Method for producing an anti-wetting barrier, and anode comprising one such anti-wetting barrier
View Patent ↗A method produces an anti-wetting barrier on an electrode that is connected to an anode of an electrolytic capacitor. The method includes applying drops of a fluid anti-wetting agent to the electrode to form the anti-wetting barrier. The drops arc applied at intervals so that the anti-wetting barrier is linear after the anti-wetting agent dries.
1. A method of producing an anti-wetting barrier on an electrode that is connected to an anode of an electrolytic capacitor, the method comprising:
applying drops of a fluid anti-wetting agent to the electrode to form the anti-wetting barrier, the drops being applied at intervals so that the anti-wetting barrier is linear after the anti-wetting agent dries.
2. The method of claim 1 , wherein the anti-wetting barrier is less than 5 μm thick.
3. The method of claim 1 , wherein the anti-wetting barrier has a width of less than 500 μm.
4. The method of claim 1 , wherein the drops are applied by pressing the fluid anti-wetting agent through a capillary tube.
5. The method of claim 4 , wherein the capillary tube does not contact the electrode when the drops are applied.
6. The method of claim 1 , wherein the drops have a volume between 30 and 500 pl.
7. The method of claim 1 , wherein the electrode has at least one level side surface.
8. The method of claim 1 , wherein the fluid anti-wetting agent comprises a suspension that includes an industrial coating that is hydrophobic.
9. The method of claim 1 , wherein the fluid anti-wetting agent has a viscosity of less than 10 mPas.
10. An anode for an electrolytic capacitor, the anode comprising:
an electrode;
an anode body connected to the electrode; and
an anti-wetting barrier having a linear shape formed by application of drops of an anti-wetting agent to the electrode at intervals, the anti-wetting barrier having a thickness of less than 5 μm.
11. The anode of claim 10 , wherein the anti-wetting barrier comprises the drops that have dried on the electrode.
12. The anode of claim 10 , wherein the anti-wetting barrier has a width of less than 500 μm.
13. The anode of claim 11 , wherein the drops have a volume between 30 and 500 pl.
14. The anode of claim 10 , wherein the anti-wetting agent comprises a suspension that includes an industrial coating that is hydrophobic.
15. The anode of claim 10 , wherein the anti-wetting agent has a viscosity of less than 10 mPas.