Scalable Manufacturing of Solid Polymer Electrolytes with Superior Room-Temperature Ionic Conductivity

文献类型： 外文期刊

第一作者： Zhou, Zekun

作者： Zhou, Zekun;Tao, Zengren;Zhang, Linyun;Zheng, Xueying;Xiao, Xieyi;Liu, Zhen;Li, Xin;Zhang, Peng;Zhang, Linyun;Liu, Guangfeng;Zhao, Pengfei

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关键词： solid polymer electrolyte; scalable manufacturing; stability; supercapacitor

期刊名称：ACS APPLIED MATERIALS & INTERFACES （ 影响因子：10.383； 五年影响因子：10.382 ）

ISSN： 1944-8244

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收录情况： SCI

摘要： 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 x 10-3 S cm(-1) at 30 ?. 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 x 104 Pa from 30 to 120 ? 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 mu W hmiddotcm-2 at 160 ? and good temperature tolerance up to 160 ?. This scaling-up manufacture strategy shows tremendous potential to the advancing of SPEs in applications of flexible energy storage device.

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