- 著者
- Quanyi LIU Qian ZHU Wentian ZHU Xiaoying YI
- 出版者
- The Electrochemical Society of Japan
- 雑誌
- Electrochemistry (ISSN:13443542)
- 巻号頁・発行日
- vol.90, no.8, pp.087003, 2022-08-05 (Released:2022-08-05)
- 参考文献数
- 31
- 被引用文献数
- 1 5
With the improvement of lithium-ion batteries in civil aviation transportation, the thermal safety of lithium-ion batteries can not be ignored. Especially in a battery pack, the thermal runaway of batteries can spread from cell to cell, resulting in catastrophic hazards. This work focuses on the experimental setup and analysis of the experimental parameters of lithium-ion batteries with different thicknesses of aerogel felt to study the blocking effect of barrier materials on thermal runaway propagation of lithium-ion batteries in civil aviation transport. The aerogel felt was selected as the barrier material and a series of experiments were carried out with different thicknesses of 1 mm, 3 mm, and 6 mm. The results demonstrated that the increase of aerogel felt thickness exhibited excellent performance in delaying lithium-ion battery thermal runaway. Additionally, a simplified thermal model of thermal runaway propagation was proposed to explain the thermal runaway propagation in the battery to adjacent batteries. These results provide valuable suggestions and enlightenment for the aviation safety transportation of lithium-ion batteries.
- 著者
- Quanyi LIU Qian ZHU Wentian ZHU Xiaoying YI Xu HAN
- 出版者
- The Electrochemical Society of Japan
- 雑誌
- Electrochemistry (ISSN:13443542)
- 巻号頁・発行日
- vol.90, no.8, pp.087004, 2022-08-05 (Released:2022-08-05)
- 参考文献数
- 21
- 被引用文献数
- 1 5
To better understand the thermal runaway characteristics of lithium-ion batteries in civil aviation transportation environments, an experimental platform for the fire and explosion of lithium-ion batteries was designed and built. The 18650 NCM lithium-ion battery was selected as the test sample to study the influence of different initial pressures on the thermal runaway characteristics of the lithium-ion battery pack in a confined space. The results showed that, under 61 kPa, the initial thermal runaway triggering time is longer, the initial thermal runaway temperature is higher, and the explosion pressure and TNT equivalent are lower than that under 96 kPa. The mass loss increased with the increase of pressure and the number of batteries. In addition, the initial thermal runaway triggering time and temperature are affected by the number of batteries. These results could provide some support for civil aviation transportation safety.