Graphene enriched separators for Lithium-Sulfur batteries: recent advancements and progress

Rapid growth of lithium–sulfur batteries (Li–S) has driven substantial research into enhancing their performance, safety, and durability. Among various components, the function of the separator is crucial in maintaining the efficiency and stability of Li–S batteries. Materials, especially graphene-based, have emerged as a potential option for separators owing to their unique properties, namely excellent mechanical strength, high thermal conductivity, and remarkable electrochemical stability. This review comprehensively explores the recent advancements in graphene-based separators for Li–S batteries. Here, we explore the impact of these graphene-based separators on key performance parameters such as electrochemical properties and charge–discharge processes. Additionally, the challenges and opportunities associated with integrating graphene materials into commercial Li–S battery separators are discussed. The present article intends to impart a general understanding of the current state of graphene-based separators and their potential to revolutionize the future generation of high-throughput Li–S batteries.