Electrochemical Performance of Al-Zn-In-Mg-Ga-Mn Alloys as Anodes for Al-Air Batteries

被引：0

作者：

Wu H. ^{[1
,2
]}

Duan T. ^{[2
]}

Ma L. ^{[2
]}

Shao G. ^{[1
]}

Zhang H. ^{[2
]}

机构：

[1] State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan

[2] National State Key Laboratory for Marine Corrision and Protection, Luoyang Ship Material Research Institute, Qingdao

来源：

Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research | 2024年 / 38卷 / 04期

关键词：

Al-Zn-In-Mg-Ga-Mn alloy; aluminum-air battery; corrosion behavior; electrochemical performance; metallic materials;

D O I：

10.11901/1005.3093.2023.256

中图分类号：

学科分类号：

摘要：

The free corrosion behavior and electrochemical properties of Al-Zn-In-Mg-Ga-Mn alloys, as anodes working with 2 mol/L NaCl and 4 mol/L KOH electrolytes were studied. Results revealed that in the two electrolytes, the corrosion potential (Ecorr) of alloy anodes shifted negatively by 0.041 V and 0.018 V, and the free corrosion rates decreased by 0.2146 and 15.1 mg·cm-2·h-1, respectively in the contrast to those of pure Al anode. The electrochemical activity of pure Al anode was improved, while its free corrosion behavior was inhibited. In the 2 mol/L NaCl electrolyte, the discharge capacity peak of the alloy anode reached 2608.96 Ah·kg-1, which was 55.59% higher than that of the pure Al anode. The highest energy density attained 1742.61 Wh·kg-1, being 274.58% superior to that of the pure Al anode. The anode efficiency was 87.55%. In the 4 mol/L KOH electrolyte, the highest discharge capacity of the Al-Zn-In-Mg-Ga-Mn alloy anode was 1605.15 Ah·kg-1, which was 131.27% higher than that of the pure Al anode. The highest energy density was 1404.83 Wh·kg-1, which was 231.52% higher than that of the pure Al anode. The anode efficiency was 53.86%. © 2024 Chinese Journal of Materials Research. All rights reserved.

引用

页码：257 / 268

页数：11

共 48 条

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