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Liu, Meilin
Liu Research Group
Research Interests
  • Fuel Cells

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Three-dimensional porous copper-tin alloy electrodes for rechargeable lithium batteries

Cited 176 times inthomson ciCited 160 times inthomson ci
Title
Three-dimensional porous copper-tin alloy electrodes for rechargeable lithium batteries
Author
Shin, HeoncheolLiu, Meilin
Keywords
LI-ION BATTERIES; X-RAY-DIFFRACTION; NEGATIVE ELECTRODES; INSERTION ELECTRODE; ANODES; ETA'-CU6SN5; COMPOSITES; ETA-CU6SN5; FILM
Issue Date
200504
Publisher
WILEY-V C H VERLAG GMBH
Citation
ADVANCED FUNCTIONAL MATERIALS, v.15, no.4, pp.582 - 586
Abstract
Three-dimensional (3D) foam structure of a Cu 6Sn 5 alloy was fabricated via an electrochemical deposition process. The walls of the foam structure are highly porous and consist of numerous small grains. When used as a negative electrode for a rechargeable lithium battery, the Cu 6Sn 5 samples delivered a reversible capacity of about 400 mA hg -1 up to 30 cycles. Further, these materials exhibit superior rate capability, attributed primarily to the unique porous structure and the large surface area for fast mass transport and rapid surface reactions. For instance, at a current drain of 10 mA cm -2 (20C rate), the obtainable capacity (220 mA hg -1) was more than 50 % of the capacity at 0.5 mA cm -2 (1C rate).
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DOI
http://dx.doi.org/10.1002/adfm.200305165
ISSN
1616-301X
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