Elastic Single-Ion Conducting Polymer Electrolytes: Toward a Versatile Approach for Intrinsically Stretchable Functional Polymers
Elastic Single-Ion Conducting Polymer Electrolytes: Toward a Versatile Approach for Intrinsically Stretchable Functional Polymers
复制标题
弹性单离子传导聚合物电解质：迈向一种制备本质可拉伸功能聚合物的通用方法
DOI：
10.1021/acs.macromol.9b02683
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发表时间：
2020-05-12
期刊：
影响因子：
5.5
通讯作者：
Saito, Tomonori
中科院分区：
文献类型：
--
作者：
Cao, Peng-Fei;Li, Bingrui;Saito, Tomonori
可拉伸功能高分子材料的制备通常依赖于功能组分与弹性聚合物之间的物理粘合，而界面阻力是一个潜在的问题。在此，一个通用的方法在分子水平上的固有可拉伸的聚合物材料与定义的功能报告。采用单离子导电聚合物电解质（SICPE）来证明所提出的概念沿着其在具有改进的能量效率和延长的电池寿命的可拉伸电池/电子器件中的潜在应用。所得膜具有88-252%的断裂前伸长率，并且机械性能良好可调。使用所得SICPE膜组装的电池的恒电流测试显示出良好的循环性能，在100次循环后容量保持率为81.5%。在其他类型的可拉伸功能材料中，包括聚（乙烯基咔唑）为基础的半导体聚合物和聚（乙二醇）为基础的气体分离膜，进一步证明了所提出的分子水平设计的适用性。
Fabrication of stretchable functional polymeric materials usually relies on the physical adhesion between functional components and elastic polymers, while the interfacial resistance is a potential problem. Herein, a versatile approach on the molecular-level intrinsically stretchable polymer materials with defined functionality is reported. The single-ion conducting polymer electrolytes (SICPEs) were employed to demonstrate the proposed concept along with its potential application in stretchable batteries/electronics with improved energy efficiency and prolonged cell lifetime. The obtained membranes exhibit 88-252% elongation before breaking, and the mechanical properties are well adjustable. The galvanostatic test of the assembled cells using the obtained SICPE membrane exhibited a good cycling performance with a capacity retention of 81.5% after 100 cycles. The applicability of a proposed molecular-level design for intrinsically stretchable polymer materials is further demonstrated in other types of stretchable functional materials, including poly(vinylcarbazole)-based semiconducting polymers and poly(ethylene glycol)based gas separation membranes.