Helmholtz Plane Engineering Enables Dendrite-Free and Subzero-Stable Aqueous Zn Batteries
Changchun University of Science and Technology · Ministry of Education · +5 more institutions
Abstract
The practical deployment of aqueous zinc-ion batteries (AZIBs) is hindered by uncontrolled zinc dendrite growth and poor low-temperature performance. Here, we introduce methanol (MeOH), whose dipole moment difference between the hydroxyl and methyl groups enables regulation of the anode-electrolyte interfacial chemistry by reconstructing the Helmholtz plane, thereby achieving stable AZIBs operation. MeOH modulates the Zn2+ solvation structure through competitive coordination with water, which reduces water polarization, enhances electrolyte stability, and increases entropy to increase low-temperature performance. In addition, selective adsorption and spatial hindrance by MeOH promote Zn deposition along the…
Citation impact
- FWCI
- 53.99
- Percentile
- 100%
- References
- 54
Authors
8- YBYiyang Bi
Changchun University of Science and Technology
- STSonglin Tian
Ministry of Education, Jilin Normal University
- YZYue Zhang
Changchun University of Science and Technology
- AHAkang Huang
Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, State Key Laboratory of Rare Earth Resources Utilization
- PKPushpendra Kumar
Jawaharlal Nehru University
Topics & keywords
- Helmholtz free energy
- Solvation
- Aqueous solution
- Dipole
- Electrolyte
- Adsorption
- Faraday efficiency
- Zinc
- Clean water and sanitation