Revealing the intrinsic connection between residual strain distribution and dissolution mode in Mg-Sc-Y-Ag anode for Mg-air battery
The dominated contradiction in optimizing the performance of magnesium-air battery anode lies in the difficulty of achieving a good balance between activation and passivation during discharge process. To further reconcile this contradiction, two Mg-0.1Sc-0.1Y-0.1Ag anodes with different residual str...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-03-01
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| Series: | Journal of Magnesium and Alloys |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956725000234 |
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| author | Wei-li Cheng Xu-bang Hao Jin-hui Wang Hui Yu Li-fei Wang Ze-qin Cui Cheng Chang |
| author_facet | Wei-li Cheng Xu-bang Hao Jin-hui Wang Hui Yu Li-fei Wang Ze-qin Cui Cheng Chang |
| author_sort | Wei-li Cheng |
| collection | DOAJ |
| description | The dominated contradiction in optimizing the performance of magnesium-air battery anode lies in the difficulty of achieving a good balance between activation and passivation during discharge process. To further reconcile this contradiction, two Mg-0.1Sc-0.1Y-0.1Ag anodes with different residual strain distribution through extrusion with/without annealing are fabricated. The results indicate that annealing can significantly lessen the “pseudo-anode” regions, thereby changing the dissolution mode of the matrix and achieving an effective dissolution during discharge. Additionally, p-type semiconductor characteristic of discharge product film could suppress the self-corrosion reaction without reducing the polarization of anode. The magnesium-air battery utilizing annealed Mg-0.1Sc-0.1Y-0.1Ag as anode achieves a synergistic improvement in specific capacity (1388.89 mA h g-1) and energy density (1960.42 mW h g-1). This anode modification method accelerates the advancement of high efficiency and long lifespan magnesium-air batteries, offering renewable and cost-effective energy solutions for electronics and emergency equipment. |
| format | Article |
| id | doaj-art-943df1cda9c8458e96ccad34015dcd8f |
| institution | DOAJ |
| issn | 2213-9567 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj-art-943df1cda9c8458e96ccad34015dcd8f2025-08-20T03:05:39ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672025-03-011331020103310.1016/j.jma.2025.01.006Revealing the intrinsic connection between residual strain distribution and dissolution mode in Mg-Sc-Y-Ag anode for Mg-air batteryWei-li Cheng0Xu-bang Hao1Jin-hui Wang2Hui Yu3Li-fei Wang4Ze-qin Cui5Cheng Chang6School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Salt Lake Chemical Engineering Research Complex, Qinghai University, Xining 810016, China; Corresponding author.School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaSalt Lake Chemical Engineering Research Complex, Qinghai University, Xining 810016, ChinaSchool of Materials Science and Engineering, Hebei University of Technology, Tianjin 300132, ChinaSchool of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaSchool of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaInstitute of New Materials, Guangdong Academy of Sciences, Guangdong-Hong Kong Joint Laboratory of Modern Surface Engineering Technology, Guangdong Provincial Key Laboratory of Modern Surface Engineering Technology, Guangzhou, Guangdong 510651, ChinaThe dominated contradiction in optimizing the performance of magnesium-air battery anode lies in the difficulty of achieving a good balance between activation and passivation during discharge process. To further reconcile this contradiction, two Mg-0.1Sc-0.1Y-0.1Ag anodes with different residual strain distribution through extrusion with/without annealing are fabricated. The results indicate that annealing can significantly lessen the “pseudo-anode” regions, thereby changing the dissolution mode of the matrix and achieving an effective dissolution during discharge. Additionally, p-type semiconductor characteristic of discharge product film could suppress the self-corrosion reaction without reducing the polarization of anode. The magnesium-air battery utilizing annealed Mg-0.1Sc-0.1Y-0.1Ag as anode achieves a synergistic improvement in specific capacity (1388.89 mA h g-1) and energy density (1960.42 mW h g-1). This anode modification method accelerates the advancement of high efficiency and long lifespan magnesium-air batteries, offering renewable and cost-effective energy solutions for electronics and emergency equipment.http://www.sciencedirect.com/science/article/pii/S2213956725000234Mg-air batteriesAnodeResidual strain distributionDissolution modeDischarge mechanism |
| spellingShingle | Wei-li Cheng Xu-bang Hao Jin-hui Wang Hui Yu Li-fei Wang Ze-qin Cui Cheng Chang Revealing the intrinsic connection between residual strain distribution and dissolution mode in Mg-Sc-Y-Ag anode for Mg-air battery Journal of Magnesium and Alloys Mg-air batteries Anode Residual strain distribution Dissolution mode Discharge mechanism |
| title | Revealing the intrinsic connection between residual strain distribution and dissolution mode in Mg-Sc-Y-Ag anode for Mg-air battery |
| title_full | Revealing the intrinsic connection between residual strain distribution and dissolution mode in Mg-Sc-Y-Ag anode for Mg-air battery |
| title_fullStr | Revealing the intrinsic connection between residual strain distribution and dissolution mode in Mg-Sc-Y-Ag anode for Mg-air battery |
| title_full_unstemmed | Revealing the intrinsic connection between residual strain distribution and dissolution mode in Mg-Sc-Y-Ag anode for Mg-air battery |
| title_short | Revealing the intrinsic connection between residual strain distribution and dissolution mode in Mg-Sc-Y-Ag anode for Mg-air battery |
| title_sort | revealing the intrinsic connection between residual strain distribution and dissolution mode in mg sc y ag anode for mg air battery |
| topic | Mg-air batteries Anode Residual strain distribution Dissolution mode Discharge mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2213956725000234 |
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