Interfacial engineering with BN@cellulose separator to suppress dendrite growth and side reactions in aqueous zinc-ion batteries
The lifespan of aqueous zinc-ion batteries, which are promising alternatives to Li-ion batteries, is affected by the irreversibility of Zn anodes, primarily caused by Zn dendrite growth and side reactions such as hydrogen evolution and corrosion during cycling. This study introduces a strategy to re...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
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| Series: | Electrochemistry Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248125000219 |
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| Summary: | The lifespan of aqueous zinc-ion batteries, which are promising alternatives to Li-ion batteries, is affected by the irreversibility of Zn anodes, primarily caused by Zn dendrite growth and side reactions such as hydrogen evolution and corrosion during cycling. This study introduces a strategy to regulate zinc ion flux between the Zn anode and aqueous electrolyte by coating boron nitride (BN) onto a cellulose separator using a simple doctor blade method. The resulting BN@cellulose separator effectively suppresses Zn dendrite growth and minimizes side reactions in aqueous electrolytes. Electrochemical evaluations demonstrate that the BN coating reduces interfacial corrosion and enhances electrochemical stability compared to a bare cellulose separator by regulating the zinc ion flux between the electrolyte and active Zn sites. Overall, use of the BN@cellulose separator improved the electrochemical performance and prolonged cycling stability. The proposed strategy marks a significant advancement toward enhancing the long-term reliability of aqueous zinc-ion batteries. |
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| ISSN: | 1388-2481 |