气候变化领域集成服务门户(CCPortal): Act in contravention: a non-planar coupled electrode design utilizing “tip effect” for ultra-high areal capacity, long cycle life zinc-based batteries

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DOI	10.1016/j.scib.2020.12.029
	Act in contravention: a non-planar coupled electrode design utilizing “tip effect” for ultra-high areal capacity, long cycle life zinc-based batteries
	Wang S.; Yuan C.; Chang N.; Song Y.; Zhang H.; Yin Y.; Li X.
发表日期	2021
ISSN	20959273
英文摘要	Aqueous zinc-based batteries (ZBBs) have great potential as commercial energy storage devices. However, the poor cycling stability of zinc anode under high areal capacity limits their further application. Herein, a coupled non-planar electrode design achieved by the tailored flat-top pyramid carbon felt (TCF) is proposed for ZBBs, which can effectively increase the zinc deposition sites, adjust the deposition morphology, optimize the current and electrolyte flow velocity distribution and provide necessary space for zinc plating. Interestingly, by utilizing “tip effect”, the coupled TCFs enable precise control of the zinc dendrite growth position, effectively reducing the risk of short circuit. Based on such coupled TCFs, zinc-iodine flow batteries can deliver an ultra-high areal capacity of 240 mAh cm−2 and a superb cycling stability over 300 cycles (areal capacity of 160 mAh cm−2) at a high current density of 40 mA cm−2. Therefore, we provide an effective strategy for high areal capacity zinc anode design, which may promote the development of high energy density and long cycle life ZBBs. © 2020 Science China Press
关键词	High areal capacity Tip effect Zinc deposition Zinc-based batteries
英文关键词	Anodes; Charging (batteries); Deposition; Electrolytes; Energy storage; Flow velocity; Commercial energy; Cycling stability; Deposition morphology; Electrode design; Electrolyte flows; High current densities; High energy densities; Planar electrode; Secondary batteries
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207597
作者单位	Division of Energy Storage, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Wang S.,Yuan C.,Chang N.,等. Act in contravention: a non-planar coupled electrode design utilizing “tip effect” for ultra-high areal capacity, long cycle life zinc-based batteries[J],2021.
APA	Wang S..,Yuan C..,Chang N..,Song Y..,Zhang H..,...&Li X..(2021).Act in contravention: a non-planar coupled electrode design utilizing “tip effect” for ultra-high areal capacity, long cycle life zinc-based batteries.Science Bulletin.
MLA	Wang S.,et al."Act in contravention: a non-planar coupled electrode design utilizing “tip effect” for ultra-high areal capacity, long cycle life zinc-based batteries".Science Bulletin (2021).