摘要
热失控安全是当下高比能电池及长里程电动车产业化必须解决的核心命题。历经十年,江淮汽车基于小容量圆形电芯,研究了热失控发生机理,从电池系统安全设计与验证角度论述热失控防护方案与五层次验证方案,目标实现一颗电芯定向爆喷,模组不发生热扩散,电池包及整车不失火,形成了简称“蜂窝电池”的系统解决方案。基于市场应用的车辆安全大数据分析及典型案例,实证了“蜂窝电池”热失控防护技术的有效性。
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