材料科学与工程学报
材料科學與工程學報
재료과학여공정학보
MATERIALS SCIENCE AND ENGINEERING
2008年
1期
141-144
,共4页
Sodium intercalation%Na battery%Si thin film electrode%DC magnetron sputtering
In order to investigate the possibility of Si thin film as an anode for Na battery, we studied the electrochemical intercalation of sodium into the Si film. Amorphous Si thin film electrode was prepared using DC magnetron sputtering. Sodium ion could intercalate into Si thin film upto Na0.52Si, i.e. 530mAh · g-1-Si. The first discharge capacity was 80mAh.·g-1-Si, which meant reversible amount of sodium intercalation. The discharge capacity slightly decreased to
70mAh · g-1-Si after 10 cycles.
