Effect of Si Addition on Mechanical and Electrochemical Properties of Al-Fe-Cu-La Alloy for Current Collector of Lithium Battery
The increasing demand for high-performance current collectors of lithium ion secondary batteries requires that the employed aluminum alloys have better mechanical properties and superior electrochemical performance. The effect of Si addition on the microstructure, tensile and electrochemical perform...
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MDPI AG
2019-10-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/9/10/1072 |
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| author | Yawu Xu Dongyan Ding Xin Yang Wenlong Zhang Yongjin Gao Zhanlin Wu Guozhen Chen Renzong Chen Yuanwei Huang Jinsong Tang |
| author_facet | Yawu Xu Dongyan Ding Xin Yang Wenlong Zhang Yongjin Gao Zhanlin Wu Guozhen Chen Renzong Chen Yuanwei Huang Jinsong Tang |
| author_sort | Yawu Xu |
| collection | DOAJ |
| description | The increasing demand for high-performance current collectors of lithium ion secondary batteries requires that the employed aluminum alloys have better mechanical properties and superior electrochemical performance. The effect of Si addition on the microstructure, tensile and electrochemical performance of Al-Fe-Cu-La alloy was investigated by optical microscopy, X-ray diffraction, scanning electron microscopy, a tensile test, conductivity test and Tafel polarization curve test. Experimental results indicated that Si addition to the Al-Fe-Cu-La alloy helped to refine the longitudinal grain size of the alloy. The Si-containing phase (AlFeSi) nucleated and grew along the surface of the AlFeLa phase. The Si addition to the Al-Fe-Cu-La alloy could greatly increase the tensile strength in the temperature range of −20 °C to 50 °C and improve high temperature stability of the alloy. Also, the addition of Si promoted the formation of the AlFeSi ternary phase, which helped to improve the corrosion resistance of the alloy. |
| first_indexed | 2024-12-20T06:08:21Z |
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| id | doaj.art-128378370eb44893b2a357e4255e2dc0 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-12-20T06:08:21Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj.art-128378370eb44893b2a357e4255e2dc02022-12-21T19:50:45ZengMDPI AGMetals2075-47012019-10-01910107210.3390/met9101072met9101072Effect of Si Addition on Mechanical and Electrochemical Properties of Al-Fe-Cu-La Alloy for Current Collector of Lithium BatteryYawu Xu0Dongyan Ding1Xin Yang2Wenlong Zhang3Yongjin Gao4Zhanlin Wu5Guozhen Chen6Renzong Chen7Yuanwei Huang8Jinsong Tang9School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaHuafon NLM Al Co., Ltd., Shanghai 201506, ChinaHuafon NLM Al Co., Ltd., Shanghai 201506, ChinaHuafon NLM Al Co., Ltd., Shanghai 201506, ChinaShanghai Huafon Materials Technology Institute, Shanghai 201203, ChinaShanghai Huafon Materials Technology Institute, Shanghai 201203, ChinaShanghai Huafon Materials Technology Institute, Shanghai 201203, ChinaThe increasing demand for high-performance current collectors of lithium ion secondary batteries requires that the employed aluminum alloys have better mechanical properties and superior electrochemical performance. The effect of Si addition on the microstructure, tensile and electrochemical performance of Al-Fe-Cu-La alloy was investigated by optical microscopy, X-ray diffraction, scanning electron microscopy, a tensile test, conductivity test and Tafel polarization curve test. Experimental results indicated that Si addition to the Al-Fe-Cu-La alloy helped to refine the longitudinal grain size of the alloy. The Si-containing phase (AlFeSi) nucleated and grew along the surface of the AlFeLa phase. The Si addition to the Al-Fe-Cu-La alloy could greatly increase the tensile strength in the temperature range of −20 °C to 50 °C and improve high temperature stability of the alloy. Also, the addition of Si promoted the formation of the AlFeSi ternary phase, which helped to improve the corrosion resistance of the alloy.https://www.mdpi.com/2075-4701/9/10/1072al-fe-cu-la alloysi additionmicrostructuremechanical propertiescorrosion behavior |
| spellingShingle | Yawu Xu Dongyan Ding Xin Yang Wenlong Zhang Yongjin Gao Zhanlin Wu Guozhen Chen Renzong Chen Yuanwei Huang Jinsong Tang Effect of Si Addition on Mechanical and Electrochemical Properties of Al-Fe-Cu-La Alloy for Current Collector of Lithium Battery Metals al-fe-cu-la alloy si addition microstructure mechanical properties corrosion behavior |
| title | Effect of Si Addition on Mechanical and Electrochemical Properties of Al-Fe-Cu-La Alloy for Current Collector of Lithium Battery |
| title_full | Effect of Si Addition on Mechanical and Electrochemical Properties of Al-Fe-Cu-La Alloy for Current Collector of Lithium Battery |
| title_fullStr | Effect of Si Addition on Mechanical and Electrochemical Properties of Al-Fe-Cu-La Alloy for Current Collector of Lithium Battery |
| title_full_unstemmed | Effect of Si Addition on Mechanical and Electrochemical Properties of Al-Fe-Cu-La Alloy for Current Collector of Lithium Battery |
| title_short | Effect of Si Addition on Mechanical and Electrochemical Properties of Al-Fe-Cu-La Alloy for Current Collector of Lithium Battery |
| title_sort | effect of si addition on mechanical and electrochemical properties of al fe cu la alloy for current collector of lithium battery |
| topic | al-fe-cu-la alloy si addition microstructure mechanical properties corrosion behavior |
| url | https://www.mdpi.com/2075-4701/9/10/1072 |
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