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Nitrogen-Doped Hard Carbon as Symmetric Electrodes for Sodium-Ion Capacitor

被引：21
|
作者：
Wang, Xiaoyan [1 ]
He, Shenggong [1 ]
Chen, Fuming [1 ]
Hou, Xianhua [1 ]
机构：
[1] South China Normal Univ, Sch Phys & Telecommun Engn,Engn Res Ctr MTEES,Min, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangdong Engn Technol Res Ctr Efficient Green En, Guangzhou 510006, Peoples R China
来源：
ENERGY & FUELS | 2020年 / 34卷 / 10期
基金：
中国国家自然科学基金;
关键词：
STORAGE;
D O I：
10.1021/acs.energyfuels.0c02764
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Sodium-ion capacitors (SICs) as new sodium storage devices combining the advantages of batteries and capacitors have been widely researched in recent years. Nevertheless, exploring kinetic matching of anode and cathode electrodes is a great challenge. In this work, the sodium-ion capacitor (SIC) was integrated with nitrogen-doped hard carbons (N-HCs) as the symmetric electrode, which possesses the virtues of a battery and supercapacitor. The SIC delivers not only a reversible capacity of 88 mA h g(-1) at 1000 mA g(-1) after 5000 cycles but also a high energy density of 197 Wh kg(-1) at 219 W kg(-1).
引用
收藏
页码：13144 / 13148
页数：5
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