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| A comparative study on the performances of thin film and granular tin as Li ion insertion electrodes prepared by electrodeposition |
| Chang-Ming LI;;;; |
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Cite this article:
Chang-Ming LI. A comparative study on the performances of thin film and granular tin as Li ion insertion electrodes prepared by electrodeposition. Acta Metall Sin, 2007, 43(5): 515-520 .
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Abstract Thin film and granular tin electrodes as negative materials for lithium-ion batteries were prepared by electrodeposition onto copper foil collector. Their performances were studied with X-ray diffraction(XRD), scanning electron microscopy (SEM), cyclic voltammetry and charging-discharge experiments. The granular tin electrode and the film tin electrode can be prepared in fluoborate solution containing additives under stirred and unstirred condition, respectively. The thin film tin electrode shows its better discharge capacity and cyclic stability than the granular tin electrode: the discharge capacity of the film tin electrode is 787mAh/g for the first cycle and keeps 630 mAh/g after 40 cycles; but that of the granular tin electrode is only 576 mAh/g for the first cycle and keeps only 150mAh/g after 20 cycles.
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Received: 01 September 2006
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