Electrolytic Capacitor Solid Electrolyte Layer Organic Alkali
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Solution Overview
Problem
Solid electrolyte layers containing self-doped conductive polymers in electrolytic capacitors tend to increase equivalent series resistance (ESR) and decrease withstand voltage characteristics, especially in high-temperature environments, due to corrosion and morphology changes.
Innovation Solution
Incorporating an organic alkali into the solid electrolyte layer with a self-doped conductive polymer helps maintain low ESR and high withstand voltage characteristics by suppressing corrosion and morphology changes, even at elevated temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a solid electrolyte layer containing a self-doped conductive polymer is formed, then the capacitance increases, but corrosion occurs and morphology changes in high-temperature environments
Solution Approach 1:
The organic alkali compound serves as a protective intermediary that prevents direct corrosive interaction between the self-doped conductive polymer and the dielectric layer. This intermediary layer stabilizes the morphology of both the dielectric layer and solid electrolyte layer, preventing degradation even when the capacitance is enhanced by the conductive polymer
Solution Approach 2:
The inherently corrosive nature of self-doped conductive polymers is converted into a beneficial effect by adding organic alkali compounds. The organic alkali neutralizes the corrosiveness while maintaining the high capacitance properties, transforming a harmful characteristic into a stable, high-performance electrolyte system
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The use of organic alkalis in the solid electrolyte layer effectively reduces ESR and maintains high withstand voltage characteristics in electrolytic capacitors exposed to high temperatures, ensuring stable performance.
Implementation Method 1
the solid electrolyte layer includes a self-doped conductive polymer and an organic alkali... suppressing corrosion and morphology changes
Data Source
AI summary
An electrolytic capacitor includes an anode body, a dielectric layer disposed on the anode body, and a solid electrolyte layer disposed on the dielectric layer. The solid electrolyte layer includes a self-doped conductive polymer and an organic alkali.