Sn@Ni3Sn4 embedded nanocable-like carbon hybrids for stable lithium-ion batteries

Abstract

Sn@Ni₃Sn₄ embedded nanocable-like carbon hybrids have been successfully prepared through a novel gas-phase route. The introduced Ni₃Sn₄ layer not only suppresses the tin-induced volume expansion, but also provides more voids and vacancies in the interior of the nanocables. When used as the anode in LIBs, the Sn@Ni₃Sn₄/C hybrids exhibit a long cycle life (360 mA h g⁻¹ at 1 A g⁻¹ after 1500 cycles).