锂离子电池Sn-Co-Zn合金负极材料电沉积及其储锂性能
运用电沉积技术制备出Sn-Co-Zn合金电极材料.采用X射线衍射（XRD）和扫描电子显微镜（SEM）分析了该合金材料的相结构和表面形貌.通过循环伏安和电位阶跃实验研究了Sn-Co-Zn合金的电沉积机理,实验表明,Sn-Co-Zn合金电沉积按扩散控制连续成核和三维生长方式进行.XRD结果表明,该合金由CoSn3、Co3Sn2和Zn组成.电化学性能测试表明：Sn-Co-Zn合金电极首次放电（脱锂）容量达751mAh·g^-1,首次循环的库仑效率为88%;30周循环之后放电容量为510mAh·g^-1.该Sn-Co-Zn合金电极良好的电化学储锂性能可能归因于材料的多相结构....
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| Published in | Wuli huaxue xuebao Vol. 26; no. 3; pp. 561 - 566 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
厦门大学化学化工学院化学系,固体表面物理化学国家重点实验室,福建,厦门,361005
2010
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-6818 |
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| Abstract | 运用电沉积技术制备出Sn-Co-Zn合金电极材料.采用X射线衍射（XRD）和扫描电子显微镜（SEM）分析了该合金材料的相结构和表面形貌.通过循环伏安和电位阶跃实验研究了Sn-Co-Zn合金的电沉积机理,实验表明,Sn-Co-Zn合金电沉积按扩散控制连续成核和三维生长方式进行.XRD结果表明,该合金由CoSn3、Co3Sn2和Zn组成.电化学性能测试表明：Sn-Co-Zn合金电极首次放电（脱锂）容量达751mAh·g^-1,首次循环的库仑效率为88%;30周循环之后放电容量为510mAh·g^-1.该Sn-Co-Zn合金电极良好的电化学储锂性能可能归因于材料的多相结构. |
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| AbstractList | O646; 运用电沉积技术制备出Sn-Co-Zn合金电极材料.采用X射线衍射(XRD)和扫描电子显微镜(SEM)分析了该合金材料的相结构和表面形貌.通过循环伏安和电位阶跃实验研究了Sn-Co-Zn合金的电沉积机理,实验表明,Sn-Co-Zn合金电沉积按扩散控制连续成核和三维生长方式进行.XRD结果表明,该合金由CoSn_3、Co_3Sn_2和Zn组成.电化学性能测试表明:Sn-Co-Zn合金电极首次放电(脱锂)容量达751 mAh·g~(-1),首次循环的库仑效率为88%;30周循环之后放电容量为510 mAh·g~(-1).该Sn-Co-Zn合金电极良好的电化学储锂性能可能归凶于材料的多相结构. 运用电沉积技术制备出Sn-Co-Zn合金电极材料.采用X射线衍射（XRD）和扫描电子显微镜（SEM）分析了该合金材料的相结构和表面形貌.通过循环伏安和电位阶跃实验研究了Sn-Co-Zn合金的电沉积机理,实验表明,Sn-Co-Zn合金电沉积按扩散控制连续成核和三维生长方式进行.XRD结果表明,该合金由CoSn3、Co3Sn2和Zn组成.电化学性能测试表明：Sn-Co-Zn合金电极首次放电（脱锂）容量达751mAh·g^-1,首次循环的库仑效率为88%;30周循环之后放电容量为510mAh·g^-1.该Sn-Co-Zn合金电极良好的电化学储锂性能可能归因于材料的多相结构. |
| Abstract_FL | A ternary Sn-Co-Zn alloy film was successfully prepared by electrodepositi on copper foil. Electrochemical deposition of the Sn-Co-Zn alloy was studied by cyclic voltammetry (CV) and chronoamperometry (CA). The structure and electrochemical performance of the electroplated Sn-Co-Zn alloy electrodes were also investigated in detail. The CV and CA results revealed that the initial deposition kinetics of the Sn-Co-Zn alloy corresponds to a model that includes a three-dimensional progressive nucleation and diffusion controlled growth. XRD results showed that the electrodeposited Sn-Co-Zn alloy consists of CoSn_3, Co_3Sn_2, and Zn phase. Electrochemical tests indicated that at the first cycle, the discharge capacity (desertion) and columbic efficiency are measured 751 mAh ·g~(-1) and 88%, respectively, at the 30th cycle, the Sn-Co-Zn alloy electrodes still delivered a discharge capacity of 510 mAh ·-g~(-1). The good lithium storage performance of the Sn-Co-Zn electrode is ascribed to multi-phase structure of the electrode. |
| Author | 常玉清 黄令 孙世刚 |
| AuthorAffiliation | 厦门大学化学化工学院化学系,固体表面物理化学国家重点实验室,福建厦门361005 |
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| Author_FL | SUN Shi-Gang CHANG Yu-Qing HUANG Ling |
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| DocumentTitleAlternate | Electrodeposition and Electrochemical Properties of Ternary Sn-Co-Zn Alloy Electrodes as Anodes for Lithium-Ion Batteries |
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| Keywords | Lithium-ion battery 负极 电化学成核与生长 Anode 锂离子电池 Electrodeposition Sn-Co-Zn alloy electrode Electrochemical nucleation and growth Zn-Co-Zn合金电极 电沉积 |
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| SubjectTerms | Sn-Co-Zn合金电极 电化学成核与生长 电沉积 负极 锂离子电池 |
| Title | 锂离子电池Sn-Co-Zn合金负极材料电沉积及其储锂性能 |
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