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Application of 1,3-ps and 1,3-propane sulfonic ester in electrolyte of lithium battery
- Jul 23, 2018 -

Application of 1,3-ps:1,3-propane sulfonic ester in electrolyte of lithium battery Lithium-ion batteries gradually replace Ni-MH-ni-CD batteries, in the field of mobile power rapid popularization, because of lithium iron phosphate battery because of low cost and high stability, but because of the low intrinsic conductivity of lithium phosphate and lithium ions in the solid phase diffusion coefficient low, low temperature performance.

Therefore, in addition to the positive and negative materials, there is an important direction-electrolyte for improving the low temperature performance of lithium iron phosphate batteries.

Lithium battery electrolyte is the carrier of ion transmission in the battery, mainly by the high purity organic solvents, electrolyte lithium salt, the necessary additives and other raw materials, electrolyte in the lithium battery between the anode and the conduction of the role of electrons, lithium-ion batteries to obtain high voltage, Caobinen and other advantages of the guarantee. The common components of lithium battery electrolyte are vinyl carbonate, diethyl carbonate, dimethyl carbonate, ethyl carbonate, lithium hexafluorophosphate, phosphorus fluoride, hydrofluoric acid, etc., the battery made of lithium perchlorate low temperature effect, there is a risk of explosion, Japan and the United States has been banned. 

The battery with fluorine lithium salt has good performance, no explosion danger, strong applicability, the disposal of waste battery is relatively simple, eco-friendly and other characteristics.

Optimization of electrolyte formula for lithium battery The 2-chloro -1,3-propane sulfonate was synthesized by chlorination of 1,3-propane sulfonate, and then the 1,3-propane sulfonate was prepared by using triethylamine as acid-binding agent, and the reaction route was shortened and the two-step reaction yield was 72.7% compared with the literature.