Autogenous electrolyte, non-pyrolytically produced solid capacitor structure
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United States of America Patent
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Mar 17, 1998
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N/A
app pub date -
Sep 27, 1995
filing date -
Sep 27, 1995
priority date (Note) -
Expired
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Abstract
A solid electrolytic capacitor having a solid electrolyte comprising manganese dioxide dispersed in an aromatic polyamide capable of further cure to form polyimide linkages, the solid electrolyte being disposed between a first electrode made of valve metal covered by an anodic oxide film and a second electrode opposite the first electrode. The electrolyte autogenously produces water, oxygen, and hydroxyl groups which act as healing substances and is not itself produced pyrolytically. Reduction of the manganese dioxide and the water molecules released by formation of imide linkages result in substantially improved self-healing of anodic dielectric layer defects.
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