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A low concentration electrolyte additive for constructing solid–electrolyte interphase on a Zn metal anode for aqueous batteries.
- Source :
- Chemical Communications; 2/4/2024, Vol. 60 Issue 10, p1317-1320, 4p
- Publication Year :
- 2024
-
Abstract
- Zn metal anodes in aqueous batteries experience inhomogeneous deposition and corrosion issues. Herein, we introduced, at a low concentration, dioxane (DX) as an electrolyte additive to stabilize a Zn anode. The oxygen sites of DX endowed it with a strong affinity for Zn and Zn<superscript>2+</superscript>, resulting in its adsorption onto the Zn electrode surface and its coordination with Zn<superscript>2+</superscript> locally. The Zn<superscript>2+</superscript>-DX species exhibited a decreased lowest unoccupied molecular orbital energy level relative to those of water-involved components. The DX additive not only inhibited side reactions but also generated a stable solid–electrolyte interphase on the Zn electrode, ensuring a uniform Zn deposition. As a result of including the additive, the cycle life of the Zn symmetric cell was extended from 99 h to 2100 h, and the coulombic efficiency in Zn//Cu cell reached 99.5%. [ABSTRACT FROM AUTHOR]
- Subjects :
- SUPERIONIC conductors
FRONTIER orbitals
ANODES
ELECTROLYTES
METALS
ELECTRIC batteries
Subjects
Details
- Language :
- English
- ISSN :
- 13597345
- Volume :
- 60
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Chemical Communications
- Publication Type :
- Academic Journal
- Accession number :
- 175142117
- Full Text :
- https://doi.org/10.1039/d3cc05272a