Two Dimensional Carbon-Host Materials

Abstract

This chapter provides a comprehensive overview of two-dimensional carbon-host materials, focusing on their application in lithium-sulfur batteries. Various configurations of carbon, including graphene, graphene oxide, and mesoporous carbon nanosheets, are explored. The effects of different functional groups, such as pyridinic nitrogen, ketone oxygen, graphitic boron, and fluorine, on the anchoring effect of heteroatom dopants toward sulfur-containing species are described. Importantly, this study transcends experimental investigations, delving into the computational viewpoint. The interplay between the material characteristics, electrolyte penetration, volume expansion, and the shuttle effect is discussed. Potential solutions to these challenges, including those based on free volume optimization, additive incorporation, and the implementation of binder-free electrode structures, are explored. This dual perspective, considering both experimental and computational aspects, enhances our understanding of the intricate kinetics influencing the performance of two-dimensional carbon hosts in lithium-sulfur batteries, thereby laying the groundwork for advanced battery technology.