High-Performance Lithium-Ion Capacitors Based on 3D Interconnected Nitrogen-Doped Ultrathin Carbon Frameworks with Encapsulated Fe2O3Nanoparticles

Qiao，Yi1; Jiang，Subin1; Xia，Rui2; Xiao，Yongcheng3; Zhu，Zhenxing3; Liu，Jing3; Wang，Aochen4; Gao，Meizhen1

2022-04-25

10.1021/acsaem.1c03954

ACS Applied Energy Materials   影响因子和分区

2574-0962

2574-0962

The mismatch of capacity and electrochemical reaction kinetics between capacitor-type and battery-type electrodes caused by the charge-storage mechanism hinders the development of lithium-ion capacitors (LICs). To relieve the above contradiction, a 3D interconnected nitrogen-doped ultrathin carbon (3DNC) framework encapsulated with Fe2O3 (3DNC@Fe2O3-700) was prepared and applied as the anode and cathode to fabricate symmetric LICs. The 3DNC framework can provide a stable structure, short electron transport length, and abundant active sites. Besides, the encapsulated nanoparticles (NPs) can enhance the capacity of the anode and, meanwhile, maintain the excellent cycling performance owing to the relatively strong interaction and abundant interface between 3DNC and Fe2O3 NPs. Benefiting from the unique properties, 3DNC@Fe2O3-700 anode exhibits a capacity of 946.6 mA h g-1 and a retention rate of 106.5% after 5000 cycles. 3DNC@Fe2O3-700 cathode displays a capacity of 82.1 mA h g-1 and a retention rate of 100% after 5000 cycles. 3DNC@Fe2O3-700//3DNC@Fe2O3-700 LICs show a superior performance of high energy density of 206 W h kg-1 at 226 W kg-1 and a capacity retention of 118.2% after 5000 cycles at 1 A g-1. This work may provide a route to relieve the mismatch between the anode and cathode for high-performance symmetric LICs.

encapsulated Fe2O3nanoparticles lithium-ion capacitors N-doping carbon three-dimensional framework ultrathin porous carbon

SCI ; EI

英语

其他

National Natural Science Foundation of China[11674143];

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000813073600001

AMER CHEMICAL SOC

20221812049331

Anodes ; Cathodes ; Convolution ; Doping (additives) ; Electrochemical electrodes ; Electron transport properties ; Hematite ; Ions ; Lithium ; Lithium-ion batteries ; Nitrogen ; Porous materials ; Reaction kinetics ; Supercapacitor

Minerals:482.2 ; Lithium and Alloys:542.4 ; Alkali Metals:549.1 ; Electric Components:704.1 ; Electron Tubes:714.1 ; Information Theory and Signal Processing:716.1 ; Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Materials Science:951

2-s2.0-85129056567

Scopus

1.Key Laboratory for Magnetism and Materials of MOE,School of Materials and Energy,Lanzhou University,Lanzhou,730000,China
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.Graphene Institute of Lanzhou University-Fangda Carbon Co.,Key Laboratory of Special Function Materials and Structure Design of Ministry of Education,Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University,Lanzhou,730000,China
4.School of Physical Science and Technology,Lanzhou University,Lanzhou,222 South Tianshui Road,730000,China

Qiao，Yi,Jiang，Subin,Xia，Rui,et al. High-Performance Lithium-Ion Capacitors Based on 3D Interconnected Nitrogen-Doped Ultrathin Carbon Frameworks with Encapsulated Fe2O3Nanoparticles[J]. ACS Applied Energy Materials,2022,5(4):4329-4339.

Qiao，Yi.,Jiang，Subin.,Xia，Rui.,Xiao，Yongcheng.,Zhu，Zhenxing.,...&Gao，Meizhen.(2022).High-Performance Lithium-Ion Capacitors Based on 3D Interconnected Nitrogen-Doped Ultrathin Carbon Frameworks with Encapsulated Fe2O3Nanoparticles.ACS Applied Energy Materials,5(4),4329-4339.

Qiao，Yi,et al."High-Performance Lithium-Ion Capacitors Based on 3D Interconnected Nitrogen-Doped Ultrathin Carbon Frameworks with Encapsulated Fe2O3Nanoparticles".ACS Applied Energy Materials 5.4(2022):4329-4339.