High-specific capacitance electrode foil electrolyte, composition thereof and preparation method of electrode foil
A technology of electrode foil and electrolyte, which is applied in the direction of electrolytic capacitors, electrolytic coatings, surface reaction electrolytic coatings, etc., can solve the problems of unable to meet market demand and large capacity loss, reduce leakage, increase specific volume and life, and can highly operable effect
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[0020] Example 1:
[0021] The preparation method of electrode foil includes the following steps:
[0022] Step one, cut the aluminum foil into a width of 6.5*6.5m 2 Sample of aluminum foil;
[0023] Step 2: Boil the aluminum foil sample in high-temperature water for 10-15 minutes to obtain the intermediate sample;
[0024] Step 3: Place the intermediate sample in the electrolyte (the concentration of each component in the electrolyte is as follows: the concentration of boric acid is 20g / L, the concentration of tartaric acid is 0.5g / L, the concentration of ammonium pentaborate is 1g / L, and the concentration of ammonium dihydrogen phosphate The concentration is 0.5g / L), and the current density is 80mA / cm 2 Under the action of the current, anodization, heat treatment, intermediate treatment, secondary anodization and post-treatment are carried out in sequence to obtain electrode foil. The performance indicators of the electrode foil are as follows: the final withstand voltage value is ...
Example Embodiment
[0025] Example 2:
[0026] The preparation method of electrode foil includes the following steps:
[0027] Step one, cut the aluminum foil into a width of 6.5*6.5m 2 Sample of aluminum foil;
[0028] Step 2: Boil the aluminum foil sample in high-temperature water for 10-15 minutes to obtain the intermediate sample;
[0029] Step three, place the intermediate sample in the electrolyte (the concentration of each component in the electrolyte is as follows: the concentration of boric acid is 20g / L, the concentration of tartaric acid is 0.5g / L, the concentration of ammonium pentaborate is 5g / L, and the concentration of ammonium dihydrogen phosphate The concentration is 0.5g / L), and the current density is 80mA / cm 2 Under the action of the current, anodization, heat treatment, intermediate treatment, secondary anodization and post-treatment are carried out in sequence to obtain electrode foil. The performance indicators of the electrode foil are as follows: the final withstand voltage value...
Example Embodiment
[0030] Example 3:
[0031] The preparation method of electrode foil includes the following steps:
[0032] Step one, cut the aluminum foil into a width of 6.5*6.5m 2 Sample of aluminum foil;
[0033] Step two, boil in high-temperature water for 10-15 minutes to obtain an intermediate sample;
[0034] Step 3: Place the intermediate sample in the electrolyte (the concentration of each component in the electrolyte is as follows: the concentration of boric acid is 20g / L, the concentration of tartaric acid is 2.5g / L, the concentration of ammonium pentaborate is 1g / L, and the concentration of ammonium dihydrogen phosphate The concentration is 0.5g / L), and the current density is 80mA / cm 2 Under the action of the current, anodization, heat treatment, intermediate treatment, secondary anodization and post-treatment are carried out in sequence to obtain electrode foil. The performance indicators of the electrode foil are as follows: the final withstand voltage value is 541-542V, and the capaci...
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