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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
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World Electr. Veh. J. 2010, 4(1), 9-13; https://doi.org/10.3390/wevj4010009

Analysis of the key factors affecting the energy efficiency of batteries in electric vehicle

1
Harbin Institute of Technology, Harbin, China
2
First Automobile Works, Changchun, China
*
Authors to whom correspondence should be addressed.
Published: 26 March 2010
PDF [202 KB, uploaded 17 May 2018]

Abstract

The energy efficiency for electric vehicle battery is affected by many factors. Through the definition of energy efficiency we find the relationship between energy efficiency, voltage efficiency and coulomb efficiency. The factors such as current, internal resistance, SOC and temperature which affect coulomb efficiency and voltage efficiency, will affect energy efficiency as well. An equation is given to show how internal resistance and current influence the energy efficiency. The relationship between these factors and energy efficiency was analyzed through theory and experimental data. This will show ways to increase battery energy efficiency and improve the battery performance.
Keywords: Energy efficiency; Coulomb efficiency; Voltage efficiency; Electric vehicle battery Energy efficiency; Coulomb efficiency; Voltage efficiency; Electric vehicle battery
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Lu, R.; Yang, A.; Xue, Y.; Xu, L.; Zhu, C. Analysis of the key factors affecting the energy efficiency of batteries in electric vehicle. World Electr. Veh. J. 2010, 4, 9-13.

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