气候变化领域集成服务门户(CCPortal): Ultra-long-life and highly reversible Zn metal anodes enabled by a desolvation and deanionization interface layer

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DOI	10.1039/d0ee03898a
	Ultra-long-life and highly reversible Zn metal anodes enabled by a desolvation and deanionization interface layer
	Zhang X.; Li J.; Liu D.; Liu M.; Zhou T.; Qi K.; Shi L.; Zhu Y.; Qian Y.
发表日期	2021
ISSN	17545692
起始页码	3120
结束页码	3129
卷号	14 期号:5
英文摘要	The zinc metal anode in aqueous zinc-ion batteries (AZIBs) is considerably impeded by uncontrollable dendrite growth and intricately water-induced corrosion, leading to low Coulombic efficiency (CE) and limited lifespan. Herein, a bifunctional cellulose nanowhisker-graphene (CNG) membrane was constructed to mitigate these problems. Experimental analysis and molecular dynamics simulation reveal that the CNG membrane, functioning as a desolvation layer to preclude H2O molecules encountering the Zn anode, retards the water-induced corrosion reaction. This CNG layer with negative surface charges can simultaneously generate a deanionization shock by spreading cations but screening anions to obtain redirected Zn deposition parallel to the (0002)Zn plane. Furthermore, the flexible and toughened CNG membrane could withstand a strong tensile force (8.54 N) and a great puncture force (0.10 N) to favorably accommodate the Zn anode surface fluctuation during plating/stripping. Accordingly, CNG/Zn anode delivers an enhanced CE (99.4%) and a longer cycle life (~5500 h), over 27 times that of a bare Zn anode. A full MnO2/graphene-CNG/Zn battery exhibits a high discharge capacity (307 mA h g-1) and maintains a high capacity retention of 87.8% at 5C after 5000 cycles. © 2021 The Royal Society of Chemistry.
英文关键词	Anodes; Corrosion; Manganese oxide; Molecular dynamics; Reaction kinetics; Secondary batteries; Cellulose nanowhiskers; Corrosion reaction; Coulombic efficiency; Discharge capacities; Experimental analysis; Interface layer; Molecular dynamics simulations; Negative surface charges; Zinc; calcification; cation; cellulose; detection method; electrode; experimental study; fuel cell; membrane; simulation; Anodes; Capacity; Corrosion; Life; Reaction Kinetics; Surfaces; Water; Zinc
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190674
作者单位	Department of Applied Chemistry, University of Science and Technology of China, Hefei, 230026, China; School of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China; Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China; Department of Chemistry and National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
推荐引用方式 GB/T 7714	Zhang X.,Li J.,Liu D.,et al. Ultra-long-life and highly reversible Zn metal anodes enabled by a desolvation and deanionization interface layer[J],2021,14(5).
APA	Zhang X..,Li J..,Liu D..,Liu M..,Zhou T..,...&Qian Y..(2021).Ultra-long-life and highly reversible Zn metal anodes enabled by a desolvation and deanionization interface layer.Energy & Environmental Science,14(5).
MLA	Zhang X.,et al."Ultra-long-life and highly reversible Zn metal anodes enabled by a desolvation and deanionization interface layer".Energy & Environmental Science 14.5(2021).