摘要
A few-layered MoS2-C composite material is studied as a supporting material for silicon nanopowder. Microspheres of the few-layered MoS2-C composite embedded with 30 wt.% Si nanopowder are prepared by one-pot spray pyrolysis. The Si nanopowder particles with high capacity are completely surrounded by the few-layered MoS2-C composite matrix. The discharge capacities of the MoS2-C composite microspheres with and without 30 wt.% Si nanopowder after 100 cycles are 1,020 and 718 mAh·g^-1 at a current density of 1,000 mA·g^-1 respectively. The spherical morphology of the MoS2-C composite microspheres embedded with Si nanopowder is preserved even after 100 cycles because of their high structural stability during cycling. The MoS2-C composite layer prevents the formation of unstable solid-electrolyte interface （SEI） layers on the Si nanopowder. Furthermore, as the MoS2-C composite matrix exhibits high capacity and excellent cycling performance, these characteristics are also reflected in the MoS2-C composite microspheres embedded with 30 wt.% Si nanopowder.
很少分层的瞬间 <sub>2</sub>-C 合成材料为硅 nanopowder 作为支持的材料被学习。很少分层的瞬间 <sub>2</sub>-C 的 Microspheres 合成与 30 嵌入 wt.% Si nanopowder 被一个壶水花热分解准备。有高能力的 Si nanopowder 粒子被很少分层的瞬间 <sub>2</sub>-C 完全包围合成矩阵。瞬间 <sub>2</sub>-C 的分泌物能力有或没有在 100 个周期以后的 30 wt.% Si nanopowder 的合成 microspheres 是 1,020 和 718
