摘要
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.
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.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2008年第1期141-144,共4页
Journal of Materials Science and Engineering
关键词
钠
插层反应
电池
硅薄膜电极
直流电磁控溅射
Sodium intercalation
Na battery
Si thin film electrode
DC magnetron sputtering
