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Thermal runaway propagation prevention

热失控扩散防护

Definition

Pack-level design measures such as barriers, venting and spacing that stop one cell's thermal runaway from igniting its neighbours; China's GB 38031-2025 makes no-fire, no-explosion thermal propagation a mandatory requirement.

Source

Xinhua / China MIIT, GB 38031-2025 (thermal diffusion test) — https://www.news.cn/20260629/2a2fa1facc034e6ea24b73bcd582ab43/c.html

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No vehicle in the current catalog (517 models) is currently annotated with this term. The definition and source above are provided for reference; a vehicle association is not implied.

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