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Tin Phosphide as a Promising Anode Material for Na‐Ion Batteries

2014; Volume: 26; Issue: 24 Linguagem: Inglês

10.1002/adma.201305638

1521-4095

Youngjin Kim, Yongil Kim, Aram Choi, Sang-Won Woo, Duckgyun Mok, Nam‐Soon Choi, Yoon Seok Jung, Ji Heon Ryu, Seung M. Oh, Kyu Tae Lee,

Supercapacitor Materials and Fabrication

Sn4P3 is introduced for the first time as an anode material for Na-ion batteries. Sn4P3 delivers a high reversible capacity of 718 mA h g−1, and shows very stable cycle performance with negligible capa­city fading over 100 cycles, which is attributed to the confinement effect of Sn nanocrystallites in the amorphous phosphorus matrix during cycling.