Enabling Stable Zn Anode with PVDF/CNTs Nanocomposites Protective Layer Toward High‐Performance Aqueous Zinc‐Ion Batteries
In: Advanced Functional Materials ; ISSN 1616-301X 1616-3028, 2024
academicJournal
Zugriff:
Due to its abundance of natural resources, high theoretical capacity, and suitable redox potential (−0.76 V vs SHE), Zn anode has received extensive attention both from academy and industry. However, the coexistence of Zn and H 2 O, which is unfortunately thermodynamically unstable, always involves severe metal corrosion, H 2 evolution, dendrite growth, resulting in low reversibility of Zn anode. Herein, a phase transfer method is adapted to design a porous conductive protective layer on the Zn anode, denoted as (PVDF (Polyvinylidene fluoride)/CNTs(Carbon Nanotubes)‐PT(phase transfer) @ Zn). Based on in situ characterization, COMSOL simulation, and migration energy barrier calculation, it can be demonstrated that PVDF/CNTs‐PT @ Zn effectively inhibited the production of Zn dendrites and the side reactions triggered by H 2 O, achieving uniform deposition. Especially, the full picture of Zn deposition is observed using in situ computed tomography (CT). The symmetrical cell using the PVDF/CNTs‐PT @ Zn demonstrates dendrite‐free plating/stripping and possesses much better cycle stability than the bare Zn. A stable rechargeable full battery is demoed through coupling the PVDF/CNTs‐PT @ Zn anode with commercial V 2 O 5 . The strategy showcases a feasible pathway to inhibit Zn dendrite and side reactions in aqueous Zn ion battery, opening a promising avenue for the construction of metal anode protection layer.
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Enabling Stable Zn Anode with PVDF/CNTs Nanocomposites Protective Layer Toward High‐Performance Aqueous Zinc‐Ion Batteries
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Autor/in / Beteiligte Person: | Wang, Jinchang ; Peng, Jingsong ; Huang, Weifeng ; Liang, Hanqin ; Hao, Yida ; Li, Jiefei ; Chu, Haibin ; Wei, Hang ; Zhang, Yuanyuan ; Liu, Jian ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation |
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Zeitschrift: | Advanced Functional Materials ; ISSN 1616-301X 1616-3028, 2024 |
Veröffentlichung: | Wiley, 2024 |
Medientyp: | academicJournal |
DOI: | 10.1002/adfm.202316083 |
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