Anion‐Trap Engineering toward Remarkable Crystallographic Reorientation and Efficient Cation Migration of Zn Ion Batteries
Jinan University · City University of Hong Kong
Abstract
Abstract Zn batteries are considered as potential candidates in future power sources, however suffer problems of rampant dendrite/by‐product on Zn anodes, torpid Zn 2+ transfer/diffusion and poor energy density. Inspired by the host‐guest interaction chemistry, an anion‐trap agent β‐cyclodextrin (β‐CD) is introduced into the Zn(ClO 4 ) 2 electrolyte to induce dominant Zn (002) deposition and improve Zn 2+ migration behaviors. The anion ClO 4 − is revealed to be trapped inside the cavity of β‐CD, impairing barriers for Zn 2+ migration and significantly elevating the Zn 2+ transference number to 0.878. Meanwhile, the β‐CD@ClO 4 − complex shows the function in preferential growth of the Zn (002), blocking the…
Citation impact
- FWCI
- 29.08
- Percentile
- 100%
- References
- 47
Authors
6Topics & keywords
- Electrolyte
- Ion
- Anode
- Zinc
- Chemistry
- Diffusion
- Dendrite (mathematics)
- Inorganic chemistry