Study on electrochemical and thermal characteristics of lithium-ion battery using the electrochemical-thermal coupled model

International Journal of Energy ResearchVolume 43, Issue 6 p. 2086-2107 RESEARCH ARTICLE Study on electrochemical and thermal characteristics of lithium-ion battery using the electrochemical-thermal coupled model Limei Wang, Limei Wang Automotive Engineering Research Institute, Jiangsu University, Zhenjiang, China School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, ChinaSearch for more papers by this authorJunyan Niu, Junyan Niu School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, ChinaSearch for more papers by this authorWen Zhao, Wen Zhao School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, ChinaSearch for more papers by this authorGuochun Li, Guochun Li Automotive Engineering Research Institute, Jiangsu University, Zhenjiang, ChinaSearch for more papers by this authorXiuliang Zhao, Corresponding Author Xiuliang Zhao zhaoxl@ujs.edu.cn orcid.org/0000-0002-2994-3729 School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, China Correspondence Xiuliang Zhao, School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China. Email: zhaoxl@ujs.edu.cnSearch for more papers by this author Limei Wang, Limei Wang Automotive Engineering Research Institute, Jiangsu University, Zhenjiang, China School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, ChinaSearch for more papers by this authorJunyan Niu, Junyan Niu School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, ChinaSearch for more papers by this authorWen Zhao, Wen Zhao School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, ChinaSearch for more papers by this authorGuochun Li, Guochun Li Automotive Engineering Research Institute, Jiangsu University, Zhenjiang, ChinaSearch for more papers by this authorXiuliang Zhao, Corresponding Author Xiuliang Zhao zhaoxl@ujs.edu.cn orcid.org/0000-0002-2994-3729 School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, China Correspondence Xiuliang Zhao, School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China. Email: zhaoxl@ujs.edu.cnSearch for more papers by this author First published: 01 March 2019 https://doi.org/10.1002/er.4410Citations: 22Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Summary The higher specific energy leads to more heat generation of a battery, which affects the performance and cycle life of a battery and even results in some security problems. In this paper, the capacity calibration, Hybrid Pulse Power Characteristic (HPPC), constant current (dis)charging, and entropy heat coefficient tests of chosen 11-Ah lithium-ion batteries are carried out. The entropy heat coefficient increases firstly and then decreases with the increase of the depth of discharge (DOD) and reaches the maximum value near 50% DOD. An electrochemical-thermal coupled model of the chosen battery is established and then verified by the tests. The simulation voltage and temperature trends are in agreement with the test results. The maximum voltage and temperature error is within 2.06% and 0.4°C, respectively. Based on the established model, the effects of adjustable parameters on electrochemical characteristic are systematically studied. Results show that the average current density, the thickness of the positive electrode, the initial and maximum lithium concentration of the positive electrode, and the radius of the positive electrode particle have great influence on battery capacity and voltage. In addition, the influence degree of the internal resistance of the solid electrolyte interface (SEI) layer, the thickness of negative electrode, and the initial and maximum lithium concentration of the negative electrode on the capacity and voltage is associated with certain constraints. Meanwhile, the influences of adjustable parameters related to thermal characteristic are also systematically analyzed. Results show that the average current density, the convective heat transfer coefficient, the thickness, and the maximum lithium concentration of the positive electrode have great influence on the temperature rise. Besides, the uniformity of the temperature distribution deteriorates with the increase of the convective heat transfer coefficient. Citing Literature Volume43, Issue6May 2019Pages 2086-2107 RelatedInformation