共 24 条
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.
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页码:1489 / 1493
页数:5
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