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Energies 2014, 7(10), 6783-6797; doi:10.3390/en7106783

Study on the Optimal Charging Strategy for Lithium-Ion Batteries Used in Electric Vehicles

National Engineering Laboratory for Electric Vehicles, Beijing Institute of Technology, No. 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
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Received: 29 August 2014 / Revised: 25 September 2014 / Accepted: 17 October 2014 / Published: 21 October 2014
(This article belongs to the Special Issue Electrochemical Energy Storage—Battery and Capacitor)
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Abstract

The charging method of lithium-ion batteries used in electric vehicles (EVs) significantly affects its commercial application. This paper aims to make three contributions to the existing literature. (1) In order to achieve an efficient charging strategy for lithium-ion batteries with shorter charging time and lower charring loss, the trade-off problem between charging loss and charging time has been analyzed in details through the dynamic programing (DP) optimization algorithm; (2) To reduce the computation time consumed during the optimization process, we have proposed a database based optimization approach. After off-line calculation, the simulation results can be applied to on-line charge; (3) The novel database-based DP method is proposed and the simulation results illustrate that this method can effectively find the suboptimal charging strategies under a certain balance between the charging loss and charging time. View Full-Text
Keywords: electric vehicles (EVs); lithium-ion battery; dynamic programing (DP); charging strategies; database electric vehicles (EVs); lithium-ion battery; dynamic programing (DP); charging strategies; database
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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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Zhang, S.; Zhang, C.; Xiong, R.; Zhou, W. Study on the Optimal Charging Strategy for Lithium-Ion Batteries Used in Electric Vehicles. Energies 2014, 7, 6783-6797.

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