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Construction of Microporous Zincophilic Interface for Stable Zn Anode.
- Source :
-
Molecules . Jun2023, Vol. 28 Issue 12, p4789. 12p. - Publication Year :
- 2023
-
Abstract
- Aqueous zinc ion batteries (AZIBs) are promising electrochemical energy storage devices due to their high theoretical specific capacity, low cost, and environmental friendliness. However, uncontrolled dendrite growth poses a serious threat to the reversibility of Zn plating/stripping, which impacts the stability of batteries. Therefore, controlling the disordered dendrite growth remains a considerable challenge in the development of AZIBs. Herein, a ZIF-8-derived ZnO/C/N composite (ZOCC) interface layer was constructed on the surface of the Zn anode. The homogeneous distribution of zincophilic ZnO and the N element in the ZOCC facilitates directional Zn deposition on the (002) crystal plane. Moreover, the conductive skeleton with a microporous structure accelerates Zn2+ transport kinetics, resulting in a reduction in polarization. As a result, the stability and electrochemical properties of AZIBs are improved. Specifically, the ZOCC@Zn symmetric cell sustains over 1150 h at 0.5 mA cm−2 with 0.25 mA h cm−2, while the ZOCC@Zn half-cell achieves an outstanding Coulombic efficiency of 99.79% over 2000 cycles. This work provides a simple and effective strategy for improving the lifespan of AZIBs. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ANODES
*ZINC ions
*ENERGY storage
*DENDRITES
*ZINC oxide films
*FRIENDSHIP
Subjects
Details
- Language :
- English
- ISSN :
- 14203049
- Volume :
- 28
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Molecules
- Publication Type :
- Academic Journal
- Accession number :
- 164676850
- Full Text :
- https://doi.org/10.3390/molecules28124789