This book provides an effective review and critical analysis of the recently demonstrated room-temperature sodium-sulfur batteries. Divided into three sections, it highlights the status of the technologies and strategies developed for the sodium metal anode, insight into the development of sulfur cathode, and electrolyte engineering. It reviews past, present, and future perspectives for each cell component including characterization tools unveiling the fundamental understanding of the room-temperature sodium-sulfur batteries.FEATURES: Highlights scientific challenges in developing room-temperature sodium-sulfur batteries Covers pertinent anode, cathode, and electrolyte engineering Provides scientific and technical interpretation for each of the cell components Discusses how Na-S batteries relate to the more extensively researched Li-S batteries Explores importance of the SEI and CEI in developing stable sodium-sulfur batteries This book is aimed at graduate students and researchers in energy science, materials science, and electrochemistry.