标题：
Boron and nitrogen dual-doped carbon as a novel cathode for high performance hybrid ion capacitors
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所属单位：
材料科学与技术学院
发表刊物：
CHINESE CHEMICAL LETTERS
关键字：
Hybrid ion capacitors Boron-doping Nitrogen-doping Dual-doped carbon Template method Energy density
摘要：
Hybrid ion capacitors have been considered as a very attractive energy source with high energy density and power density since it combines both merits of lithium ion batteries and supercapacitors. However, their commercial application has been limited by the mismatch of charge-storage capacity and electrode kinetics between the capacitor-type cathode and battery-type anode. Herein, B and N dual-doped 3D superstructure carbon cathode is prepared through a facile template method. It delivers a high specific capacity, excellent rate capability and good cycling stability due to the B, N dual-doping, which has a profound effect in control the porosity, functional groups, and electronic conductivity for the carbon cathode. The hybrid ion capacitors using B, N dual-doping carbon cathode and prelithiated graphite anode show a high energy density of 115.5 Wh/kg at 250 W/kg and remain about 53.6 Wh/kg even at a high power density of 10 kW/kg. Additionally, the novel hybrid device achieves 763% capacity retention after 2000 cycles tested at 1250 Wikg power density. Significantly, the simultaneous manipulation of heteroatoms in carbon materials provides new opportunities to boost the energy and power density for hybrid ion capacitors. (C) 2018 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
ISSN号：
1001-8417
是否译文：
否
发表时间：
2018-04-01
合写作者：
蒋江明,聂平,方姗,张雅迪,安玉峰,付瑞瑞,张校刚
通讯作者：
张校刚,窦辉
发表时间：
2018-04-01
学位：理学博士学位
职称：教授
所在单位：材料科学与技术学院