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The Projectile Test

Context

This test is known as the fire exposure and projectile test. It determines whether an exploding cell will spread fire on a large scale. Thermal runaway can result in fire and explosion. During the fire exposure test, if a cell explodes and the projectiles from the battery puncture the steel screen it sits on, that indicates that the cell has the capacity to spread fire on a large scale if it overheats.

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Pathway
The Science of Thermal Runaway
Chapter
How does a lithium-ion battery work?
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