Photo by timothycdykes from unsplash
Abstract The serious shuttle effect and sluggish redox kinetics hinder the practical implementation of Li-S batteries. Here, we proposed a general method for large-scale synthesis of hierarchical porous SiO2@C host… Click to show full abstract
Abstract The serious shuttle effect and sluggish redox kinetics hinder the practical implementation of Li-S batteries. Here, we proposed a general method for large-scale synthesis of hierarchical porous SiO2@C host derived from waste rice husks. The prepared [email protected] cathode exhibits superior electrochemical properties, which can be attributed to the physical adsorption of porous carbon shell and chemical anchoring effect of SiO2 nanoparticles. Moreover, the hierarchical porous carbon matrix provides a highly conductive channel for rapid electron and ion transport, and offers enough space for the volume expansion of elemental S during the reaction.
Journal Title: Materials Letters
Year Published: 2021
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!