A kind of aluminum/carbon composite cathode foil for solid aluminum capacitor and preparation method thereof
A carbon composite and cathode foil technology, applied in capacitors, electrolytic capacitors, circuits, etc., can solve the problems of aluminum/carbon composite foils, complicated preparation procedures, etc., and achieve the effects of low cost, simple process operation, and increased conductivity.
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Embodiment 1
[0040] A method for preparing an aluminum / carbon composite cathode foil for a solid aluminum capacitor, the specific steps are as follows:
[0041] The mass percentages of each substance in the aluminum / carbon composite cathode foil are: 70% of activated carbon, 5% of acetylene black, 10% of graphite powder, 5% of metal tin powder, 10% of binder, N-methylpyrrolidone ( battery grade) 4mL;
[0042] 1) Prepare mixed carbon slurry: mix organic solvent, binder, activated carbon, graphite powder, acetylene black and metal tin powder to obtain mixed carbon slurry;
[0043] Put the activated carbon powder into the electric drying oven, heat it at 120°C for 2 hours for drying treatment; add 0.02g of binder to the organic solvent to dissolve and continue stirring with a magnetic stirrer for 4 hours, then slowly add 0.15g of activated carbon powder and 0.02g of graphite powder and continue stirring Over 4 hours, then add 0.01g of acetylene black, and finally add 0.01g of metal tin powde...
Embodiment 2
[0048] A method for preparing an aluminum / carbon composite cathode foil for a solid aluminum capacitor, the specific steps are as follows:
[0049] The mass percentages of each substance in the aluminum / carbon composite cathode foil are respectively: 65% of activated carbon, 10% of acetylene black, 10% of graphite powder, 5% of metal tin powder, 10% of binding agent, N-methylpyrrolidone ( battery grade) 4mL;
[0050] 1) Prepare mixed carbon slurry: mix organic solvent, binder, activated carbon, graphite powder, acetylene black and metal tin powder to obtain mixed carbon slurry;
[0051] Put the activated carbon powder into the electric drying oven, heat it at 120°C for 2 hours for drying treatment; dissolve 0.02g of the binder added with the organic solvent and continue stirring with a magnetic stirrer for 4 hours, then slowly add 0.14g of activated carbon powder and 0.02g of graphite powder and continue stirring Over 4 hours, then add 0.02g of acetylene black, and finally ad...
Embodiment 3
[0056] A method for preparing an aluminum / carbon composite cathode foil for a solid aluminum capacitor, the specific steps are as follows:
[0057] The mass percentages of each substance in the aluminum / carbon composite cathode foil are respectively: 75% of activated carbon, 5% of acetylene black, 5% of graphite powder, 5% of metal tin powder, 10% of binder, N-methylpyrrolidone ( battery grade) 4mL;
[0058] 1) Prepare mixed carbon slurry: mix organic solvent, binder, activated carbon, graphite powder, acetylene black and metal tin powder to obtain mixed carbon slurry;
[0059] Put the activated carbon powder into an electric drying oven, keep it warm at 120°C for 2 hours for drying treatment; dissolve 0.02g of the binder added by the organic solvent and continue stirring with a magnetic stirrer for 4 hours, then slowly add 0.16g of activated carbon powder and 0.01g of graphite powder and continue stirring Over 4 hours, then add 0.01g of acetylene black, and finally add 0.01g...
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