材料科学
阳极
储能
功率密度
阴极
MXenes公司
电容器
光电子学
多孔性
纳米技术
超级电容器
电容
电极
电气工程
功率(物理)
复合材料
化学
电压
量子力学
物理
工程类
物理化学
作者
Zhaodi Fan,Chaohui Wei,Lianghao Yu,Xia Zhou,Jingsheng Cai,Zhengnan Tian,Guifu Zou,Shi Xue Dou,Jingyu Sun
出处
期刊:ACS Nano
[American Chemical Society]
日期:2020-01-03
卷期号:14 (1): 867-876
被引量:202
标识
DOI:10.1021/acsnano.9b08030
摘要
3D printing technology has stimulated a burgeoning interest to fabricate customized architectures in a facile and scalable manner targeting wide ranged energy storage applications. Nevertheless, 3D-printed hybrid capacitor devices synergizing favorable energy/power density have not yet been explored thus far. Herein, we demonstrate a 3D-printed sodium-ion hybrid capacitor (SIC) based on nitrogen-doped MXene (N-Ti3C2Tx) anode and activated carbon cathode. N-Ti3C2Tx affording a well-defined porous structure and uniform nitrogen doping can be obtained via a sacrificial template method. Thus-formulated ink can be directly printed to form electrode architecture without the request of a conventional current collector. The 3D-printed SICs, with a large areal mass loading up to 15.2 mg cm–2, can harvest an areal energy/power density of 1.18 mWh cm–2/40.15 mW cm–2, outperforming the state-of-the-art 3D-printed energy storage devices. Furthermore, our SIC also achieves a gravimetric energy/power density of 101.6 Wh kg–1/3269 W kg–1. This work demonstrates that the 3D printing technology is versatile enough to construct emerging energy storage systems reconciling high energy and power density.
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