Sulfide electrolyte membrane as well as preparation method and application thereof
A sulfide electrolyte and polymer technology, applied in solid electrolytes, non-aqueous electrolytes, circuits, etc., can solve the problems of increased cost, difficulty in industrialized scale production, and complex manufacturing methods, and achieve improved electrical conductivity, shape controllable, lightening The effect of conductivity loss
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Embodiment 1
[0056] This embodiment provides a sulfide electrolyte membrane with a thickness of 40 μm, and the surface of the sulfide electrolyte membrane is coated with an ion-conducting polymer layer.
[0057] The preparation method of the sulfide electrolyte membrane is as follows:
[0058] (1) polyethylene oxide and LiFSI are dissolved in acetonitrile with a mass ratio of 3:1 to obtain a mixed solution with a viscosity less than 10 cp;
[0059] (2) The sulfide electrolyte Li 6 P.S. 5 Cl is dispersed and crushed using a high-energy ball mill at 350 rpm to obtain sulfide electrolyte particles with a median particle size below 3 μm;
[0060] (3) The mixed solution in step (1) is atomized by spraying method to make it adhere to the surface of the sulfide electrolyte particles, and the temperature of the high-temperature airflow at the bottom of the reactor is 80°C to dry the mixed solution to obtain ion-conducting polymerization A sulfide electrolyte membrane precursor coated with a mat...
Embodiment 2
[0063] This embodiment provides a sulfide electrolyte membrane with a thickness of 15 μm, and the surface of the sulfide electrolyte membrane is coated with an ion-conducting polymer layer.
[0064] The preparation method of the sulfide electrolyte membrane is as follows:
[0065] (1) Polyacrylonitrile and LiPF 6 Dissolve in tetrahydrofuran in a ratio of 2:1 with a mass ratio to obtain a mixed solution with a viscosity of 15 cp;
[0066] (2) The sulfide electrolyte Li 7 P 3 S 11 Use a high-energy ball mill to disperse and crush at 400 rpm to obtain sulfide electrolyte particles with a median particle size below 2 μm;
[0067] (3) The mixed solution in step (1) is atomized by spraying method so that it adheres to the surface of the sulfide electrolyte particles, and the temperature of the high-temperature airflow at the bottom of the reactor is 120°C to dry the mixed solution to obtain ion-conducting polymerization A sulfide electrolyte membrane precursor coated with a mat...
Embodiment 3
[0070] This embodiment provides a sulfide electrolyte membrane with a thickness of 50 μm, and the surface of the sulfide electrolyte membrane is coated with an ion-conducting polymer layer.
[0071] The preparation method of the sulfide electrolyte membrane is as follows:
[0072] (1) polyethylene oxide and LiFSI are dissolved in acetonitrile with a mass ratio of 4:1 to obtain a mixed solution with a viscosity of 8 cp;
[0073] (2) The sulfide electrolyte Li 6 P.S. 5 Cl is dispersed and crushed using a high-energy ball mill at 350 rpm to obtain sulfide electrolyte particles with a median particle size below 3 μm;
[0074] (3) The mixed solution in step (1) is atomized by spraying method to make it adhere to the surface of the sulfide electrolyte particles, and the temperature of the high-temperature airflow at the bottom of the reactor is 100°C to dry the mixed solution to obtain ion-conducting polymerization The precursor of the sulfide electrolyte membrane coated with the...
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Abstract
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