一种智能复合材料隔膜及其制备方法和应用

By combining the shape memory polymer foam skeleton and gel electrolyte in the intelligent composite material separator, the shortcomings of traditional battery thermal management methods are solved, realizing the battery's autonomous regulation and over-temperature protection under high temperature conditions, thus improving the battery's safety and lifespan.

CN119833884BActive Publication Date: 2026-07-17HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN INST OF TECH
Filing Date
2025-01-09
Publication Date
2026-07-17

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Abstract

本发明涉及一种智能复合材料隔膜及其制备方法和应用。所述智能复合材料隔膜包括形状记忆聚合物泡沫骨架和填充在所述形状记忆聚合物泡沫骨架中的凝胶电解质；所述形状记忆聚合物泡沫骨架的制备原料包括环氧树脂和D‑230固化剂；所述凝胶电解质的制备原料包括N‑异丙基丙烯酰胺、丙烯酰胺、N,N'‑亚甲基双丙烯酰胺、过硫酸铵、四甲基乙二胺和锂盐溶液。本发明中的智能复合材料隔膜能够在电池工作过程中根据温度变化进行实时响应，调节离子电导率以控制电池输出功率，同时能够提供过温保护，具有自主热防护功能，此外还具有抑制锂枝晶生长的功能，能够延长电池使用寿命，特别适用于高能量密度、高安全性要求的电池应用场景。
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