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Overview of Highly Solvating Electrolytes for Lean Electrolyte Conditions in Lithium–Sulfur Batteries
Abstract
Lithium-sulfur (Li–S) batteries are considered the next generation of lithium-ion batteries due to their high energy density,
but they face challenges in operation under lean electrolyte conditions. Among the potential strategies, highly solvating
electrolytes (HSEs) have become a prominent option. These electrolytes off er strong solvation of polysulfi de intermediates,
leading to modifi ed sulfur reaction pathways and deposition morphologies compared to conventional electrolytes. This
review presents a comprehensive summary of HSEs in Li–S batteries, with a focus on their development and optimization
for broad applications.
Keywords Lithium–sulfur batteries · Lean electrolyte condition · Lithium polysulfi de solubility · Trisulfur radical anion ·
Li 2 S deposition morphology
