High-Performance Sodium-Ion Batteries Based on Nitrogen-Doped Mesoporous Carbon Spheres with Ultrathin Nanosheets

Zhong, Xiongwei1,2; Li, Yingzhi1; Zhang, Luozheng1; Tang, Jun1; Li, Xiangnan1; Liu, Chang1; Shao, Mengmeng2; Lu, Zhouguang1; Pan, Hui2,3; Xu, Baomin1

2019-01-23

10.1021/acsami.8b17473

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

Hard carbon exhibits high theoretical capacity for sodium-ion batteries. However, its practical application suffers from low electric conductivity, poor electrochemical stability, and sluggish kinetics. To tackle these challenges, novel nitrogen-doped carbon spheres with mesopores, ultra-high reversible sodium storage capacity of 334.7 mA h/g at 50 mA/g and an ultrahigh rate performance of 93.9 mA h/g at 5 A/g, which is better than most state-of-the-art carbon materials. The improved energy storage capacity is attributed to its unique architecture and optimal nitrogen doping, which provide abundant active sites, defects, and voids. Moreover, kinetic analysis and in situ Raman spectroscopy results reveal adsorption and adsorption intercalation mechanisms for Na+ storage in hard carbon at the slope region above 0.3 V and the other slope region of 0.3-0.02 V, respectively. We believe that our findings provide a novel tactic to design elaborate nanomaterials for the high-performance sodium-ion battery.

hard carbon carbon sphere nanosheets nitrogen-doping sodium-ion battery

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[21671096] ; National Natural Science Foundation of China[21603094]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000457067300048

AMER CHEMICAL SOC

20190306392120

Architectural acoustics ; Carbon ; Doping (additives) ; Metal ions ; Nanosheets ; Nitrogen ; Spheres ; Storage (materials) ; Structural optimization

Metallurgy:531.1 ; Storage:694.4 ; Architectural Acoustics:751.3 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Optimization Techniques:921.5 ; Solid State Physics:933

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
2.Univ Macau, Fac Sci & Technol, Inst Appl Phys & Mat Engn, Joint Key Lab,Minist Educ, Macau 999078, Peoples R China
3.Univ Macau, Fac Sci & Technol, Dept Chem & Phys, Macau 999078, Peoples R China

Zhong, Xiongwei,Li, Yingzhi,Zhang, Luozheng,et al. High-Performance Sodium-Ion Batteries Based on Nitrogen-Doped Mesoporous Carbon Spheres with Ultrathin Nanosheets[J]. ACS Applied Materials & Interfaces,2019,11(3):2970-2977.

Zhong, Xiongwei.,Li, Yingzhi.,Zhang, Luozheng.,Tang, Jun.,Li, Xiangnan.,...&Xu, Baomin.(2019).High-Performance Sodium-Ion Batteries Based on Nitrogen-Doped Mesoporous Carbon Spheres with Ultrathin Nanosheets.ACS Applied Materials & Interfaces,11(3),2970-2977.

Zhong, Xiongwei,et al."High-Performance Sodium-Ion Batteries Based on Nitrogen-Doped Mesoporous Carbon Spheres with Ultrathin Nanosheets".ACS Applied Materials & Interfaces 11.3(2019):2970-2977.