In battery safety, what is thermal runaway?

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Multiple Choice

In battery safety, what is thermal runaway?

Thermal runaway is a dangerous feedback loop where the battery generates heat faster than it can be removed. As temperature climbs, the reactions inside the cell speed up and produce more heat, which pushes the temperature up further, potentially leading to fires, venting, or explosions. This is a major concern in rechargeable batteries like lithium‑ion, where events such as internal shorts, overcharging, or physical damage can initiate the process and spread heat to nearby cells. Preventing it relies on good thermal management, proper charging safeguards, and avoiding conditions that push heat generation beyond cooling capacity. The other descriptions describe safe or unrelated processes, not the uncontrolled temperature rise that defines thermal runaway.

Thermal runaway is a dangerous feedback loop where the battery generates heat faster than it can be removed. As temperature climbs, the reactions inside the cell speed up and produce more heat, which pushes the temperature up further, potentially leading to fires, venting, or explosions. This is a major concern in rechargeable batteries like lithium‑ion, where events such as internal shorts, overcharging, or physical damage can initiate the process and spread heat to nearby cells. Preventing it relies on good thermal management, proper charging safeguards, and avoiding conditions that push heat generation beyond cooling capacity. The other descriptions describe safe or unrelated processes, not the uncontrolled temperature rise that defines thermal runaway.

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