Liu, Dezhong published the artcileStable Room-Temperature Sodium-Sulfur Batteries in Ether-Based Electrolytes Enabled by the Fluoroethylene Carbonate Additive, SDS of cas: 143-24-8, the main research area is stable room temperature sodium sulfur battery ether electrolytes enabled; cathode−electrolyte interphase; electrolyte additive; room-temperature sodium−sulfur batteries; sulfurized polyacrylonitrile cathode; “solid−solid” conversion.
Because of its high energy d. and low cost, the room-temperature sodium-sulfur (RT Na-S) battery is a promising candidate to power the next-generation large-scale energy storage system. However, its practical utilization is hampered by the short life span owing to the severe shuttle effect, which originates from the “”solid-liquid-solid”” reaction mechanism of the sulfur cathode. In this work, fluoroethylene carbonate is proposed as an additive, and tetraethylene glycol di-Me ether is used as the base solvent. For the sulfurized polyacrylonitrile cathode, a robust F-containing cathode-electrolyte interphase (CEI) forms on the cathode surface during the initial discharging. The CEI prohibits the dissolution and diffusion of the soluble intermediate products, realizing a “”solid-solid”” reaction process. The RT Na-S cell exhibits a stable cycling performance: a capacity of 587 mA h g-1 is retained after 200 cycles at 0.2 A g-1 with nearly 100% Coulombic efficiency.
ACS Applied Materials & Interfaces published new progress about Battery cathodes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, SDS of cas: 143-24-8.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem