汽车电池的热绝缘和防火气凝复合材料
Xianbo Hou1, Jia Chen1, Xuelei Fang1
1College of Aerospace Engineering, Chongqing University, Chongqing 400030, China.
Gels (Basel, Switzerland)
|October 28, 2025
概括
气凝材料为新能源汽车电池提供卓越的绝热和耐火性,解决了高能量密度系统的安全问题. 这些先进材料对于下一代电池热管理系统至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 储能 储能 储能 储能 储能 储能
背景情况:
- 新能源汽车中的高能量密度电池带来了热安全挑战.
- 现有的阻燃材料对于先进的电池系统来说是不够的.
- 电池中的热失控需要改进的热管理系统 (BTMS).
研究的目的:
- 审查汽车电池中的热失控现象和保护措施.
- 突出气凝材料作为电池热保护的革命性解决方案.
- 探索用于下一代BTMS的气凝复合材料的进步.
主要方法:
- 系统审查汽车电池中的热失控.
- 对气凝材料属性的分析 (导热性,耐火性).
- 对空气凝复合材料制备和纤维矩阵技术的突破进行审查.
主要成果:
- 气凝具有出色的绝热性能 (0.013-0.018 W/(m·K)) 和耐火性 (>1100 °C,UL94 V-0).
- 气凝复合材料有效地阻断热失控传播,减少重量,提高体积效率.
- 汽车防火气凝复合材料的工程价值的定量验证.
结论:
- 气凝材料是下一代动力电池热管理的有希望的解决方案.
- 对低成本气凝和混合复合材料的进一步研究是必不可少的.
- 建立了高性能BTMS的开发途径.
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