Design of dual-electrode interfacial kinetics regulator for long-lasting Ah-level zinc-iodine batteries
Central South University · Shenzhen Institutes of Advanced Technology · +4 more institutions
Abstract
Zinc-iodine (Zn-I 2 ) batteries hold great promise for large-scale applications, yet their practical deployment is constrained by uncontrollable iodine conversion, polyiodide shuttling, and unpredictable zinc (Zn) depositional morphology. Furthermore, the mismatched kinetics of its interfacial reactions demand significant attention. Herein, we introduce a betaine (Bet) additive as a dual-electrode interfacial regulator to synergistically address the challenges faced at both the anode and cathode interface. Specifically, the hydrophilic group (–COO) of Bet preferentially adsorbs on the Zn anode surface, modulating Zn 2+ solvation and electrodeposition dynamics to enable highly uniform Zn plating, extending the…
Citation impact
- FWCI
- 36.90
- Percentile
- 100%
- References
- 60
Authors
9Topics & keywords
- Zinc
- Regulator
- Electrode
- Kinetics
- Iodine
- Dual (grammatical number)
- Materials science
- Chemistry
- Affordable and clean energy