Inner-Sphere Electron Transfer Enabling Highly Reversible Mn 2+ /MnO 2 Conversion toward Energy-Dense Electrolytic Zinc–Manganese Batteries
Central South University · Division of Materials Science and Engineering · +4 more institutions
Abstract
High-voltage electrolytic Zn//MnO2 batteries show great potential for large-scale energy storage due to their affordability, eco-friendliness and high safety. However, their practical application is hindered by capacity losses due to incomplete MnO2 dissolution. Herein, we propose the strategy by coupling a 1,4-benzoquinone (1,4-BQ)/hydroquinone (HQ) redox mediator pair with in situ modulation of MnO2 electronic structure through electrolyte engineering to facilitate rapid and complete MnO2 dissolution. During the charging and discharging processes, Al3+ ions in the electrolyte enter MnO2 lattice by co-deposition and intercalation, respectively. The incorporated Al3+ ions effectively optimize the electronic…
Citation impact
- FWCI
- 26.85
- Percentile
- 100%
- References
- 45
Authors
9- WFWeijie Fan
Central South University, Division of Materials Science and Engineering
- STSiyu Tian
Central South University, Division of Materials Science and Engineering
- LQLiping Qin
Guangxi University of Science and Technology
- TSTaghrid S. Alomar
Princess Nourah bint Abdulrahman University
- PRPengchao Ruan
Central South University, Division of Materials Science and Engineering
Topics & keywords
- Chemistry
- Manganese
- Zinc
- Electron transfer
- Electrolyte
- Inorganic chemistry
- Electrode
- Physical chemistry
- Affordable and clean energy