Clarifying the Impact of Electrode Material Heterogeneity on the Thermal Runaway Characteristics of Lithium‐Ion Batteries
The safety and efficiency of lithium‐ion batteries (LIBs) suggest a promising future for this technology, particularly in the automobile industry. However, thermal runaway—wherein a LIB undergoes an uncontrollable increase in temperature that may result in smoke, fire, or explosion—represents an imp...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2024-11-01
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| Series: | Advanced Energy & Sustainability Research |
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| Online Access: | https://doi.org/10.1002/aesr.202400161 |
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| author | Chenran Du Kun Yan Xueling Shen Yi Cui Xiaobing Li Jingjing Li Ran Xu Xiaoli Ma Qian Huang Yanyan Fang Hang Zhang |
| author_facet | Chenran Du Kun Yan Xueling Shen Yi Cui Xiaobing Li Jingjing Li Ran Xu Xiaoli Ma Qian Huang Yanyan Fang Hang Zhang |
| author_sort | Chenran Du |
| collection | DOAJ |
| description | The safety and efficiency of lithium‐ion batteries (LIBs) suggest a promising future for this technology, particularly in the automobile industry. However, thermal runaway—wherein a LIB undergoes an uncontrollable increase in temperature that may result in smoke, fire, or explosion—represents an important and widely studied failure type. Since the electrodes of LIBs are manufactured from porous composite materials, their heterogeneity can significantly influence the effective material characteristics and microscale behaviors of LIBs during operation. Microstructure geometric and electrochemical–thermal models are typically used to investigate these impacts. Herein, a microstructure geometric model is constructed of LIB's electrodes. A virtual multiphysics model is used to simulate the overcharging thermal runaway condition. The model's accuracy is validated through real‐world experiments. The model shows greater accuracy compared to the result from a conventional homogeneous geometric model and better reflects the heterogeneous internal phenomenon. The model is applied to a variable analysis in order to investigate how the varying heterogeneity of the cathode's porosity impacts the cell during overcharging thermal runaway behavior. Our results indicate that decreasing porosity heterogeneity at the cathode may delay thermal runaway, owing to the heterogeneous impact on particle diffusion behaviors and the side reaction rate. |
| format | Article |
| id | doaj-art-ddb064a01bd3418390d672a01d9982f2 |
| institution | DOAJ |
| issn | 2699-9412 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Energy & Sustainability Research |
| spelling | doaj-art-ddb064a01bd3418390d672a01d9982f22025-08-20T02:49:46ZengWiley-VCHAdvanced Energy & Sustainability Research2699-94122024-11-01511n/an/a10.1002/aesr.202400161Clarifying the Impact of Electrode Material Heterogeneity on the Thermal Runaway Characteristics of Lithium‐Ion BatteriesChenran Du0Kun Yan1Xueling Shen2Yi Cui3Xiaobing Li4Jingjing Li5Ran Xu6Xiaoli Ma7Qian Huang8Yanyan Fang9Hang Zhang10Test Department China Automotive Battery Research Institute Co., Ltd. No. 11 Xingke East Street Beijing 101407 ChinaTest Department China Automotive Battery Research Institute Co., Ltd. No. 11 Xingke East Street Beijing 101407 ChinaTest Department China Automotive Battery Research Institute Co., Ltd. No. 11 Xingke East Street Beijing 101407 ChinaTest Department China Automotive Battery Research Institute Co., Ltd. No. 11 Xingke East Street Beijing 101407 ChinaTest Department China Automotive Battery Research Institute Co., Ltd. No. 11 Xingke East Street Beijing 101407 ChinaTest Department China Automotive Battery Research Institute Co., Ltd. No. 11 Xingke East Street Beijing 101407 ChinaTest Department China Automotive Battery Research Institute Co., Ltd. No. 11 Xingke East Street Beijing 101407 ChinaTest Department China Automotive Battery Research Institute Co., Ltd. No. 11 Xingke East Street Beijing 101407 ChinaTest Department China Automotive Battery Research Institute Co., Ltd. No. 11 Xingke East Street Beijing 101407 ChinaTest Department China Automotive Battery Research Institute Co., Ltd. No. 11 Xingke East Street Beijing 101407 ChinaTest Department China Automotive Battery Research Institute Co., Ltd. No. 11 Xingke East Street Beijing 101407 ChinaThe safety and efficiency of lithium‐ion batteries (LIBs) suggest a promising future for this technology, particularly in the automobile industry. However, thermal runaway—wherein a LIB undergoes an uncontrollable increase in temperature that may result in smoke, fire, or explosion—represents an important and widely studied failure type. Since the electrodes of LIBs are manufactured from porous composite materials, their heterogeneity can significantly influence the effective material characteristics and microscale behaviors of LIBs during operation. Microstructure geometric and electrochemical–thermal models are typically used to investigate these impacts. Herein, a microstructure geometric model is constructed of LIB's electrodes. A virtual multiphysics model is used to simulate the overcharging thermal runaway condition. The model's accuracy is validated through real‐world experiments. The model shows greater accuracy compared to the result from a conventional homogeneous geometric model and better reflects the heterogeneous internal phenomenon. The model is applied to a variable analysis in order to investigate how the varying heterogeneity of the cathode's porosity impacts the cell during overcharging thermal runaway behavior. Our results indicate that decreasing porosity heterogeneity at the cathode may delay thermal runaway, owing to the heterogeneous impact on particle diffusion behaviors and the side reaction rate.https://doi.org/10.1002/aesr.202400161heterogeneous microstructureslithium‐ion batteriesmultiphysics modelsthermal runaways |
| spellingShingle | Chenran Du Kun Yan Xueling Shen Yi Cui Xiaobing Li Jingjing Li Ran Xu Xiaoli Ma Qian Huang Yanyan Fang Hang Zhang Clarifying the Impact of Electrode Material Heterogeneity on the Thermal Runaway Characteristics of Lithium‐Ion Batteries Advanced Energy & Sustainability Research heterogeneous microstructures lithium‐ion batteries multiphysics models thermal runaways |
| title | Clarifying the Impact of Electrode Material Heterogeneity on the Thermal Runaway Characteristics of Lithium‐Ion Batteries |
| title_full | Clarifying the Impact of Electrode Material Heterogeneity on the Thermal Runaway Characteristics of Lithium‐Ion Batteries |
| title_fullStr | Clarifying the Impact of Electrode Material Heterogeneity on the Thermal Runaway Characteristics of Lithium‐Ion Batteries |
| title_full_unstemmed | Clarifying the Impact of Electrode Material Heterogeneity on the Thermal Runaway Characteristics of Lithium‐Ion Batteries |
| title_short | Clarifying the Impact of Electrode Material Heterogeneity on the Thermal Runaway Characteristics of Lithium‐Ion Batteries |
| title_sort | clarifying the impact of electrode material heterogeneity on the thermal runaway characteristics of lithium ion batteries |
| topic | heterogeneous microstructures lithium‐ion batteries multiphysics models thermal runaways |
| url | https://doi.org/10.1002/aesr.202400161 |
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