Side plate‐based cell‐to‐pack LiNi 0 . 5 Co 0 . 2 Mn 0 . 3 O 2 lithium battery module design with internal temperature acquisition and precise thermal modeling

International Journal of Energy ResearchVolume 45, Issue 15 p. 21254-21263 RESEARCH ARTICLE Side plate-based cell-to-pack LiNi0.5Co0.2Mn0.3O2 lithium battery module design with internal temperature acquisition and precise thermal modeling Huaibin Wang, Huaibin Wang Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, China State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, China China People's Police University, Langfang, ChinaSearch for more papers by this authorSiqi Chen, Corresponding Author Siqi Chen siqichen@tongji.edu.cn orcid.org/0000-0002-4156-5361 State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, China Clean Energy Automotive Engineering Center, Tongji University, Shanghai, China Correspondence Siqi Chen, Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China. Email: siqichen@tongji.edu.cn Zhiming Du, Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100084, China. Email: duzhiming430@sohu.comSearch for more papers by this authorZhiming Du, Corresponding Author Zhiming Du duzhiming430@sohu.com Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, China Correspondence Siqi Chen, Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China. Email: siqichen@tongji.edu.cn Zhiming Du, Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100084, China. Email: duzhiming430@sohu.comSearch for more papers by this author Huaibin Wang, Huaibin Wang Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, China State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, China China People's Police University, Langfang, ChinaSearch for more papers by this authorSiqi Chen, Corresponding Author Siqi Chen siqichen@tongji.edu.cn orcid.org/0000-0002-4156-5361 State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, China Clean Energy Automotive Engineering Center, Tongji University, Shanghai, China Correspondence Siqi Chen, Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China. Email: siqichen@tongji.edu.cn Zhiming Du, Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100084, China. Email: duzhiming430@sohu.comSearch for more papers by this authorZhiming Du, Corresponding Author Zhiming Du duzhiming430@sohu.com Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, China Correspondence Siqi Chen, Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China. Email: siqichen@tongji.edu.cn Zhiming Du, Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100084, China. Email: duzhiming430@sohu.comSearch for more papers by this author First published: 17 August 2021 https://doi.org/10.1002/er.7176Read 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 onFacebookTwitterLinked InRedditWechat Summary Cell-to-pack (CTP) NCM lithium battery cell has been widely applied in electric vehicles (EVs). However, severe heat generation issue significantly affects its safety and wide application. To analyze and solve the severe heat generation issue of large capacity CTP NCM523 (LiNi0.5Co0.2Mn0.3O2) lithium battery cell, internal temperature detection is carried out through thermocouple insertion, the peak temperature value of the internal rolled cell is proved to be about 2°C and 5°C higher than the temperature value of the external surface under 1/3 C and 1 C discharging, respectively. The relationship between the temperature rising trend and the internal resistance during the charging and discharging has also been found: with a lower state of charge level, the heat generation rate increases, and the peak temperature value occurs at the end of discharging process. Furthermore, a precise battery cell model considering the thermo-physical properties' difference of the battery casing and the internal rolled cell is proposed based on the internal temperature measurement in simulation and numerical calculation, closer to the real heat generation and conduction condition. Finally, the thermal performance of a side plate-based battery thermal management system is investigated through numerical calculation and simulation, the maximum temperature and temperature SD of the battery module under 1 C discharging for 3454 seconds are proved to be decreased by 0.7 K without any supplementary energy cost and coolant devices. Besides, the temperature uniformity of the battery module can be reduced to 0.51°C through the design. Internal temperature of a large capacity LiNi0.5Co0.2Mn0.3O2 Li-ion battery cell is acquired and analyzed. Precise simulation model is constructed to analyze the heat generation and transfer considering the battery casing and the internal roll. Side plate based battery module is proposed to decrease the temperature rise by 0.7°C without supplementary energy cost coolant devices. Temperature SD of the large capacity Li-ion battery module can be decreased within 0.51°C through the design. Volume45, Issue15December 2021Pages 21254-21263 RelatedInformation