4.7 Article

β-FeOOH: a new anode for potassium-ion batteries

Journal

CHEMICAL COMMUNICATIONS
Volume 56, Issue 26, Pages 3713-3716

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc01009j

Keywords

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Funding

  1. National Natural Science Foundation of China [51932011, 51972346, 51802356, 51872334]
  2. Innovation-Driven Project of Central South University [2020CX024]
  3. Hunan Provincial Innovation Foundation for Postgraduate [CX2017B045]

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Potassium-ion batteries (PIBs) hold great potential in large-scale energy storage systems. Here, beta-FeOOH is employed as an anode for PIBs, exhibiting high capacity and good cycling stability. The study of potassium storage mechanism discloses that beta-FeOOH turns into an amorphous structure in the first discharge process, and remains stable in the amorphous state in the subsequent cycles.

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