Teng Jia , Ziyao Zeng , Hang Yu , Chuyuan Ma , Junxin Huang
{"title":"Early monitoring and warning of overcharge thermal runaway in lithium-ion battery under various charging methods","authors":"Teng Jia , Ziyao Zeng , Hang Yu , Chuyuan Ma , Junxin Huang","doi":"10.1016/j.applthermaleng.2025.127322","DOIUrl":null,"url":null,"abstract":"<div><div>In order to advance the early warning time window for overcharge-induced thermal runaway in lithium-ion batteries and enhance the accuracy and real-time monitoring of battery safety status, a novel early warning model for overcharge-induced thermal runaway is proposed. Experiments were conducted on the thermal runaway behavior of ternary lithium-ion batteries under various overcharging rates, the effects of constant current constant voltage (CC-CV) overcharge and constant current (CC) overcharge on the thermal runaway behavior of lithium-ion batteries were compared. The results indicate that the internal temperature during CC overcharging is higher than that during CC-CV overcharging. Under the CC-CV charging mode, the temperature differences between the internal and external maximum temperatures at 0.5 C and 7 C overcharges are 55 °C and 29.5 °C, respectively. Under the CC charging mode, the maximum temperature differences between the inside and outside of the battery at 0.5 C and 7 C overcharges reach 75.2 °C and 66.1 °C, respectively. Notably, high-rate CC overcharging (5 C, 7 C) can trigger the opening of the battery’s pressure relief valve, with the maximum internal temperature reaching 115 °C. The characteristic parameters of thermal runaway caused by CC charging were extracted, and a two-level early warning model for overcharge-induced thermal runaway in lithium-ion batteries was established, leveraging the multi-parameter coupling of external temperature, temperature rise rate, and voltage.</div></div>","PeriodicalId":8201,"journal":{"name":"Applied Thermal Engineering","volume":"278 ","pages":"Article 127322"},"PeriodicalIF":6.1000,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Thermal Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1359431125019143","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
In order to advance the early warning time window for overcharge-induced thermal runaway in lithium-ion batteries and enhance the accuracy and real-time monitoring of battery safety status, a novel early warning model for overcharge-induced thermal runaway is proposed. Experiments were conducted on the thermal runaway behavior of ternary lithium-ion batteries under various overcharging rates, the effects of constant current constant voltage (CC-CV) overcharge and constant current (CC) overcharge on the thermal runaway behavior of lithium-ion batteries were compared. The results indicate that the internal temperature during CC overcharging is higher than that during CC-CV overcharging. Under the CC-CV charging mode, the temperature differences between the internal and external maximum temperatures at 0.5 C and 7 C overcharges are 55 °C and 29.5 °C, respectively. Under the CC charging mode, the maximum temperature differences between the inside and outside of the battery at 0.5 C and 7 C overcharges reach 75.2 °C and 66.1 °C, respectively. Notably, high-rate CC overcharging (5 C, 7 C) can trigger the opening of the battery’s pressure relief valve, with the maximum internal temperature reaching 115 °C. The characteristic parameters of thermal runaway caused by CC charging were extracted, and a two-level early warning model for overcharge-induced thermal runaway in lithium-ion batteries was established, leveraging the multi-parameter coupling of external temperature, temperature rise rate, and voltage.
期刊介绍:
Applied Thermal Engineering disseminates novel research related to the design, development and demonstration of components, devices, equipment, technologies and systems involving thermal processes for the production, storage, utilization and conservation of energy, with a focus on engineering application.
The journal publishes high-quality and high-impact Original Research Articles, Review Articles, Short Communications and Letters to the Editor on cutting-edge innovations in research, and recent advances or issues of interest to the thermal engineering community.