Journal
ADVANCED SCIENCE
Volume 7, Issue 21, Pages -Publisher
WILEY
DOI: 10.1002/advs.202002173
Keywords
ion modulation; zeolitic imidazolate frameworks; zinc dendrites anodes; Zn anodes; Zn-based batteries
Categories
Funding
- National Natural Science Foundation of China [21822509, U1810110, 21802173]
- Science and Technology Planning Project of Guangdong Province [2018A050506028]
- Natural Science Foundation of Guangdong Province [2018A030310301]
- National Supercomputing Center in Guangzhou (NSCC-GZ)
Ask authors/readers for more resources
Zinc (Zn) holds great promise as a desirable anode material for next-generation rechargeable batteries. However, the uncontrollable dendrite growth and low coulombic efficiency of the Zn plating/stripping process severely impede further practical applications of Zn-based batteries. Here, these roadblocks are removed by using in situ grown zeolitic imidazolate framework-8 (ZIF-8) as the ion modulation layer to tune the diffusion behavior of Zn(2+)ions on Zn anodes. The well-ordered nanochannels and N species of ZIF-8 can effectively homogenize Zn(2+)flux distribution and modulate the plating/stripping rate, ensuring uniform Zn deposition without dendrite growth. The Zn corrosion and hydrogen evolution are also alleviated by the insulating nature of ZIF-8, resulting in high coulombic efficiency. Therefore, the Zn@ZIF anode shows highly reversible, dendrite-free Zn plating/stripping behavior under a broad range of current densities, and a symmetric cell using this anode can work correctly up to 1200 h with a low polarization at 2 mA cm(-2). Moreover, this ultrastable Zn@ZIF anode also enables a full Zn ion battery with outstanding cyclic stability (10 000 cycles).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available