Winding Capacitor Assembly with Composite Solid Electrolyte
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Solution Overview
Problem
Conventional solid electrolytic capacitors have a loose structure due to low solid content in their dispersion system, making them prone to deformation under external forces and compromising their structural and electrical performance.
Innovation Solution
A winding type capacitor assembly is developed with a conductive polymer dispersed sol and an electrolyte filler, where the conductive polymer dispersed sol is disposed between positive and negative conductive foils and isolation elements, forming a composite solid electrolyte with enhanced structural strength and electrical characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional solid electrolytes with low solid content are used, then the capacitor can be manufactured easily, but the structural strength decreases and the capacitor becomes easily deformed
Solution Approach 1:
The patent uses a composite solid electrolyte consisting of conductive polymer dispersed sol and inorganic filler particles. This composite structure combines the ease of processing of polymers with the high strength and stability of inorganic fillers, resolving the contradiction between ease of manufacture and structural strength.
Solution Approach 2:
The patent changes the solid content parameter of the electrolyte by incorporating inorganic filler particles with high solid content into the conductive polymer dispersed sol. This parameter change increases the overall solid content from the low levels in conventional electrolytes to higher levels that provide adequate structural strength while maintaining manufacturability.
2Device complexity
If conventional solid electrolytes with low solid content are used, then the manufacturing process is simple, but the capacitor structure becomes loose and prone to deformation
Solution Approach 1:
The composite electrolyte system combines conductive polymer dispersed sol with inorganic filler particles, creating a structurally stable composition that resists deformation while maintaining a relatively simple manufacturing process. The inorganic filler provides structural rigidity to the otherwise soft polymer matrix.
Solution Approach 2:
By increasing the solid content parameter through the addition of inorganic fillers, the patent transforms the electrolyte from a loose, deformation-prone structure to a stable, rigid composite that maintains its composition integrity under external forces.
3Strength
If higher solid content electrolyte is used to improve structural strength, then the structural integrity improves, but the manufacturing complexity increases
Solution Approach 1:
The patent selects inorganic filler particles that can be easily incorporated into the conductive polymer dispersed sol without requiring complex manufacturing processes. The filler particles are designed to disperse well in the polymer matrix, maintaining ease of manufacture while achieving high structural strength.
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 composite solid electrolyte improves the structural integrity and electrical properties of the capacitor, providing a mesh-like connection with high conductivity and strength, suitable for high-voltage applications while minimizing leakage current issues.
Implementation Method 1
a conductive polymer dispersed sol and an electrolyte filler are disposed between the positive conductive foil, the negative conductive foil, and the isolation element
Implementation Method 2
The electrolyte filler is selected from at least one of a conductive composition synthesized by a chemical polymerization method and a resin-blended conductive particle
Implementation Method 3
conductive polymers have been widely used as cathode materials for solid electrolytic capacitors based on their high electrical conductivity
Data Source
AI summary
A winding type capacitor assembly with enhanced structural strength and a manufacturing method thereof are provided. The winding type capacitor assembly includes a positive conductive foil, a negative conductive foil, and at least one isolation element. The isolation element is disposed between the positive conductive foil and the negative conductive foil. A conductive polymer dispersed sol and an electrolyte filler are disposed between the positive conductive foil, the negative conductive foil, and the isolation element. The electrolyte filler is at least one selected from one of a conductive composition synthesized by a chemical polymerization method and a resin-blended conductive particle. The winding type capacitor assembly has enhanced structural strength through the use of the electrolyte filler.