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  • 标题:A Dendrite-Resistant Zinc-Air Battery
  • 本地全文:下载
  • 作者:Shangwei Huang ; Hui Li ; Pucheng Pei
  • 期刊名称:iScience
  • 印刷版ISSN:2589-0042
  • 出版年度:2020
  • 卷号:23
  • 期号:6
  • 页码:1-31
  • DOI:10.1016/j.isci.2020.101169
  • 语种:English
  • 出版社:Elsevier
  • 摘要:SummaryZinc-air batteries (ZABs) have drawn widespread attention for their high energy densities, abundant raw materials, and low cost. However, the issues of metal dendrite formation and air electrode failure have been impeding the development and application of ZABs. Herein, we designed a novel dendrite-resistant ZAB system by adopting multiphase electrolytes to conduct the zinc deposition and the oxygen evolution reaction. The oxygen reduction reaction electrode is kept out of the zinc deposition region to extend the lifespan. The ZABs show an energy density of 1,050.9 Wh kg−1based on the mass of zinc consumption, with an average Coulombic efficiency of ∼97.4% in 2,000 h discharge and charge cycling. More impressively, even if a short circuit occurs while charging, the battery can maintain the cycle performance without irreversible failure, which is conducive to the reliability of battery modules and its application in other energy storage/conversion devices.Graphical AbstractDisplay OmittedHighlights•The ZAB displays an ultralong cycle life (10,000 cycles) at high current density•The ZAB shows high energy densities and an average Coulombic efficiency of ∼97.4%•Our ZABs compose energy storage module showing the peak power density of 280.8 mW cm−2•The ZAB has excellent cycle performance, and it can be recovered in time of short circuitElectrochemistry; Energy Storage; Energy Materials
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