PROJECT TITLE :
Electrochemical Properties of Electrode Comprising of Si Nanopowder Inserted in an Enclosed Structure in C-Coated AAO by Using a Facile Method
Si, Sn, Al, Ge, and their compounds are a number of the potential candidates for use as anodic materials in Li-ion secondary batteries. Especially, Si is a promising anode material for Li-ion batteries because of the high theoretical capability of 420zero mAh/g-based on the formation of Li4.4Si phase. However, the formation of Li4.4 Si induces a giant volume expansion within the electrode and results in a speedy drop in capability. To overcome this problem many experiments and theoretical efforts are centered on enhancing structural stability of an Si in electrode. Many methods have been also reported for the fabrication of 3-dimensional electrode arrays. During this study, we tend to report an improvement of the cycling performance of an Si-nanopowder-based electrode. Si-nanopowder was inserted and confined on the C-coated anodic aluminum oxide by using a new method. It is confirmed from this study that cycling behavior of the Si-powder electrode will be significantly improved by using the method proposed in this study.
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