Properties of Organo-Sulfur Compounds

Organo-sulfur compounds are classified into sulfide, sulfoxide, sulfone, sulfite, sulfonate, and sulfate depending on the number and kind of oxygen atoms. The physical properties of acyclic (dimethyl derivatives) and cyclic (five-membered derivatives) 

Code Positive electrode Electrolyte Voltage Manufacturer Year 

Type Negative electrode Positive electrode Electrolyte Manufacturer Year 

Sulfides contain a bivalent sulfur atom. Their strong, unpleasant odor is a prob-lan for use. Since lone-pair electrons on the sulfur atoms are easy to oxidize (low IP), there are no recent uses for use in batteries. 

Sulfolane (TMS) is the most smdied sulfur-containing organic solvent for lithium [150] and lithium-ion [151] cells. Since sulfolane is a solid at room temperature, like EC, it is often mixed with low-viscosity solvents to make electrolyte solutions. Dimethyl sulfone has a high melting point of 108 °C, and it is not easy to handle as a solvent, although it was used for lithium cells in high-temperature operation above 150 °C [152, 153]. Unsymmetrical ethyl methyl sulfone has a relatively low melting point of 37 °C, and it was studied extensively as an electrolyte solvent [154], 

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