Porous membrane with high curvature, three-dimensional heat-resistance skeleton: a new and practical separator candidate for high safety lithium ion battery.
Porous membrane with high curvature, three-dimensional heat-resistance skeleton: a new and practical separator candidate for high safety lithium ion battery.
复制标题
高曲率、三维耐热骨架多孔膜：高安全性锂离子电池新型实用隔膜候选
DOI：
10.1038/srep08255
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发表时间：
2015-02-05
影响因子：
4.6
通讯作者：
Liu Z
中科院分区：
文献类型：
--
作者：
Shi J;Xia Y;Yuan Z;Hu H;Li X;Zhang H;Liu Z
高性能锂离子电池的发展迫切需要具有高可靠性和安全性的隔膜。在这里，我们提出了一种新型实用的多孔膜，具有三维（3D）耐热骨架和高曲率孔结构，作为有前途的隔膜候选者，可促进电池安全性和性能的进步，超越传统隔膜。独特的材料性能与成熟的结构特征相结合，使3D多孔骨架具有多种有利的性能，包括优异的热稳定性、与液体电解质良好的润湿性、高离子电导率和内部短路保护功能等，从而获得良好的电池性能。考虑到简单且具有成本效益的制备过程，多孔膜被认为是未来锂离子电池隔膜的一个有趣的方向。
Separators with high reliability and security are in urgent demand for the advancement of high performance lithium ion batteries. Here, we present a new and practical porous membrane with three-dimension (3D) heat-resistant skeleton and high curvature pore structure as a promising separator candidate to facilitate advances in battery safety and performances beyond those obtained from the conventional separators. The unique material properties combining with the well-developed structural characteristics enable the 3D porous skeleton to own several favorable properties, including superior thermal stability, good wettability with liquid electrolyte, high ion conductivity and internal short-circuit protection function, etc. which give rise to acceptable battery performances. Considering the simply and cost-effective preparation process, the porous membrane is deemed to be an interesting direction for the future lithium ion battery separator.