Fabrication of Sn-Ni alloy film anode for Li-ion batteries by electrochemical deposition

被引:20
作者
Zhang Da-wei [1 ,2 ,3 ]
Yang Chen-ge [2 ]
Dai Jun [2 ]
Wen Jian-wu [1 ]
Wang Long [1 ]
Chen Chun-hua [1 ]
机构
[1] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
[2] Hefei Univ Technol, Sch Chem Engn, Hefei 230009, Peoples R China
[3] Hefei Univ Technol, Anhui Key Lab Controllable Chem React & Mat Chem, Hefei 230009, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
electrochemical deposition; Li-ion battery; capacity retention; heat treatment; LITHIUM SECONDARY BATTERIES; ELECTRODES; CARBON; SYSTEM; OXIDE;
D O I
10.1016/S1003-6326(09)60057-1
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Sn-Ni alloy films for Li-ion batteries were fabricated by electrochemical deposition with rough copper foils as current collectors. The influence of electrochemical-deposition temperature and heat treatment were also investigated. By galvanostatic cell cycling the film anodes can deliver a steady specific capacity. The morphological changes cause the differences in capacity retention. After farther heat treatment, the film anodes present a better cycle performance, with a specific capacity of 3 14 mA.h/g after 100 cycles. This high capacity retention can be due to its smooth, compact surface formed in the heat treatment process.
引用
收藏
页码:1489 / 1493
页数:5
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