Which aspect does thermal runaway primarily affect in aviation batteries?

Thermal runaway is a critical phenomenon that primarily pertains to battery safety. It occurs when a battery cell generates heat, and this heat causes further chemical reactions that increase the temperature, leading to an accelerating effect that can result in fire or explosion. In aviation, where safety is paramount, understanding the implications of thermal runaway is essential.

If thermal runaway occurs, it compromises the integrity of the battery and poses significant risks to the aircraft and its occupants. While thermal runaway can indirectly impact battery performance, longevity, and charging time, the most immediate and severe consequence is the risk it poses to safety. This is particularly concerning in aviation applications, where any failure in battery safety could lead to catastrophic outcomes.