Manipulating Oxygen Vacancies to Spur Ion Kinetics in V 2 O 5 Structures for Superior Aqueous Zinc‐Ion Batteries
University of Science and Technology of China · Hefei National Center for Physical Sciences at Nanoscale · +5 more institutions
Abstract
Abstract Vanadium‐based intercalation materials have attracted considerable attention for aqueous zinc‐ion batteries (ZIBs). However, the sluggish interlaminar diffusion of zinc ions due to the strong electrostatic interaction, severely restricts their practical application. Herein, oxygen vacancy‐enriched V 2 O 5 structures (Zn 0.125 V 2 O 5 ·0.95H 2 O nanoflowers, O v ‐ZVO) with expanded interlamellar space and excellent structural stability are prepared for superior ZIBs. In situ electron paramagnetic resonance (EPR) and X‐ray diffraction (XRD) characterization revealed that numerous oxygen vacancies are generated at a relatively low reaction temperature because of partially escaped lattice water. In situ…
Citation impact
- FWCI
- 27.42
- Percentile
- 100%
- References
- 53
Authors
13- JYJiajia Ye
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
- PLPei‐Hua Li
Chinese Academy of Sciences, Institute of Solid State Physics
- HZHaoran Zhang
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
- ZSZong‐Yin Song
Chinese Academy of Sciences, Institute of Solid State Physics
- TFTianju Fan
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
Topics & keywords
- Materials science
- Electron paramagnetic resonance
- Aqueous solution
- Oxygen
- Electrochemistry
- Vacancy defect
- Zinc
- Ion
- Affordable and clean energy