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用于安全和高性能离子电池的热调节变相复合分离器

Liang He¹, Yu Zheng¹, Lifen Tong¹

¹School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China; Sichuan Province Engineering Technology Research Center of Novel CN Polymeric Materials, Chengdu 611731, China.

Journal of colloid and interface science

|August 29, 2025

概括

使用相变材料 (PCM) 开发了一种用于离子电池 (LIB) 的新型温度调节分离器. 这种先进的分离器有效地减轻了内部温度的上升,提高了电池的安全性,并防止了热失控.

科学领域:

材料科学
电化学
电池技术

背景情况:

离子电池 (LIB) 对现代技术至关重要,但面临安全问题,特别是热失控.
电池分离器是安全操作的关键组件,可以实现离子传输,同时防止短路.

研究的目的:

设计和制造一个新的温度调节分离器.
通过减轻内部温度升级和防止热失控来提高LIB的安全性.

主要方法:

使用充满相变材料 (PCM) 的空心化纳米管合成了热敏复合分离器,并用聚多巴胺和聚乙烯酸封装.
评估了开发的分离器的热性能和电化学性能.

主要成果:

由于封装的PCM,复合分离器具有广泛的度范围 (3-12Jg-1).
分离器通过化PCM有效吸收热量,从而减轻内部温度的升高.
开发的分离器与商业的聚烯分离器相比,具有更高的电化学性能.

结论:

基于PCM的复合分离器通过防止热失控来提高LIB安全性.
这种创新的多功能分离器设计为未来的电池安全进步提供了宝贵的见解.

关键词:

复合分离器离子电池聚乙烯分离器热稳定性

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