Kosir, Urban published the artcilePolysulfide species in various electrolytes of Li-S batteries – a chromatographic investigation, Application of 2,5,8,11,14-Pentaoxapentadecane, the main research area is polysulfide species various electrolyte lithium sulfur batteries chromatog.
The HPLC method including derivatization was used for the determination of polysulfide species concentration during the operation of Li-S battery cells. A comparison was made between a glyme based electrolyte, which exhibits high polysulfide solubility, and a fluorinated ether based electrolyte, which probably reduces the dissolution and diffusion of polysulfides. A sep. anal. was conducted on porous C cathodes and separators obtained from cycled battery cells. The determination of the species concentration trends allowed a deeper understanding of the differences in battery cell operating mechanism. Polysulfide species are formed in similar concentrations in both examined electrolytes, but they remain trapped in the cathode pores in the fluorinated ether based electrolyte Li-S battery cells. The polysulfide concentration in the separators of the fluorinated ether cells was below the limit of detection, which indicates that the solubilities of polysulfides in the fluorinated electrolyte are <50μM. This results in absence of disproportionation or coproportionation reactions between the polysulfide species in solution This different mechanism influences the change in length and potential of the voltage plateaus of the battery cells during galvanostatic cycling. Electrochimica Acta published new progress about Battery electrolytes. 143-24-8 belongs to class ethers-buliding-blocks, name is 2,5,8,11,14-Pentaoxapentadecane, and the molecular formula is C10H22O5, Application of 2,5,8,11,14-Pentaoxapentadecane.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem