In-situ Study of Solid-Liquid Interface Structure of Zinc-anode Battery by X-ray Total Reflection

X-ray reflectivity (XRR) was applied to in-situ measurements of the interface of liquid electrolytes and electrodes of rechargeable batteries. Here, we report the in-situ XRR measurements during the charge and discharge of the zinc-anode battery. The combination of physical and chemical polishing of...

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Bibliographic Details
Published in:E-journal of surface science and nanotechnology 2024/05/11, Vol.22(3), pp.261-265
Main Authors: Takabayashi, Yasuhiro, Yoshikawa, Takahiro, Fujii, Kairi, Kibino, Keisuke, Kimura, Koji, Fujinami, So, Hayashi, Koichi
Format: Article
Language:eng ; jpn
Subjects:
Chemical polishing
Discharge
Electrolyte-electrode interface
Electrolytes
Flat surfaces
In situ measurement
Liquid-solid interfaces
Rechargeable batteries
Reflectance
X ray reflection
X-ray reflectivity
Zinc
Zinc-anode battery
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Summary:X-ray reflectivity (XRR) was applied to in-situ measurements of the interface of liquid electrolytes and electrodes of rechargeable batteries. Here, we report the in-situ XRR measurements during the charge and discharge of the zinc-anode battery. The combination of physical and chemical polishing of the Zn plate gave a flat surface, enough to produce the total reflection. Changes in the reflectivity curves during discharge and charge indicated that the Zn density decreased during discharge and increased during charge. This suggests that the uneven structure grew by Zn dissolution and decreased by Zn precipitation. This uneven surface becomes the starting point for dendrite growth. Using this method will make it possible to evaluate what kind of electrolyte to use for a more uniform reaction, which is expected to lead to the development of batteries with good cycle characteristics.
ISSN:1348-0391
1348-0391
DOI:10.1380/ejssnt.2024-017