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- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received April 8, 2024
Accepted May 8, 2024
Available online June 25, 2025
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Carbon Nanotube–Polymer Composite Coating on the Anode Surface for Enhancing the Performance of Zn-Ion Batteries
https://doi.org/10.1007/s11814-024-00190-6
Abstract
Despite their outstanding safety, longevity, environmental friendliness, and high energy storage capabilities, the deterioration
and damage of the Zn anode of Zn-ion batteries (ZIBs), their inadequate wettability, and a lack of suffi cient nucleation
points for Zn plating have hindered the further development of ZIBs. Thus, research eff orts are focused on improving safety
by coating Zn anodes with protective materials, such as carbon, ceramics, or polymers. This study coated the surface of Zn
anode with a protective composite consisting of poly(vinylidene fl uoride) (PVDF) and carbon nanotubes (CNTs) to protect
it and improve its electrochemical performance. The PVDF coating functioned as an eff ective barrier against Zn dissolution
and corrosion, while the CNTs enriched the anode with abundant sites for Zn deposition and signifi cantly diminished the
surface resistance of the electrode. The ZIB fabricated using the coated Zn anode exhibited an enhanced specifi c capacity
of 253 mA h g –1 at 0.3 A g –1 , maintaining a specifi c capacity of 91 mA h g –1 over 500 cycles at 0.5 A g –1 . The results suggest
that employing a composite protective layer made of PVDF and CNT is a promising method for enhancing the energy
storage potential of ZIBs.
