| 초록 |
Carbon shows a good cycle performance but low theoretical capacity of 372 mAh/g. So, many studies on exploring alternative anode materials have been reported. Among them, silicon has been considered as a good candidate because of the highest theoretical capacity of 4000 mAh/g. However, its enormous volume change during the charge-discharge process results in a poor cycle performance. To overcome such problems in the existing anode materials, the silicon@carbon composite was prepared using the electro-spun hybrid precursors of silicon/PAN, in which silicon nanoparticles are well distributed within the polymer matrix so as to be incorporated within carbon matrix on a subsequent carbonization of the precursor. We analyzed the electrochemical performance of our products and compared with other previous results. |
