#NIO multiple choice# For electric vehicle power batteries, the most important thing is not to catch fire in the event of a collision. The national standard stipulates that when the battery is in thermal runaway, it must "not catch fire or explode within 5 minutes", while NIO designs it according to the standard of "never catch fire, never explode". NIO batteries use a five-layer protection non-heat-spreading safety design, including thermal runaway sensors, anti-high-voltage arcing, active cooling, heat insulation design and barrier-free flues to ensure battery safety. ​

#NIO 选择题# 对于电动车动力电池而言,最重要的就是遭遇碰撞不起火。国标规定电池热失控时要保证「5分钟内不起火不爆炸」,蔚来则是按照「永不起火,永不爆炸」的标准来设计。蔚来电池采用五重防护的无热蔓延安全设计,包括热失控传感器、防高压拉弧、主动降温、隔热设计和无障碍烟道,确保电池安全。 ​

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