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- W3185536787 abstract "With the burgeoning energy consumption, the rechargeable zinc-air battery has attracted the worldwide attention owing to its intrinsic safety, low material cost and high theoretical specific energy density [1]. For its practical application, the degradation of air electrode made of carbon is necessary to be systematically explained for developing applicable electrode with long cycle life. Recent progresses in high-precision methods for surface analysis allow us to approach to mechanistic understanding of the electrode degradation, while normal ex-situ measurements require the rinsing and other processing which might be destructive. Hereby in this work, in-situ Raman measurements are carried out to observe the changes in chemical states of the carbon electrode in the zinc-air battery during the charging and discharging processes. Unlike other commercial air electrode with multi-component catalysts, the air electrode used for this study is the specially prepared carbon electrode with only Co3O4 particles to facilitate the Raman measurements. For the charging and discharging processes, the electrolyte of 8 M KOH solution with saturated ZnO as well as the current density of 20 mA/cm2 are applied, following the standard of zinc-air battery. Moreover, a three-electrode cell with Pt wire as the counting electrode and Hg/HgO as the reference electrode is utilized. In particular, a homemade setup is developed for the electrode so that the Raman spectra of both gas diffusion layer and catalytic layer can be easily detected from the cross-sectional view." @default.
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- W3185536787 date "2021-05-30" @default.
- W3185536787 modified "2023-10-16" @default.
- W3185536787 title "The Degradation of Carbon Electrode for Rechargeable Zinc-Air Battery at an Initial State of Cycling Revealed By in-Situ Raman Measurement" @default.
- W3185536787 doi "https://doi.org/10.1149/ma2021-01131mtgabs" @default.
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