Oxygen-Vacancy and Surface Modulation of Ultrathin Nickel Cobaltite Nanosheets as a High-Energy Cathode for Advanced Zn-Ion Batteries

被引:634
作者
Zeng, Yinxiang [1 ]
Lai, Zhengzhe [1 ]
Han, Yi [1 ]
Zhang, Haozhe [1 ]
Xie, Shilei [2 ]
Lu, Xihong [1 ]
机构
[1] Sun Yat Sen Univ, Key Lab Low Carbon Chem & Energy Conservat Guangd, Key Lab Bioinorgan & Synthet Chem, MOE,Sch Chem, Guangzhou 510275, Guangdong, Peoples R China
[2] Dongguan Univ Technol, Sch Environm & Civil Engn, Guangdong Engn & Technol Res Ctr Adv Nanomat, Dongguan 523808, Peoples R China
基金
中国国家自然科学基金;
关键词
high energy; nickel cobaltite; oxygen vacancies; surface functionalization; Zn-ion batteries; HIGH-PERFORMANCE; HIGH-CAPACITY; ULTRAFAST; ZINC; ARRAYS; ELECTROCATALYSTS; DENSITY; ANODES; LIFE;
D O I
10.1002/adma.201802396
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The development of high-capacity, Earth-abundant, and stable cathode materials for robust aqueous Zn-ion batteries is an ongoing challenge. Herein, ultrathin nickel cobaltite (NiCo2O4) nanosheets with enriched oxygen vacancies and surface phosphate ions (P-NiCo2O4-x) are reported as a new high-energy-density cathode material for rechargeable Zn-ion batteries. The oxygen-vacancy and surface phosphate-ion modulation are achieved by annealing the pristine NiCo2O4 nanosheets using a simple phosphating process. Benefiting from the merits of substantially improved electrical conductivity and increased concentration of active sites, the optimized P-NiCo2O4-x nanosheet electrode delivers remarkable capacity (309.2 mAh g(-1) at 6.0 A g(-1)) and extraordinary rate performance (64% capacity retention at 60.4 A g(-1)). Moreover, based on the P-NiCo2O4-x cathode, our fabricated P-NiCo2O4-x//Zn battery presents an impressive specific capacity of 361.3 mAh g(-1) at the high current density of 3.0 A g(-1) in an alkaline electrolyte. Furthermore, extremely high energy density (616.5 Wh kg(-1)) and power density (30.2 kW kg(-1)) are also achieved, which outperforms most of the previously reported aqueous Zn-ion batteries. This ultrafast and high-energy aqueous Zn-ion battery is promising for widespread application to electric vehicles and intelligent devices.
引用
收藏
页数:8
相关论文
共 51 条
[1]  
[Anonymous], 2015, ANGEW CHEM-GER EDIT
[2]   Research Progress and Prospect of Aqueous Zinc Ion Battery [J].
Chen Li-Neng ;
Yan Meng-Yu ;
Mei Zhi-Wen ;
Mai Li-Qiang .
JOURNAL OF INORGANIC MATERIALS, 2017, 32 (03) :225-234
[3]   Recent Achievements on Inorganic Electrode Materials for Lithium-Ion Batteries [J].
Croguennec, Laurence ;
Palacin, M. Rosa .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015, 137 (09) :3140-3156
[4]   Exceptional energy and new insight with a sodium-selenium battery based on a carbon nanosheet cathode and a pseudographite anode [J].
Ding, Jia ;
Zhou, Hui ;
Zhang, Hanlei ;
Stephenson, Tyler ;
Li, Zhi ;
Karpuzov, Dimitre ;
Mitlin, David .
ENERGY & ENVIRONMENTAL SCIENCE, 2017, 10 (01) :153-165
[5]   Ultrahigh Energy Density Realized by a Single-Layer β-Co(OH)2 All-Solid-State Asymmetric Supercapacitor [J].
Gao, Shan ;
Sun, Yongfu ;
Lei, Fengcai ;
Liang, Liang ;
Liu, Jiawei ;
Bi, Wentuan ;
Pan, Bicai ;
Xie, Yi .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (47) :12789-12793
[6]   Network-like mesoporous NiCo2O4 grown on carbon cloth for high-performance pseudocapacitors [J].
Gao, Suning ;
Liao, Fan ;
Ma, Shuzhen ;
Zhu, Lili ;
Shao, Mingwang .
JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (32) :16520-16527
[7]   Ultrafast high-capacity NiZn battery with NiAlCo-layered double hydroxide [J].
Gong, Ming ;
Li, Yanguang ;
Zhang, Hongbo ;
Zhang, Bo ;
Zhou, Wu ;
Feng, Ju ;
Wang, Hailiang ;
Liang, Yongye ;
Fan, Zhuangjun ;
Liu, Jie ;
Dai, Hongjie .
ENERGY & ENVIRONMENTAL SCIENCE, 2014, 7 (06) :2025-2032
[8]   Rational Design of Metal-Organic Framework Derived Hollow NiCo2O4 Arrays for Flexible Supercapacitor and Electrocatalysis [J].
Guan, Cao ;
Liu, Ximeng ;
Ren, Weina ;
Li, Xin ;
Cheng, Chuanwei ;
Wang, John .
ADVANCED ENERGY MATERIALS, 2017, 7 (12)
[9]   Improving the cycle life of a high-rate, high-potential aqueous dual ion battery using hyper-dendritic zinc and copper hexacyanoferrate [J].
Gupta, Tanya ;
Kim, Andrew ;
Phadke, Satyajit ;
Biswas, Shaurjo ;
Luong, Thao ;
Hertzberg, Benjamin J. ;
Chamoun, Mylad ;
Evans-Lutterodt, Kenneth ;
Steingart, Daniel A. .
JOURNAL OF POWER SOURCES, 2016, 305 :22-29
[10]   Layered VS2 Nanosheet-Based Aqueous Zn Ion Battery Cathode [J].
He, Pan ;
Yan, Mengyu ;
Zhang, Guobin ;
Sun, Ruimin ;
Chen, Lineng ;
An, Qinyou ;
Mai, Liqiang .
ADVANCED ENERGY MATERIALS, 2017, 7 (11)