Electric Eel-Inspired Soft Electrocytes for Solid-State Power Systems,Advanced Functional Materials

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Electric Eel-Inspired Soft Electrocytes for Solid-State Power Systems
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2023-10-02 , DOI: 10.1002/adfm.202309781
Won Bae Han ₁ , Dong‐Je Kim ₁ , Yong Min Kim ₂ , Gwan‐Jin Ko ₁ , Jeong‐Woong Shin ₁ , Tae‐Min Jang ₁ , Sungkeun Han ₁ , Heeseok Kang ₁ , Jun Hyeon Lim ₁ , Chan‐Hwi Eom ₁ , Joong Hoon Lee _{1,

3} , Seung Min Yang _{1,

4} , Kaveti Rajaram _{1,

5,

6} , Amay J. Bandodkar _{5,

6} , Hong Chul Moon ₂ , Suk‐Won Hwang _{1,

7,

8}

Affiliation

As the demand for power systems, including portable ones, is growing at an ever-faster pace, many studies are approaching to discover innovative materials for current battery technology or replace the existing ones with new systems through mimicking living things or nature. Here, a soft, solid-state power storage system featuring electric eel-inspired artificial electric organs capable of converting the chemical potential of an ionic gradient into electricity is introduced. These organs are constructed through the assembly of low and high ion-concentrated zwitterionic gel films with cation- and anion-selective intermembranes, which generate a rechargeable open-circuit voltage of ≈135 mV. Combined use of a chemically synthesized room-temperature ionic liquid and a high-boiling point organic solvent as ion-conducting electrolyte allows electric organs to withstand extreme temperatures ranging from −20 and 100 °C, while the thin and stretchable constituent layers facilitate mechanical flexibility without compromising electrical performance. Scalable integration of electric organs in series and parallel configurations achieves high levels of voltage and current outputs, and employment of origami folding geometry enables on-demand discharge upon self-registered folding, paving the way for portable, high-voltage energy sources in the fields of wearable electronics and soft robotics.

中文翻译：

用于固态电力系统的电鳗软电解质

随着对电源系统（包括便携式电源系统）的需求不断增长，许多研究正在寻找适合当前电池技术的创新材料，或者通过模仿生物或自然，用新系统取代现有的材料。在这里，介绍了一种软固态电力存储系统，该系统具有受电鳗启发的人造电器官，能够将离子梯度的化学势转化为电能。这些器官是通过将低和高离子浓度的两性离子凝胶膜与阳离子和阴离子选择性膜间组装而成，产生约 135 mV 的可充电开路电压。结合使用化学合成的室温离子液体和高沸点有机溶剂作为离子导电电解质，使电子器官能够承受-20至100°C的极端温度，而薄且可拉伸的组成层有利于机械灵活性而不影响电气性能。电气元件串联和并联配置的可扩展集成实现了高水平的电压和电流输出，并且采用折纸折叠几何形状可以实现自注册折叠时的按需放电，为现场便携式高压能源铺平了道路可穿戴电子产品和软机器人技术。

更新日期：2023-10-02

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