Highly reversible zinc metal anode enabled by strong Brønsted acid and hydrophobic interfacial chemistry
University of Science and Technology of China · Hefei National Center for Physical Sciences at Nanoscale
Abstract
Abstract Uncontrollable zinc (Zn) plating and hydrogen evolution greatly undermine Zn anode reversibility. Previous electrolyte designs focus on suppressing H 2 O reactivity, however, the accumulation of alkaline byproducts during battery calendar aging and cycling still deteriorates the battery performance. Here, we present a direct strategy to tackle such problems using a strong Brønsted acid, bis(trifluoromethanesulfonyl)imide (HTFSI), as the electrolyte additive. This approach reformulates battery interfacial chemistry on both electrodes, suppresses continuous corrosion reactions and promotes uniform Zn deposition. The enrichment of hydrophobic TFSI – anions at the Zn|electrolyte interface creates an H 2…
Citation impact
- FWCI
- 23.51
- Percentile
- 100%
- References
- 51
Authors
14- QNQingshun NianCorresponding
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
- XLXuan Luo
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
- DRDigen Ruan
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
- YLYecheng Li
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
- BXBingqing Xiong
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
Topics & keywords
- Zinc
- Metal
- Anode
- Chemistry
- Brønsted–Lowry acid–base theory
- Chemical engineering
- Nanotechnology
- Materials science
- Affordable and clean energy