锂硫电池用硫化花粉正极材料制备和表征

Syntheses and Characterization of Sulfur@pollen Cathode Materials for Lithium–sulfur Batteries

本文通过将油菜花粉直接与升华硫在一定温度下反应,获得了一种硫化花粉复合材料,并将其应用在锂硫电池中,探索了该方法直接制备正极材料的可能性。结果表明该材料表现出一定的充放电性能,相比于纯花粉烧结材料,充放电容量提高,是一种具有嵌锂能力的正极材料。

The conductivity of sulfide pollen was improved by Polyacrylonitrile and acetylene black.According to the battery with sulfur@pollen/PAN-300 and sulfur@pollen/C-300 as cathode respectively,both two materials showed good cyclic performance.Expect for the coulombic efficiency of first cycle is a little low;the reversibility of the subsequent cycles is high.