Oxygen vacancy engineering boosted manganese vanadate toward high stability aqueous zinc ion batteries

Luo，Ping1,2,3,7; Huang，Zhen1,2,3; Liu，Gangyuan1,2,3; Liu，Chang1,2,3; Zhang，Peiping1,2,3; Xiao，Yao1,2,3; Tang，Wen4; Zhang，Wenwei5; Tang，Han1,2,3; Dong，Shijie1,2,3,6

2022-10-25

10.1016/j.jallcom.2022.165804

JOURNAL OF ALLOYS AND COMPOUNDS   影响因子和分区

0925-8388

1873-4669

Aqueous zinc-ion batteries (AZIBs) are attractive alternatives to conventional battery technologies owing to their low-cost, safety and environmental friendliness. The development of AZIBs has thus far proceeded rapidly; however, finding suitable materials for AZIB cathodes with high capacity, long-cycle stability, fast reaction kinetics has proved challenging. In this study, a manganese vanadate precursor (MnVO·1.17 HO; MVO) was prepared using a simple hydrothermal method and calcined at a low temperature (250 °C) to generate oxygen vacancies (MnVO·0.64 HO; MVO-250). The presence of oxygen vacancies effectively provide active sites, increase surface reactivity to improve zinc-ion storage, and inhibit the dissolution of electrode materials in the electrolyte. Consequently, MVO-250 exhibits a superior specific capacity and long-cycle performance to MVO. Moreover, after 4000 cycles at 5 A g, the discharge specific capacity of the MVO-250 electrode remain at 150 mA h g, while that of MVO is only (76 mA h g). Owing to its high pseudocapacitance (90.5%) at 1.0 mV s, MVO-250 has a higher zinc ion diffusion coefficient than MVO (77.2%). This research demonstrates the diverse potential applications prospect of the modification of AZIBs cathode materials with oxygen vacancies.

Aqueous zinc-ion battery Cathode Fast kinetics Oxygen vacancy Reaction mechanism

SCI ; EI

英语

其他

National Natural Science Foundation of China[51771071];

Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering

Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:000819473900001

ELSEVIER SCIENCE SA

20222612276964

Electric discharges ; Electrolytes ; Environmental technology ; Ions ; Manganese ; Oxygen vacancies ; Reaction kinetics ; Secondary batteries ; Temperature ; Zinc

Environmental Engineering:454 ; Manganese and Alloys:543.2 ; Zinc and Alloys:546.3 ; Thermodynamics:641.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Electric Batteries and Fuel Cells:702 ; Secondary Batteries:702.1.2 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Crystalline Solids:933.1

MATERIALS SCIENCE

2-s2.0-85132719738

Scopus

1.Hubei Provincial Key Laboratory of Green Materials for Light Industry,School of Materials and Chemical Engineering,Hubei University of Technology,Wuhan,430068,China
2.New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base,Wuhan,430068,China
3.Hubei Engineering Laboratory of Automotive Lightweight Materials and Processing,School of Materials and Chemical Engineering,Hubei University of Technology,Wuhan,430068,China
4.SUSTech Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,518055,China
5.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Hubei,430070,China
6.Wuhan Polytechnic University,Wuhan,430023,China
7.Hubei Longzhong Laboratory,Xiangyang,Hubei,441000,China

Luo，Ping,Huang，Zhen,Liu，Gangyuan,et al. Oxygen vacancy engineering boosted manganese vanadate toward high stability aqueous zinc ion batteries[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2022,919.

Luo，Ping.,Huang，Zhen.,Liu，Gangyuan.,Liu，Chang.,Zhang，Peiping.,...&Dong，Shijie.(2022).Oxygen vacancy engineering boosted manganese vanadate toward high stability aqueous zinc ion batteries.JOURNAL OF ALLOYS AND COMPOUNDS,919.

Luo，Ping,et al."Oxygen vacancy engineering boosted manganese vanadate toward high stability aqueous zinc ion batteries".JOURNAL OF ALLOYS AND COMPOUNDS 919(2022).