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首页> 外文期刊>Chemistry of Materials: A Publication of the American Chemistry Society >All-Organic Sodium Hybrid Capacitor: A New, High-Energy, High-Power Energy Storage System Bridging Batteries and Capacitors
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All-Organic Sodium Hybrid Capacitor: A New, High-Energy, High-Power Energy Storage System Bridging Batteries and Capacitors

机译：全有机钠混合电容：新型，高能量，高功率储能系统桥接电池和电容器

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摘要

The development of hybrid capacitors (HCs) has become essential for meeting the rising demand for devices that simultaneously deliver high energy with high power. Although the challenge to develop high-performance HCs remains great, it is also simultaneously essential to develop an eco-friendly and cleaner energy storage system for sustainable future use. To date, hybrid capacitors utilize heavily toxic inorganic insertion electrodes and hazardous coke-derived porous carbon adsorption electrodes to host ions. Herein, we present a conceptually novel all-organic sodium hybrid capacitor (OHC), rationally designed by replacing the conventional electrodes with clean, green, and metal free organic molecules, to host ions. A high energy density of ～95 Wh kg–1 and an ultrahigh power density of 7 kW kg–1 (based on active mass in both electrodes) are achieved with a low energy loss of ～0.22% per 100 cycles (～89% retention after 5000 cycles), outperforming conventional HCs. The outstanding energy–power behavior of OHC bridges the performance gap between batteries and capacitors. This research holds great promise for the development of next-generation eco-friendly, clean, green, and safer high-energy, high-power devices.
机译：混合电容器（HCS）的开发对于满足同时提供高能量的设备的不断增长的需求成为必需品。虽然开发高性能HCS的挑战仍然很大，但它也同时开发一种以可持续的未来使用的环保和清洁的储能系统。迄今为止，混合电容器利用严重有毒的无机插入电极和危险的焦炭衍生的多孔碳吸附电极与宿主离子。在此，我们介绍了一种概念性新的全 - 有机钠混合电容器（OHC），通过用清洁，绿色和金属无有机分子替换传统电极来宿主离子来理性地设计。高能密度为〜95WH kg -1 和7 kW kg -1 -1 / sup>（基于两个电极中的有功物质）的超高功率密度进行了低能量损失每100次循环〜0.22％（5000次循环后〜89％），常规HCS优异。 OHC的出色能源行为桥接电池和电容器之间的性能差距。这项研究对于开发下一代环保，清洁，绿色和更安全的高能量，高能量，高功率设备具有很大的承担。

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