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High‐Capacity and Long‐Life Zinc Electrodeposition Enabled by a Self‐Healable and Desolvation Shield for Aqueous Zinc‐Ion Batteries.
- Source :
-
Angewandte Chemie International Edition . Mar2022, Vol. 61 Issue 10, p1-8. 8p. - Publication Year :
- 2022
-
Abstract
- Artificial interfaces can alleviate the side reactions and the formation of the metallic (e.g., Li, Na, and Zn) dendrites. However, the traditional ones always breakdown during the repeated plating/stripping and fail to regulate the electrodeposition behaviors of the electrodes. Herein, a self‐healable ion regulator (SIR) is designed as a desolvation shield to protect the Zn electrodes and guide the Zn electrodeposition. Benefiting from the intermolecular hydrogen bonds, SIR shows a superb capability to in situ repair the plating/stripping‐induced cracks. Besides, the results of theoretical calculations and electrochemical characterizations show that the coating reduces water molecules in the solvated sheath of hydrated Zn2+ and restrains the random Zn2+ diffusion on the Zn surface. Even with a coating layer of only 360 nm, the SIR‐modified Zn electrode exhibits excellent long‐term stability for >3500 h at 2 mAh cm−2 and >950 h at an ultrahigh areal capacity of 20 mAh cm−2. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ZINC ions
*ELECTROPLATING
*DESOLVATION
*ZINC
*SURFACE diffusion
*HYDROGEN bonding
Subjects
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 61
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 155381201
- Full Text :
- https://doi.org/10.1002/anie.202114789