https://scholars.lib.ntu.edu.tw/handle/123456789/409023
標題: | A study on the interior microstructures of working Sn particle electrode of Li-ion batteries by in situ X-ray transmission microscopy | 作者: | Chao S.-C. Yen Y.-C. Song Y.-F. Chen Y.-M. Wu H.-C. Wu N.-L. |
關鍵字: | Alloying anode;Li-ion battery;Tin;Transmission X-ray microscopy | 公開日期: | 2010 | 卷: | 12 | 期: | 2 | 起(迄)頁: | 234-237 | 來源出版物: | Electrochemistry Communications | 摘要: | The interior microstructures of Sn particles developed during electrochemical lithiation/de-lithiation have been revealed by in situ X-ray transmission microscopy (TXM). The Li-alloying particles exhibited the formation of core-shell internal structure along with crack formation within the lithiated zone during the first lithiation. The extent and speed of the expansion process was shown to be a strong function of particle size. Upon completion of the first de-lithiaiton, the particles only partially (?10%) contracted, while re-crystallization of Sn continued to take place within the interior of the particles during a following idle period. The re-crystallization process alleviated the pulverization problem and led to the formation of porous Sn particles, which exhibited remarkably attenuated dimensional variations during subsequent cycles. ? 2009 Elsevier B.V. All rights reserved. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/409023 | ISSN: | 13882481 | DOI: | 10.1016/j.elecom.2009.12.002 |
顯示於: | 化學工程學系 |
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