Porous electrode for flow battery and preparation method of porous electrode
A porous electrode, flow battery technology, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as sacrificing electrode transmission performance, and achieve the effect of ensuring mechanical properties, ensuring electrical conductivity, and improving battery performance
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[0035] Example 1
[0036] A porous electrode prepared by the following method:
[0037] (1) Weigh 2g polyacrylonitrile (PAN), 1g zinc nitrate and 17g N,N-dimethylformamide, mix them, and heat and dissolve in a 70°C water bath to prepare electrospinning stock solution.
[0038] (2) Take 15 mL of the electrospinning stock solution from step 1, connect to a 20G (inner diameter 0.60mm) needle, and set the electrospinning stock solution to 1.0 mL h -1 , The electrospinning voltage is 17kV, the distance from the needle to the receiving end is 20cm, and the receiving rotor speed is 200rpm. The environmental temperature of electrospinning is 25°C and the relative humidity is 55%. Remove the electrospun fiber membrane after spinning for 10 hours.
[0039] (3) Weigh 1g of 2-methylimidazole and dissolve it in 200mL of methanol and ethanol with a volume ratio of 1:1, and cut the electrospun fiber membrane (4cm×4cm) in step 2 and soak in the 2-methylimidazole solution. After stirring for 12 hour...
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[0046] Example 2
[0047] A porous electrode prepared by the following method:
[0048] (1) Weigh 2g of polyacrylonitrile, 1g of zinc acetate and 17g of N,N-dimethylformamide and mix them with heating and dissolving in a 70°C water bath to prepare electrospinning stock solution.
[0049] (2) Take 15 mL of the electrospinning stock solution from step 1, connect to a 20G (inner diameter 0.60mm) needle, and set the electrospinning stock solution to 1.0 mL h -1 , The electrospinning voltage is 17kV, the distance from the needle to the receiving end is 20cm, and the receiving rotor speed is 200rpm. The environmental temperature of electrospinning is 25°C and the relative humidity is 55%. Remove the electrospun fiber membrane after spinning for 10 hours.
[0050] (3) Weigh 1g of 2-methylimidazole and dissolve it in 200mL of methanol and ethanol with a volume ratio of 1:1, and cut the electrospun fiber membrane (4cm×4cm) in step 2 and soak in the 2-methylimidazole solution. After stirring ...
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