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首页> 外文期刊>Advanced energy materials >Antimonene Engineered Highly Deformable Freestanding Electrode with Extraordinarily Improved Energy Storage Performance
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Antimonene Engineered Highly Deformable Freestanding Electrode with Extraordinarily Improved Energy Storage Performance

机译：锑工程设计的高度可变形的独立式电极，具有出色的储能性能

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摘要

Advanced 2D materials have spurred great interest as a new paradigm in pursuing improved energy storage performance. Herein, for the first time, antimonene is utilized as an effective active component for constructing highly deformable and editable freestanding film electrodes, as the basis of a supercapacitor with record-breaking electrode performance. The insertion of antimonene is able to improve the environmental stability of the antimonene/MXene composite electrode and remarkably enhance the energy storage capability in both protic and neutral electrolytes. Notably, an ultrahigh specific volumetric capacitance of 4255 F cm(-3) is achieved by the electrode tested in a1 m H2SO4 electrolyte, which represents the state-of-the-art value reported to date for supercapacitor electrodes based on MXenes. The flexible supercapacitors constructed by the composite electrode, also demonstrate highly competitive energy and power densities: 459.75 mWh cm(-3) and 3.12 W cm(-3) for the asymmetrical one with a much widened potential window of 2 V in neutral electrolyte; 112.52 mWh cm(-3) and 1 W cm(-3) for the symmetrical configuration with an outstanding capacitance of 1265 F cm(-3) in acidic media. This work sheds new light on the fabrication of high-performance supercapacitor electrodes with functionalities in different electrolyte media and various device configurations.
机译：先进的2D材料作为追求改进的能量存储性能的新范例引起了人们极大的兴趣。在本文中，锑单抗作为具有打破纪录的电极性能的超级电容器的基础，首次被用作构建高度可变形和可编辑的独立式薄膜电极的有效活性成分。插入锑可以改善锑/ MXene复合电极的环境稳定性，并显着提高质子和中性电解质的储能能力。值得注意的是，通过在1 m H2SO4电解质中测试的电极可以实现4255 F cm（-3）的超高比容，这是迄今为止报道的基于MXene的超级电容器电极的最新值。由复合电极构成的柔性超级电容器也显示出极具竞争力的能量和功率密度：对于不对称电极，在中性电解液中2 V的电位窗口大大变宽，为459.75 mWh cm（-3）和3.12 W cm（-3）。对称配置为112.52 mWh cm（-3）和1 W cm（-3），在酸性介质中具有出色的1265 F cm（-3）电容。这项工作为高性能超级电容器电极的制造提供了新的思路，该电极在不同的电解质介质和各种设备配置中具有功能。

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