CN109964338A - 一种锂离子电池用多层复合功能隔膜 - Google Patents

一种锂离子电池用多层复合功能隔膜 Download PDF

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CN109964338A
CN109964338A CN201680090794.2A CN201680090794A CN109964338A CN 109964338 A CN109964338 A CN 109964338A CN 201680090794 A CN201680090794 A CN 201680090794A CN 109964338 A CN109964338 A CN 109964338A
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layers
layer
multilayer complex
complex functional
diaphragm
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李建华
程素贞
王政强
余美华
智庆领
张鑫
闫绍军
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Shanghai Dinho New Material Technology Co ltd
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Abstract

本发明公开了一种锂离子电池用多层复合功能隔膜及其制备方法。本发明所述的多层复合功能隔膜包括A层，B层，C层及D层，其中A层为基膜，B层是由绝缘无机化合物或耐高温聚合物组成的多孔结构层；C层是由具有温度激发膨胀特性的高分子聚合物微球组成的多孔层；D层是熔点在80‑110℃，结晶度＜50%的热塑性树脂；所述B层，C层和D层依次附着在A层的一侧或者两侧。与现有的锂离子电池用隔膜相比，该多层复合功能隔膜具有优异的耐热性，其在200℃高温下加热1h以内，热收缩率小于1%；而且由于有机高分子微球的引入，实现了对电池的热闭合作用，提高了电池的安全性。

Description

PCT国内申请，说明书已公开。

Claims (14)

  1. PCT国内申请，权利要求书已公开。
CN201680090794.2A 2016-11-14 2016-11-14 一种锂离子电池用多层复合功能隔膜 Pending CN109964338A (zh)

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CN111916621A (zh) * 2020-08-19 2020-11-10 北京宇程科技有限公司 一种锂离子电池用耐高温复合隔膜及其制备方法
CN114335891A (zh) * 2020-09-30 2022-04-12 丰田自动车株式会社 锌二次电池以及锌二次电池用隔板
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CN115820064A (zh) * 2022-01-27 2023-03-21 宁德时代新能源科技股份有限公司 涂料组合物、隔离膜、二次电池、电池模块、电池包和用电装置
CN115820064B (zh) * 2022-01-27 2024-03-22 宁德时代新能源科技股份有限公司 涂料组合物、隔离膜、二次电池、电池模块、电池包和用电装置
CN114709565A (zh) * 2022-06-07 2022-07-05 中材锂膜(宁乡)有限公司 有机/无机复合层多孔隔膜、其制备方法及电化学装置

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