A novel electro‐thermal coupled model of lithium‐ion pouch battery covering heat generation distribution and tab thermal behaviours

International Journal of Energy ResearchVolume 44, Issue 14 p. 11725-11741 RESEARCH ARTICLE A novel electro-thermal coupled model of lithium-ion pouch battery covering heat generation distribution and tab thermal behaviours Yi Xie, Corresponding Author Yi Xie [email protected] orcid.org/0000-0002-1811-2997 School of Automotive Engineering, Chongqing University, Chongqing, China Correspondence Yi Xie, School of Automotive Engineering, Chongqing University, Chongqing 400044, China. Email: [email protected]Search for more papers by this authorXiaojing He, Xiaojing He School of Automotive Engineering, Chongqing University, Chongqing, ChinaSearch for more papers by this authorWei Li, Wei Li School of Automotive Engineering, Chongqing University, Chongqing, ChinaSearch for more papers by this authorYangjun Zhang, Yangjun Zhang State Key Lab of Automotive Safety and Energy, School of Vehicle and Mobility, Tsinghua University, Beijing, ChinaSearch for more papers by this authorDan Dan, Dan Dan State Key Lab of Automotive Safety and Energy, School of Vehicle and Mobility, Tsinghua University, Beijing, ChinaSearch for more papers by this authorKuining Lee, Kuining Lee Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education of China, Chongqing University, Chongqing, ChinaSearch for more papers by this authorJiangyan Liu, Jiangyan Liu Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education of China, Chongqing University, Chongqing, ChinaSearch for more papers by this author Yi Xie, Corresponding Author Yi Xie [email protected] orcid.org/0000-0002-1811-2997 School of Automotive Engineering, Chongqing University, Chongqing, China Correspondence Yi Xie, School of Automotive Engineering, Chongqing University, Chongqing 400044, China. Email: [email protected]Search for more papers by this authorXiaojing He, Xiaojing He School of Automotive Engineering, Chongqing University, Chongqing, ChinaSearch for more papers by this authorWei Li, Wei Li School of Automotive Engineering, Chongqing University, Chongqing, ChinaSearch for more papers by this authorYangjun Zhang, Yangjun Zhang State Key Lab of Automotive Safety and Energy, School of Vehicle and Mobility, Tsinghua University, Beijing, ChinaSearch for more papers by this authorDan Dan, Dan Dan State Key Lab of Automotive Safety and Energy, School of Vehicle and Mobility, Tsinghua University, Beijing, ChinaSearch for more papers by this authorKuining Lee, Kuining Lee Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education of China, Chongqing University, Chongqing, ChinaSearch for more papers by this authorJiangyan Liu, Jiangyan Liu Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education of China, Chongqing University, Chongqing, ChinaSearch for more papers by this author First published: 24 August 2020 https://doi.org/10.1002/er.5803Citations: 9 Funding information: National Key R&D Program of China, Grant/Award Numbers: 2018YFB0106102, 2018YFB0106104; NSF of China, Grant/Award Numbers: 51807017, U1864212; State Key Laboratory of Automotive Safety and Energy, Grant/Award Number: KF2031; Technological Innovation and Application Project of Chongqing, Grant/Award Number: cstc2018jszx-cyztzx0130 Read 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 Summary This paper develops an electro-thermal coupled model for a pouch battery which considers the influence of the electric potential distribution and thermal behaviours of tabs on the distributions of heat generation and temperature. This model reflects the connection between electric potential distribution and the heat generation distribution. Then, the proposed electro-thermal model is used to predict the thermal behaviour of a lithium-ion pouch battery under the conditions of various discharge currents and environmental temperatures. Tests are implemented to verify the prediction precision of the proposed thermal model. The results show that the electro-thermal coupled model can accurately predict both the temperature distribution and its rise. At 1 C discharge rate, the average mean static absolute errors (MSAEs) in the positive and negative tabs for all the ambient temperatures are 1.083 K and 0.377 K, respectively, and the average MSAE in the battery body is only 0.627 K; at the discharge rate of 3.5 C, the respective average MSAEs are 1.643 K for the positive tab, 0.581 K for the negative tab, and 0.889 K for the battery body. Last, the influence of the thermal contact resistance on the prediction of the tab temperature is studied. If it is considered in the thermal model of tabs, the predicted tab temperature is closer to the tested value and the MSAE can be limited within 2.65 K for the positive tab and 0.83 K for the negative tab in the cases researched. Citing Literature Volume44, Issue14November 2020Pages 11725-11741 RelatedInformation