Process for solid electrolytic capacitors using polymer slurries
First Claim
1. A process for forming a solid electrolytic capacitor comprising:
- providing an anode wherein said anode comprises a porous body and an anode wire extending from said porous body;
forming a dielectric on said porous body to form an anodized anode;
andapplying a first slurry to said anodized anode to form a blocking layer wherein said first slurry comprises a first conducting polymer with a median particle size of at least 0.05 μ
m;
forming a layer of crosslinker on said blocking layer; and
applying a slurry of a second conducting polymer on said layer of crosslinker.
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Abstract
A process for forming a solid electrolytic capacitor and an electrolytic capacitor formed by the process. The process includes: providing an anode wherein the anode comprises a porous body and an anode wire extending from the porous body; apply a thin polymer layer onto the dielectric, and
forming a dielectric on the porous body to form an anodized anode;
applying a first slurry to the anodized anode to form a blocking layer wherein the first slurry comprises a first conducting polymer with an median particle size of at least 0.05 μm forming a layer of crosslinker on the blocking layer; and
applying a layer of a second conducting polymer on the layer of crosslinker.
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Citations
97 Claims
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1. A process for forming a solid electrolytic capacitor comprising:
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providing an anode wherein said anode comprises a porous body and an anode wire extending from said porous body; forming a dielectric on said porous body to form an anodized anode; and applying a first slurry to said anodized anode to form a blocking layer wherein said first slurry comprises a first conducting polymer with a median particle size of at least 0.05 μ
m;forming a layer of crosslinker on said blocking layer; and applying a slurry of a second conducting polymer on said layer of crosslinker. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A process for forming a solid electrolytic capacitor comprising:
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providing an anode wherein said anode comprises a porous body and an anode wire extending from said porous body forming a dielectric on said porous body to form an anodized anode; apply a conductive polymer layer onto the dielectric, and forming a layer of crosslinker on said conducting polymer layer; and applying a conducting polymer slurry layer on said layer of crosslinker; wherein after applying said conducting polymer slurry layer said crosslinker concentration is no more than 3500 μ
g per gram of a combination consisting of said anode, said dielectric, and all said conducting polymer. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68)
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69. A process for forming a solid electrolytic capacitor comprising:
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providing an anode wherein said anode comprises a porous body and an anode wire extending from said porous body; forming a dielectric on said porous body to form an anodized anode; forming a layer of crosslinker; applying a layer of conducting polymer wherein said conducting polymer and said crosslinker interact; and washing to remove excess crosslinker. - View Dependent Claims (70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97)
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Specification