Dissolution of nanoprecipitate on aluminum-alloy anode for high discharging performance in Al battery applications
學年 111
學期 2
出版（發表）日期 2023-04-18
作品名稱 Dissolution of nanoprecipitate on aluminum-alloy anode for high discharging performance in Al battery applications
作品名稱（其他語言）
著者 Yung, Tung-yuan; Du, Chao-hung
單位
出版者
著錄名稱、卷期、頁數 Journal of Alloys and Compounds 954,　170211
摘要 Use of aluminum alloy anodes as metal fuel in electrochemical batteries has specific advantages in numerous applications. In this paper, we report novel Al alloy anodes obtained by adding In and Bi to a reported Al ternary-element alloy, Al-Zn-Sn. An electron probe microanalyzer is used to obtain the elemental composition of Al-5Zn-0.1Sn, Al-5Z-0.1Sn-0.1In, and Al-5Zn-0.1Sn-0.1In-0.1Bi. Tafel analysis, electrochemical impedance spectroscopy, and constant-current chronopotentiometry are performed for electrochemical analysis. In addition, the self-corrosion of the alloys is examined to determine the hydrogen evolution and anode discharge stability. These results indicate that Al-5Zn-0.1Sn-0.1In-0.1Bi has the highest anode performance. On the basis of the scanning electron microscopy and transmission electron microscopy microstructure analysis, we propose that the dissolution and sedimentation process induced by Bi nanoprecipitates may activate a passive Al surface, significantly enhancing the discharge efficiency.
關鍵字
語言 zh_TW
ISSN 1873-4669
期刊性質 國內
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 TWN
公開徵稿
出版型式 ,電子版
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