Application of sodium-type sulfonated polyetheretherketone as binder in zinc-nickel redox flow battery electrodes
A technology of sulfonated polyether ether ketone and liquid flow battery, which is applied in battery electrodes, fuel cells, regenerative fuel cells, etc., and can solve problems such as attenuation and unstable performance of binders
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[0020] The sulfonated polyetheretherketone resin was soaked in 4M sodium bicarbonate solution at 60°C for 3 hours, washed with water and dried to obtain sodium-formed sulfonated polyetheretherketone (SPEEK) resin.
[0021] Slurry configuration: in parts by weight, 5 parts of sodium-type sulfonated polyether ether ketone, 10 parts of carbon powder, and 85 parts of nickel hydroxide are dissolved in dimethylformamide to obtain a slurry for use; Coating method Apply the slurry evenly on the 36cm 2 On the carbon felt, the carbon felt coated with the slurry is vacuum-dried at high temperature. The drying temperature is 80°C, the drying time is 600s, the vacuum degree is 0 MPa, and the pressure is maintained and the temperature is lowered to room temperature to obtain the electrode product.
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