Tin phosphide as a promising anode material for Na-ion batteries.
Sn4 P3 is introduced for the first time as an anode material for Na-ion batteries. Sn4 P3 delivers a high reversible capacity of 718 mA h g(-1), and shows very stable cycle performance with negligible capa-city fading over 100 cycles, which is attributed to the confinement effect of Sn nanocrystallites in the amorphous phosphorus matrix during cycling.
School of Chemical and Biological Engineering, Seoul National University, 599 Gwanangno, Gwanak-gu, Seoul, 151-744, South Korea.
Youngjin
Y
Kim
Yongil
Y
Kim
Aram
A
Choi
Sangwon
S
Woo
Duckgyun
D
Mok
Nam-Soon
NS
Choi
Yoon Seok
YS
Jung
Ji Heon
JH
Ryu
Seung M
SM
Oh
Kyu Tae
KT
Lee
anode; electrochemical performance; reaction mechanism; sodium ion battery; tin phosphide