The enhanced performance of lithium sulfur battery with ionic liquid-based electrolyte mixed with fluorinated ether

Intrinsically Nonflammable Ionic Liquid‐Based Localized Highly Concentrated Electrolytes Enable High‐Performance Li‐Metal Batteries

“…However, only a very few superficial studies have used HFE as diluent for IL‐based electrolyte. [ 7b,12 ] Further exploration of such safe electrolytes, especially understanding how the Li + solvation structure affects the SEI formation process and Li deposition behavior, is very important for promoting their applications in LMBs.…”

Electrolyte Issues in Lithium–Sulfur Batteries: Development, Prospect, and Challenges

“…The hybrid ILs electrolytes using the concentrated strategy showed good polysulfide insolubility features. Recently, the TTE was used as a cosolvent of ionic liquid to design electrolytes for Li–S batteries, where the 1.0 M LiTFSI in EMITFSI is the basic electrolyte . It was found that the TTE can promote the ionic conduction, modify and stabilize the SEI on Li metal, reduce charge transfer impedance, and restrict dissolution and shuttle of polysulfides.…”

“…Recently, the TTE was used as a cosolvent of ionic liquid to design electrolytes for Li−S batteries, where the 1.0 M LiTFSI in EMITFSI is the basic electrolyte. 146 It was found that the TTE can promote the ionic conduction, modify and stabilize the SEI on Li metal, reduce charge transfer impedance, and restrict dissolution and shuttle of polysulfides. Thus, a high reversible capacity, good cycle performance, and rate capability can be achieved at moderate TTE addition.…”

SiO 2 blending polyetherimide separator modified with acetylene black/polyvinylpyrrolidone coating layer to enhance performance for lithium‐sulfur batteries

“…4,5 Apart from the shuttle effect, the volume difference between sulfur and lithium sulfide during cycling can easily lead to the damage of the cathode. 6 What is worse, other issues including the growth of Li dendrites, 7 low conductivity of sulfur 8 also remain to be addressed for the high-performance Li-S batteries.…”