statistics. By analyzing continuous driving action in standard driving cycles and special driving phases (start up and acceleration), the supercapacitor size is calculated to provide a compromise between the capacitor size and battery degradation. Estimating the battery degradation after 10 years, the battery capacity loss value decreases 17.55% and 21.6%, respectively, under the urban dynamometer driving schedule and the US06. Furthermore, the battery lifespan of the continuous power-energy configured system is prolonged 28.62% and 31.39%, respectively, compared with the battery alone system.

Keywords: battery; super-capacitor; electric vehicle; hybrid energy storage system; continuous power-energy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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