Effects of Different Safety Vent Bursting Pressures on Lithium-Ion Battery Thermal Runaway Process and Reaction Product Compositions
With the accelerated application of lithium-ion batteries, the design and optimization of their safety features have become increasingly important. However, the mechanisms by which different safety vent bursting pressures affect thermal runaway and its product compositions remain unclear. This study...
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| Format: | Article |
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MDPI AG
2025-02-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/5/1173 |
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| author | Honggang Sun Gang Li Haoran Zhao Yuchong Yang Chunmiao Yuan |
| author_facet | Honggang Sun Gang Li Haoran Zhao Yuchong Yang Chunmiao Yuan |
| author_sort | Honggang Sun |
| collection | DOAJ |
| description | With the accelerated application of lithium-ion batteries, the design and optimization of their safety features have become increasingly important. However, the mechanisms by which different safety vent bursting pressures affect thermal runaway and its product compositions remain unclear. This study comparatively investigates the effects of safety vent bursting pressures of 1 MPa, 2 MPa, and 3 MPa on thermal runaway characteristics and product compositions. The results indicate that, under these three conditions, the safety vent bursts at approximately 800 s, 1000 s, and 1300 s after heating begins, with gas volumes of 5.3 L, 6.1 L, and 6.5 L, respectively. Additionally, higher bursting pressures lead to increased H<sub>2</sub> production during thermal runaway. The characterization of solid product compositions reveals that the aluminum current collector participates in internal thermal runaway reactions, resulting in substances such as LiAlO<sub>2</sub> or metallic Al in the solid products under different bursting pressures. This study provides important references for improving existing battery safety standards and optimizing battery safety designs. It also provides insights and references for metal recovery from batteries and investigations into battery fires. |
| format | Article |
| id | doaj-art-b9b9c867fd0e4d90a9d09c58fe75cc74 |
| institution | OA Journals |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-b9b9c867fd0e4d90a9d09c58fe75cc742025-08-20T02:05:24ZengMDPI AGEnergies1996-10732025-02-01185117310.3390/en18051173Effects of Different Safety Vent Bursting Pressures on Lithium-Ion Battery Thermal Runaway Process and Reaction Product CompositionsHonggang Sun0Gang Li1Haoran Zhao2Yuchong Yang3Chunmiao Yuan4Fire & Explosion Protection Laboratory, Northeastern University, Shenyang 110819, ChinaFire & Explosion Protection Laboratory, Northeastern University, Shenyang 110819, ChinaFire & Explosion Protection Laboratory, Northeastern University, Shenyang 110819, ChinaFire & Explosion Protection Laboratory, Northeastern University, Shenyang 110819, ChinaFire & Explosion Protection Laboratory, Northeastern University, Shenyang 110819, ChinaWith the accelerated application of lithium-ion batteries, the design and optimization of their safety features have become increasingly important. However, the mechanisms by which different safety vent bursting pressures affect thermal runaway and its product compositions remain unclear. This study comparatively investigates the effects of safety vent bursting pressures of 1 MPa, 2 MPa, and 3 MPa on thermal runaway characteristics and product compositions. The results indicate that, under these three conditions, the safety vent bursts at approximately 800 s, 1000 s, and 1300 s after heating begins, with gas volumes of 5.3 L, 6.1 L, and 6.5 L, respectively. Additionally, higher bursting pressures lead to increased H<sub>2</sub> production during thermal runaway. The characterization of solid product compositions reveals that the aluminum current collector participates in internal thermal runaway reactions, resulting in substances such as LiAlO<sub>2</sub> or metallic Al in the solid products under different bursting pressures. This study provides important references for improving existing battery safety standards and optimizing battery safety designs. It also provides insights and references for metal recovery from batteries and investigations into battery fires.https://www.mdpi.com/1996-1073/18/5/1173lithium-ion batteriesthermal runawaysafety vent bursting pressurereaction product composition |
| spellingShingle | Honggang Sun Gang Li Haoran Zhao Yuchong Yang Chunmiao Yuan Effects of Different Safety Vent Bursting Pressures on Lithium-Ion Battery Thermal Runaway Process and Reaction Product Compositions Energies lithium-ion batteries thermal runaway safety vent bursting pressure reaction product composition |
| title | Effects of Different Safety Vent Bursting Pressures on Lithium-Ion Battery Thermal Runaway Process and Reaction Product Compositions |
| title_full | Effects of Different Safety Vent Bursting Pressures on Lithium-Ion Battery Thermal Runaway Process and Reaction Product Compositions |
| title_fullStr | Effects of Different Safety Vent Bursting Pressures on Lithium-Ion Battery Thermal Runaway Process and Reaction Product Compositions |
| title_full_unstemmed | Effects of Different Safety Vent Bursting Pressures on Lithium-Ion Battery Thermal Runaway Process and Reaction Product Compositions |
| title_short | Effects of Different Safety Vent Bursting Pressures on Lithium-Ion Battery Thermal Runaway Process and Reaction Product Compositions |
| title_sort | effects of different safety vent bursting pressures on lithium ion battery thermal runaway process and reaction product compositions |
| topic | lithium-ion batteries thermal runaway safety vent bursting pressure reaction product composition |
| url | https://www.mdpi.com/1996-1073/18/5/1173 |
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