Ultrahigh-power electrochemical double-layer capacitors based on structurally integrated 3D carbon tube arrays
Ultrahigh-power electrochemical double-layer capacitors based on structurally integrated 3D carbon tube arrays
复制标题
DOI：
10.1007/s12274-023-6263-0
复制
发表时间：
2023-11
期刊：
影响因子：
9.9
通讯作者：
Fangming Han;Guowen Meng;D. Lin;Gan Chen;Shiping Zhang;Ou Qian;Xiaoguang Zhu;Bingqing Wei
中科院分区：
文献类型：
--
作者：
Fangming Han;Guowen Meng;D. Lin;Gan Chen;Shiping Zhang;Ou Qian;Xiaoguang Zhu;Bingqing Wei
电极的合理设计是电化学储能装置实现超高功率性能的关键。最近，我们利用3D多孔阳极氧化铝模板辅助方法构建了组织良好、集成的三维（3D）碳管（CT）网格（3D-CTG）作为双电层电容器（EDLC）的电极，表现出优异的频率响应性能。独特的设计保证了快速的离子迁移通道、优异的电子传导性和良好的结构稳定性。这项研究利用 3D-CTG 电极实现了最高的碳基超高功率 EDLC 之一，使用水电解质和有机电解质分别产生 437 W·cm−3 和 1708 W·cm−3 的超高功率。用这些电极构建的电容器在超高功率输出方面将具有重要的应用前景。 3D-CTGs电极的合理设计和制造已经证明了其构建具有超高功率性能的电容器的能力，并为需要高功率输出的应用开辟了新的可能性。
The rational design of electrodes is the key to achieving ultrahigh-power performance in electrochemical energy storage devices. Recently, we have constructed well-organized and integrated three-dimensional (3D) carbon tube (CT) grids (3D-CTGs) using a 3D porous anodic aluminum oxide template-assisted method as electrodes of electrical double-layer capacitors (EDLCs), showing excellent frequency response performance. The unique design warrants fast ion migration channels, excellent electronic conductivity, and good structural stability. This study achieved one of the highest carbon-based ultrahigh-power EDLCs with the 3D-CTG electrodes, resulting in ultrahigh power of 437 and 1708 W·cm−3with aqueous and organic electrolytes, respectively. Capacitors constructed with these electrodes would have important application prospects in the ultrahigh-power output. The rational design and fabrication of the 3D-CTGs electrodes have demonstrated their capability to build capacitors with ultrahigh-power performance and open up new possibilities for applications requiring high-power output.