Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 13, Issue 46, Pages 54990-54996Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c15794
Keywords
MOF; 3D; zinc foam; anode; zinc-ion batteries
Funding
- MOST [2016YFA0202500]
- NSFC [51871123]
- MOE [IRT13R30]
- 111 Project [B12015]
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Rechargeable aqueous zinc-ion batteries with a dual porous Zn-3D@600 anode exhibit excellent cycle stability and superlative rate performance, delivering a discharge capacity of 198.8 mAh g(-1) after 1000 cycles at 1 A g(-1). This is attributed to the Zn@C protective layer regulating uniform Zn nucleation and the 3D zinc skeleton accommodating Zn deposition at a high current density.
Rechargeable aqueous zinc-ion batteries (ZIBs) have been proven to be an alternative energy storage system because of their high safety, low cost, and eco-friendliness. However, the poor stability of metallic Zn anodes suffering from uncontrolled dendrite formation and electrochemical corrosion has brought troublesome hindrances for their practical application. In this work, we report a dual porous Zn-3D@600 anode prepared by coating a Zn@C protective layer on a 3D zinc skeleton. The Zn-3D@600 anode exhibits a highly stable and low polarization voltage during the Zn plating/stripping process and possesses a smooth and dendrite-free interface after long-term cycling. Moreover, the assembled Zn-3D@600 cell shows excellent cycle stability and superlative rate performance, delivering a discharge capacity of 198.8 mAh g(-1) after 1000 cycles at 1 A g(-1). Such excellent electrochemical performance can be credited to the Zn@C protective layer regulating uniform Zn nucleation and the 3D zinc skeleton accommodating Zn deposition at a high current density.
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