A kind of preparation method of lithium battery electrolyte
An electrolyte and lithium battery technology, applied in the field of lithium battery electrolyte preparation, can solve problems such as poor thermal stability of the electrolyte, and achieve the effects of improved low temperature stability, good stability, and improved thermal stability
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example 1
[0020] Mix polyethylene wax and sulfuryl chloride in a flask at a mass ratio of 1:1, and add an inorganic lithium salt 0.2 times the weight of polyethylene wax to the flask, and move the flask into a magnetic stirrer with a digital display, speed measurement, and constant temperature at a temperature of 120°C. , under the condition of rotating speed of 240r / min, stir and mix for 45min to obtain polyethylene wax mixture; mix sepiolite and lithium aluminum tetrachloride at a mass ratio of 1:1, and add sepiolite and lithium aluminum tetrachloride Add water 5 times the mass of sepiolite to the mixture, stir and mix for 80 minutes at a temperature of 55°C and a rotating speed of 350r / min, filter to obtain a filter cake, move the filter cake into a drying oven, and place the filter cake at a temperature of 80 Under the condition of ℃, after constant temperature drying for 30 minutes, the pretreated sepiolite is obtained; the pretreated sepiolite and polyethylene wax mixture are mixed...
example 2
[0022]Mix sepiolite and lithium aluminum tetrachloride at a mass ratio of 1:1, and add water 5 times the mass of sepiolite to the mixture of sepiolite and lithium aluminum tetrachloride, at a temperature of 55°C and a rotation speed of Under the condition of 350r / min, after stirring and mixing for 80min, filter to obtain a filter cake, move the filter cake into a drying oven, and dry at a constant temperature for 30min at a temperature of 80°C to obtain pretreated sepiolite; N'- Mix hexadecyl-N,N-dimethylethylamidine and dimethyl sulfoxide at a mass ratio of 1:5, and add to N'-hexadecyl-N,N-dimethylethylamidine and Add polyallylamine 0.4 times the mass of N'-hexadecyl-N,N-dimethylethylamidine to the mixture of dimethyl sulfoxide, at a temperature of 45°C and a rotational speed of 320r / min, After stirring and mixing for 80 minutes, the additive was obtained; in parts by weight, 25 parts of ethylene carbonate, 23 parts of dimethyl carbonate, 25 parts of diethyl carbonate, 18 par...
example 3
[0024] Mix polyethylene wax and sulfuryl chloride in a flask at a mass ratio of 1:1, and add an inorganic lithium salt 0.2 times the weight of polyethylene wax to the flask, and move the flask into a magnetic stirrer with a digital display, speed measurement, and constant temperature at a temperature of 120°C. , under the condition of rotating speed of 240r / min, stir and mix for 45min to obtain polyethylene wax mixture; mix sepiolite and lithium aluminum tetrachloride at a mass ratio of 1:1, and add sepiolite and lithium aluminum tetrachloride Add water 5 times the mass of sepiolite to the mixture, stir and mix for 80 minutes at a temperature of 55°C and a rotating speed of 350r / min, filter to obtain a filter cake, move the filter cake into a drying oven, and place the filter cake at a temperature of 80 Under the condition of ℃, after constant temperature drying for 30 minutes, the pretreated sepiolite is obtained; the pretreated sepiolite and polyethylene wax mixture are mixed...
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Abstract
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