165108-64-5Relevant articles and documents
Sulfur-containing additive based on ethylene sulfate, electrolyte containing sulfur-containing additive and lithium ion battery
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Paragraph 0077-0081, (2020/12/29)
The invention provides a sulfur-containing additive based on ethylene sulfate, an electrolyte containing the sulfur-containing additive and a lithium ion battery, belongs to the technical field of lithium ion batteries, and aims to improve the stability of an SEI film and improve the Li conductivity of the SEI film so as to improve the high and low temperature performance of the lithium ionbattery. The structural formula of the additive is based on ethylene sulfate, and an organic molecular chain segment containing a lithium salt functional group is grafted on a cyclic molecular structure of the additive.
Cyclic sulphate preparation method
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Paragraph 0083; 0084; 0085, (2018/09/11)
The invention relates to the field of organic synthesis and especially relates to a cyclic sulphate preparation method. The sulphate preparation method disclosed by the invention comprises the step ofreacting a compound shown in formula II with sulfuryl chloride under the reaction solvent existence condition to prepare and obtain a compound shown in formula I. The sulphate preparation method disclosed by the invention has the characteristics of brief steps, small side reaction, simpleness in aftertreatment, small three wastes, low manufacturing cost, suitability for industrial large-scale production and the like.
Preparation method of cyclic sulfate
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Paragraph 0082; 0083; 0084; 0085, (2018/03/28)
The invention relates to the field of organic synthesis, in particular to a preparation method of cyclic sulfate. The structural formula of cyclic sulfate is shown as formula I. The preparation methodof cyclic sulfate comprises the following step: cyclic sulfate in the formula I is prepared from a compound in formula II and sulfuryl fluoride by reacting in the presence of an acid binding agent and a catalyst. The preparation method of cyclic sulfate adopts short reaction step, cyclic sulfate can be prepared with the one-step reaction, cost of raw and auxiliary materials is low, and expensiveraw materials and oxidizing agent are not used.