DOI: 10.1016/j.scib.2020.12.029
论文题名: Act in contravention: a non-planar coupled electrode design utilizing “tip effect” for ultra-high areal capacity, long cycle life zinc-based batteries
作者: Wang S. ; Yuan C. ; Chang N. ; Song Y. ; Zhang H. ; Yin Y. ; Li X.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2021
语种: 英语
中文关键词: 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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170431
Appears in Collections: 气候变化与战略
There are no files associated with this item.
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
Recommended Citation:
Wang S.,Yuan C.,Chang N.,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[J]. Science Bulletin,2021-01-01