Next‐Generation LiS Batteries: Impact of Nanowire‐Based Electrocatalysts

LiS batteries (LSBs) with their exceptionally high energy density are considered as a more sustainable, green, and cost‐effective next‐generation energy storage solutions beyond conventional Li‐ion batteries (LIBs). Despite their potential, LSBs encounter some key challenges that constrain their commercialization. To tackle these issues and improve the performances of LSBs, researchers have explored various nanomaterials, among which nanowires (NWs) have emerged as one of the potential candidates. Their high aspect ratio ensures efficient electron‐ion transport along their length while confining the movement across the radial direction, thereby regulating the reaction kinetics. Additionally, NWs provide exceptional mechanical strength and interface stability, contributing to enhanced cyclic stability. This review begins with summarizing the basic electrochemistry of LSBs and the associated major technical challenges. Next, it presents a comprehensive and systematic overview of the contemporary research progress in the application of NW electrocatalysts across various LSB components including cathode, separator, and interlayer, correlating their key roles in boosting electrochemical performances. The employment of in situ characterization techniques in these systems has also been discussed to get deeper insights. Finally, the review concludes with an outlook on the anticipated prospects of NWs in the future advancement of high‐performance LSBs.