A 100v electrolytic capacitor and its production process
An electrolytic capacitor and electrolytic paper technology, applied in electrolytic capacitors, liquid electrolytic capacitors, capacitors, etc., can solve problems such as short load life, and achieve the effects of extending life, improving temperature resistance, and increasing overall volume
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Embodiment 1
[0036] Take cathode foil and anode foil: electrocorrode cathode foil and anode foil, oxidize cathode foil and anode foil after electrocorrosion, and form an oxide film on the surface of cathode foil and anode foil; cut cathode foil, anode foil and insulating electrolytic paper, respectively The lead wire is connected with the cathode foil and the anode foil to form the negative electrode lead and the positive electrode lead, and the insulating electrolytic paper, the cathode foil and the anode foil are wound; the electrolyte is added, and the electrolyte is impregnated on the insulating electrolytic paper; the final assembly and crimping are carried out , charging, aging test and parameter detection.
[0037]In this embodiment, the composition of the electrolyte includes: 40% ethylene glycol, 40% glycerol, 10% γ-hydroxybutyrolactone, 5% ammonium benzoate, 2% azelaic acid EG solution, horse Ammonium hydrogen tomate 2.1%, o-nitroanisole 0.65%, citric acid 0.1%, phosphotungstic a...
Embodiment 2
[0041] This example is basically the same as Example 1, the difference is that in this example, the composition of the electrolyte includes: 70% ethylene glycol, 10% glycerol, 10% γ-hydroxybutyrolactone, ammonium benzoate 1%, azelaic acid EG solution 1%, ammonium hydrogen maleate 7.75%, o-nitroanisole 0.1%, phosphotungstic acid 0.1% and molybdic acid 0.05%.
[0042] In this embodiment, the voltage of the cathode foil is 5V, the capacity of the electrolytic capacitor is 22 μF, the diameter of the bottom surface of the housing is 10 mm, and the height is 16 mm.
Embodiment 3
[0044] This example is basically the same as Example 1, except that in this example, the composition of the electrolyte includes: 50% ethylene glycol, 20% glycerol, 19% gamma-hydroxybutyrolactone, ammonium benzoate 4%, azelaic acid EG solution 2%, ammonium hydrogen maleate 3.4%, o-nitroanisole 0.6%, citric acid 0.5% and phosphotungstic acid 0.5%.
[0045] In this embodiment, the capacity of the electrolytic capacitor is 33 μF, the diameter of the bottom surface of the shell is 10 mm, and the height is 20 mm.
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