{"title":"A comparative study of the venting gas of lithium-ion batteries during thermal runaway triggered by various methods","authors":"Chengshan Xu, Zhuwei Fan, Mengqi Zhang, Peiben Wang, Huaibin Wang, Changyong Jin, Yong Peng, Fachao Jiang, Xuning Feng, Minggao Ouyang","doi":"10.1016/j.xcrp.2023.101705","DOIUrl":null,"url":null,"abstract":"<p>Different thermal runaway triggering methods in battery safety accidents can lead to different outcomes. In this study, four testing methods, including side heating, nail penetration, overcharging, and oven heating, are used to trigger two types of batteries (prismatic cells and pouch cells) within a closed bomb. Several safety properties are investigated, including temperature, amount of venting gas and pressure, gas composition, and the mass of the thermal runaway product. Gas chromatography analysis reveals that the main components in the venting gas are CO, CO<sub>2</sub>, H<sub>2</sub>, C<sub>2</sub>H<sub>4</sub>, and CH<sub>4</sub>. Among the four tests conducted for both battery types, overcharging is identified as posing the greatest threat to battery safety. The findings from this study can contribute to assessing the risk associated with different triggers for thermal runaway.</p>","PeriodicalId":9703,"journal":{"name":"Cell Reports Physical Science","volume":"127 ","pages":""},"PeriodicalIF":7.9000,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cell Reports Physical Science","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.1016/j.xcrp.2023.101705","RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
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Abstract
Different thermal runaway triggering methods in battery safety accidents can lead to different outcomes. In this study, four testing methods, including side heating, nail penetration, overcharging, and oven heating, are used to trigger two types of batteries (prismatic cells and pouch cells) within a closed bomb. Several safety properties are investigated, including temperature, amount of venting gas and pressure, gas composition, and the mass of the thermal runaway product. Gas chromatography analysis reveals that the main components in the venting gas are CO, CO2, H2, C2H4, and CH4. Among the four tests conducted for both battery types, overcharging is identified as posing the greatest threat to battery safety. The findings from this study can contribute to assessing the risk associated with different triggers for thermal runaway.
期刊介绍：
Cell Reports Physical Science, a premium open-access journal from Cell Press, features high-quality, cutting-edge research spanning the physical sciences. It serves as an open forum fostering collaboration among physical scientists while championing open science principles. Published works must signify significant advancements in fundamental insight or technological applications within fields such as chemistry, physics, materials science, energy science, engineering, and related interdisciplinary studies. In addition to longer articles, the journal considers impactful short-form reports and short reviews covering recent literature in emerging fields. Continually adapting to the evolving open science landscape, the journal reviews its policies to align with community consensus and best practices.
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