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http://hdl.handle.net/10397/95787
Title: | Elastomer–alginate interface for high-power and high-energy zn metal anodes | Authors: | Liu, Q Wang, Y Hong, X Zhou, R Hou, Z Zhang, B |
Issue Date: | May-2022 | Source: | Advanced energy materials, 26 May 2022, v. 12, no. 20, 2200318 | Abstract: | Spontaneous corrosion and uncontrolled dendrite accumulation of Zn rapidly degrades zinc–metal battery performance. Artificial interfaces have been widely fabricated on Zn metal anodes, yet most interfaces are detrimental to ion transfer and adapt poorly to spatial changes during Zn plating/stripping. Herein, a hybrid interface, consisting of a thermoplastic polyurethane (TPU) fiber matrix and Zn-alginate (ZA) filler, is designed, which serves as a physical barrier between anode and electrolyte to inhibit side reactions. Encouragingly, ZA regulates Zn2+ transport and endows uniform Zn deposition by inducing plating/stripping underneath the hybrid interface. At the same time, the TPU frame acts as a super-elastic constraint to further suppress rampant dendrite evolution and accommodate a large amount of deposited Zn. Consequently, the interface-protected Zn anode delivers high cycling stability (1200 h at 5 mA cm–2/5 mA h cm–2; 500 h at 10 mA cm–2/10 mA h cm–2), realizing an exceptional cumulative capacity of over 6000 mA h cm–2. This enhancement is well maintained in the full cell when coupled with a vanadium-based cathode. The unique matrix-filler architecture and mechanistic insights unraveled in this study are expected to provide a general principle in designing functional interfaces for metal anodes. | Keywords: | Corrosion Dendrites Elastomers Zinc–metal batteries Zn-alginate |
Publisher: | Wiley-VCH | Journal: | Advanced energy materials | ISSN: | 1614-6832 | EISSN: | 1614-6840 | DOI: | 10.1002/aenm.202200318 | Rights: | © 2022 Wiley-VCH GmbH This is the peer reviewed version of the following article: Liu, Q., Wang, Y., Hong, X., Zhou, R., Hou, Z., Zhang, B., Elastomer–Alginate Interface for High-Power and High-Energy Zn Metal Anodes. Adv. Energy Mater. 2022, 12, 2200318, which has been published in final form at https://doi.org/10.1002/aenm.202200318. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited. |
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Liu_Elastomer–Alginate_Interface_High-Power.pdf | Pre-Published version | 1.41 MB | Adobe PDF | View/Open |
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