From Ionogels to Biredox Ionic Liquids: Some Emerging Opportunities for Electrochemical Energy Storage and Conversion Devices,Advanced Energy Materials

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From Ionogels to Biredox Ionic Liquids: Some Emerging Opportunities for Electrochemical Energy Storage and Conversion Devices
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2017-09-04 , DOI: 10.1002/aenm.201700883
André Vioux ₁ , Benoit Coasne ₂

Affiliation

Ionic liquids (ILs) continue to receive attention for applications in electrochemistry because of their unique properties as charge carriers (electrolytes) and redox shuttles (solar cells) and their ability to promote energy storage either electrostatically (supercapacitors) or chemically (secondary batteries). More specifically, the confinement of ILs in nanopores or the adsorption at surfaces, are considered a promising strategy for all solid‐state energy storage and conversion devices. Upon such immobilization, one benefits from the specific properties of ILs (large electrochemical window, relatively high ionic conductivity, task‐specific functionalities, etc.) combined with surface and confinement effects that can be tuned by playing with the porosity and chemical nature of the host. Here, some emerging applications of ILs in electrochemistry are first discussed: silica‐based ionogels as solid electrolytes and systems that involve carbon host substrates, as typical electrode materials in electrical double layer capacitors and lithium secondary batteries. Also, a non‐exhaustive, yet a comprehensive picture of the confinement and surface effects at play in such applications is presented. Then, the confinement of task‐specific ILs such as protonic ILs, IL lithium salts, and biredox ILs, is discussed, which paves the way for promising perspectives. Finally, some concluding remarks are reported and directions for future work are suggested.

中文翻译：

从离子凝胶到Biredox离子液体：电化学能量存储和转换设备的一些新兴机会

离子液体（ILs）由于其作为电荷载流子（电解质）和氧化还原梭（太阳能电池）的独特特性以及它们能够促进静电（超级电容器）或化学（二次电池）的能量存储的能力而继续在电化学应用中受到关注。更具体地说，将IL限制在纳米孔中或将其吸附在表面上，被认为是所有固态能量存储和转换设备的有前途的策略。进行这种固定后，可以受益于IL的特定属性（较大的电化学窗口，相对较高的离子电导率，特定任务的功能等），以及可以通过发挥其孔隙率和化学性质来调节的表面和封闭效应。主持人。这里，首先讨论了IL的一些新兴应用：基于二氧化硅的离子凝胶作为固体电解质和涉及碳基质基质的系统，是双电层电容器和锂二次电池中的典型电极材料。此外，还提供了有关此类应用中限制作用和表面作用的非详尽无遗的全面介绍。然后，讨论了任务专用IL（例如质子IL，IL锂盐和Biredox IL）的限制，这为有前途的观点铺平了道路。最后，报告了一些总结性意见，并提出了今后工作的方向。作为双电层电容器和锂二次电池中的典型电极材料。此外，还提供了有关此类应用中限制作用和表面作用的非详尽无遗的全面介绍。然后，讨论了任务专用IL（例如质子IL，IL锂盐和Biredox IL）的限制，这为有前途的观点铺平了道路。最后，报告了一些总结性意见，并提出了今后工作的方向。作为双电层电容器和锂二次电池中的典型电极材料。此外，还提供了有关此类应用中限制作用和表面作用的非详尽无遗的全面介绍。然后，讨论了任务专用IL（例如质子IL，IL锂盐和Biredox IL）的限制，这为有前途的观点铺平了道路。最后，报告了一些总结性意见，并提出了今后工作的方向。

更新日期：2017-09-04

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