Subsulfic acid is another class of sulfur-containing organic solvents that may be applied to lithium ion batteries. The sulfite (ES) and sulfate (PS) may be used alone as an electrolyte or as an additive passivation carbon negative electrode. Because the structure is similar to the carbonate, the two types of solvents can be used with each other.
For example, W Rodnigg et al. Found that 5 latitude Ps in PC can increase the antioxidant resistance of the electrolyte, and also contribute to the tide of lithium ions in the graphite electrode. However, the boundary is high. The addition of a small amount of ES or PS in the PC-based electrolyte can also significantly improve the cathode performance, and suppressing the disruption of the PC common to the corphurus negative electrode.
As the additive, the dimethyl methane (DMS) and sulfite (DES) of sulfite is not as good as ES and PS; as an intensive solvent of EC, it is obviously poor in Dec and DMC equivalent linear carbonate, but their electrolysis is composed of EC Liquid (volume ratio 1: 1) is good. The electrolyte composed of EC-DMS and EC-DES mixed solvents can be used in close to -40 ¡ã C and -20 ¡ã C.
In addition to the above solvent, there is a partial boron solvent, an aromatic solvent, etc., but these solvents are generally used as additives, and their comprehensive performance does not meet the needs of lithium ion battery applications. The relevant research still has to be further carried ou
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