Scalable Manufacturing of Solid Polymer Electrolytes with Superior Room-Temperature Ionic Conductivity.
Scalable Manufacturing of Solid Polymer Electrolytes with Superior Room-Temperature Ionic Conductivity.
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DOI：
10.1021/acsami.2c01416
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发表时间：
2022-07
影响因子：
9.5
通讯作者：
Zekun Zhou;Zengren Tao;Linyun Zhang;X. Zheng;Xieyi Xiao;Zhen Liu;X. Li;Guangfeng Liu;
中科院分区：
文献类型：
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作者：
Zekun Zhou;Zengren Tao;Linyun Zhang;X. Zheng;Xieyi Xiao;Zhen Liu;X. Li;Guangfeng Liu;
开发了一种可扩展的制造方案，以制备基于聚合物的无溶剂全固态柔性储能装置，该装置基于双辊磨机和适应的橡胶混合技术。由商品聚甲基丙烯酸甲酯接枝天然橡胶（MG 30）和双（三氟甲磺酰）亚胺锂组成的固体聚合物电解质（SPE）在30 °C下具有2.7 × 10-3 S cm-1的上级离子电导率。小角X射线散射和红外光谱测试结果表明，复合材料具有良好的上级离子导电性，这是由于复合材料中形成了离子簇网络。此外，所制备的SPE在宽的温度范围内显示出良好的机械稳定性，即，如流变学数据所示，从30 ° C至120 °C的储能模量高于1 × 104 Pa。此外，SPE与炭黑填充的MG 30（即，MG 30 C）电极组装成柔性超级电容器电池，其电压窗口宽达3.5 V，在160 °C下的能量密度为28.4 μW·h·cm-2，耐温性能良好，最高可达160 °C。这种规模化的制造策略显示出巨大的潜力，推进SPE在柔性储能装置的应用。
A scalable manufacturing protocol is developed to prepare polymer-based solvent-free all-solid flexible energy storage devices based on a two-roll mill and adapted rubber mixing technology. The as-prepared solid polymer electrolytes (SPEs) consisting of commercial poly(methyl methacrylate)-grafted natural rubber (MG30) and lithium bis(trifluoromethanesulfonyl)imide achieve a superior ionic conductivity of 2.7 × 10-3 S cm-1 at 30 °C. The superior ionic conductivity is attributed to the formation of an ionic cluster network in the composite as proved by small-angle X-ray scattering and infrared spectroscopy measurements. Moreover, the as-prepared SPEs show good mechanical stability over a broad temperature range, that is , a storage modulus above 1 × 104 Pa from 30 to 120 °C as indicated by the rheology data. Furthermore, the SPEs were assembled with the carbon black-filled MG30 (i.e., MG30C) electrode into a flexible supercapacitor cell, which had a wide voltage window of 3.5 V, good energy density of 28.4 μW h·cm-2 at 160 °C, and good temperature tolerance up to 160 °C. This scaling-up manufacture strategy shows tremendous potential to the advancing of SPEs in applications of flexible energy storage device.