X-ray imaging of Thermal Runaway in Li-ion Cell

In 'real-time X-ray imaging' experiments, a lithium-ion cell is subjected to an external heat source to trigger thermal runaway. The X-ray source and detector are positioned on opposite sides of the cell, and X-ray images are acquired at high frame rates to capture the thermal behavior of the battery in real-time.

The X-ray images reveal the thermal behavior of the battery, including the location and progression of thermal runaway, the formation of gas and vapor, and the structural changes in the battery. This information is crucial for understanding the underlying mechanisms of thermal runaway and for developing strategies to prevent or mitigate this phenomenon.

One of the key advantages of real-time X-ray imaging is that it provides a detailed understanding of the thermal behavior of the battery at different stages of thermal runaway. This information can be used to optimize the design of the battery, improve the safety and reliability of the battery, and reduce the risk of thermal runaway.