Lithium-ion battery non-aqueous electrolyte and lithium-ion battery
A lithium-ion battery and non-aqueous electrolyte technology, which is applied in the direction of non-aqueous electrolyte batteries, non-aqueous electrolytes, lithium batteries, etc., can solve the problems of insufficient cycle performance and high-temperature storage performance, and achieve improved cycle performance and high-temperature storage performance, The effect of good cycle performance
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[0062] The preparation of fluorine-containing compound in compound B adopts corresponding carbonate and F 2 / N 2 After fluorination of the mixed gas, it can be purified by recrystallization or column chromatography. An example of its synthetic route is as follows:
[0063]
[0064] The cyano-containing compound in compound B is prepared by chlorinating the corresponding carbonate with sulfonyl chloride, then reacting with NaCN or KCN, and obtaining it through recrystallization or column chromatography purification. An example of its synthetic route is as follows:
[0065]
[0066] The trimethylsiloxy compound in compound B is prepared by substitution reaction of the corresponding hydroxycarbonate with nitrogen silane, and then purified by recrystallization or column chromatography. An example of its synthetic route is as follows:
[0067]
[0068] Further preferably, based on 100% of the total mass of the lithium-ion battery non-aqueous electrolyte, the mass perce...
Embodiment 1
[0084] A LiCoO 2 / artificial graphite battery, comprising a positive pole, a negative pole, a diaphragm arranged between the positive pole and the negative pole, and an electrolyte, wherein the electrolyte is a non-aqueous electrolyte, and the total amount of the non-aqueous electrolyte is The weight is 100%, containing the components shown in Table 1, Example 1, in mass percent.
Embodiment 2
[0086] A LiCoO 2 / artificial graphite battery, comprising a positive pole, a negative pole, a diaphragm arranged between the positive pole and the negative pole, and an electrolyte, wherein the electrolyte is a non-aqueous electrolyte, and the total amount of the non-aqueous electrolyte is The weight is 100%, containing the components shown in Table 1, Example 2, in mass percent.
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