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An advanced Lithium-ion battery optimal charging strategy based on a coupled thermoelectric model
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Liu, Kailong, Li, Kang, Yang, Zhile, Zhang, Cheng and Deng, Jing (2017) An advanced Lithium-ion battery optimal charging strategy based on a coupled thermoelectric model. Electrochimica Acta, 225 . pp. 330-344. doi:10.1016/j.electacta.2016.12.129
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Official URL: http://dx.doi.org/10.1016/j.electacta.2016.12.129
Abstract
Lithium-ion batteries are widely adopted as the power supplies for electric vehicles. A key but challenging issue is to achieve optimal battery charging, while taking into account of various constraints for safe, efficient and reliable operation. In this paper, a triple-objective function is first formulated for battery charging based on a coupled thermoelectric model. An advanced optimal charging strategy is then proposed to develop the optimal constant-current-constant-voltage (CCCV) charge current profile, which gives the best trade-off among three conflicting but important objectives for battery management. To be specific, a coupled thermoelectric battery model is first presented. Then, a specific triple-objective function consisting of three objectives, namely charging time, energy loss, and temperature rise (both the interior and surface), is proposed. Heuristic methods such as Teaching-learning-based-optimization (TLBO) and particle swarm optimization (PSO) are applied to optimize the triple-objective function, and their optimization performances are compared. The impacts of the weights for different terms in the objective function are then assessed. Experimental results show that the proposed optimal charging strategy is capable of offering desirable effective optimal charging current profiles and a proper trade-off among the conflicting objectives. Further, the proposed optimal charging strategy can be easily extended to other battery types.
| Item Type: | Journal Article | ||||||||
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| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TL Motor vehicles. Aeronautics. Astronautics |
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| Divisions: | Faculty of Science > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
| Library of Congress Subject Headings (LCSH): | Lithium ion batteries, Electric vehicles -- Batteries, Algorithms | ||||||||
| Journal or Publication Title: | Electrochimica Acta | ||||||||
| Publisher: | Pergamon | ||||||||
| ISSN: | 0013-4686 | ||||||||
| Official Date: | January 2017 | ||||||||
| Dates: |
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| Volume: | 225 | ||||||||
| Page Range: | pp. 330-344 | ||||||||
| DOI: | 10.1016/j.electacta.2016.12.129 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC) | ||||||||
| Grant number: | EP/L001063/1 (EPSRC), 51361130153, 61673256, 61533010 (NSFC) |
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