钠离子电池安全吗？会不会爆炸？

Is Sodium-ion Battery safe? Will it explode?    

钠离子电池的安全等级极高，属于高安全型新能源电池，正常合规使用几乎不会发生爆炸、起火等安全事故，热失控风险远低于三元锂电池，优于普通磷酸铁锂电池。从材料特性来看，钠电池电极材料、电解液化学性质稳定，燃点高、不易分解、不易释放可燃气体，热失控触发温度远高于锂电池；从结构设计来看，钠电池采用全铝箔集流体，无铜箔等易燃金属，搭配高强度隔膜、密封外壳，以及BMS智能保护系统，多重安全防护；从实测安全测试来看，钠电池可轻松通过穿刺、挤压、重物冲击、过充、短路、高温烘烤等严苛安全测试，绝大多数情况下不会出现起火、爆炸、剧烈热失控现象，仅会出现轻微发热、鼓包，无剧烈安全事故风险。日常商用、工业运行过程中，钠电池鼓包、漏液、自燃的概率极低，只要使用正规厂家生产的正品电池，搭配合规的BMS保护系统，规范使用，完全无需担心爆炸、起火等安全问题。

Sodium-ion Battery has an extremely high safety level, belonging to the high-safety new energy battery. Under normal and compliant use, there will be almost no safety accidents such as explosion and fire, and the thermal runaway risk is far lower than that of ternary lithium batteries, and superior to that of ordinary lithium iron phosphate batteries. From the perspective of material characteristics, the electrode materials and electrolyte of sodium batteries have stable chemical properties, high ignition point, are not easy to decompose and release flammable gases, and the thermal runaway trigger temperature is much higher than that of lithium batteries; from the perspective of structural design, sodium batteries adopt all-aluminum foil current collectors, without flammable metals such as copper foil, and are matched with high-strength separators, sealed shells, and BMS intelligent protection systems, with multiple safety protections; from the perspective of measured safety tests, sodium batteries can easily pass strict safety tests such as puncture, extrusion, heavy impact, overcharge, short circuit and high temperature baking. In most cases, there will be no fire, explosion or severe thermal runaway, only slight heating and swelling occur, and there is no risk of severe safety accidents. In the process of daily commercial and industrial operation, the probability of swelling, leakage and spontaneous combustion of sodium batteries is extremely low. As long as you use genuine batteries produced by regular manufacturers, match them with a compliant BMS protection system, and use them in a standardized manner, you don't need to worry about safety problems such as explosion and fire at all.