Conductive Polymer Formulation for Solid Capacitor Voltage Resistance
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Solution Overview
Problem
Conventional liquid capacitors face issues with low conductivity, poor high-temperature resistance, and risk of capacitor rupture due to hydrogen accumulation, while solid capacitors with existing conductive polymers suffer from low degree of polymerization leading to poor physical properties and limited voltage resistance.
Innovation Solution
A conductive material formulation comprising a conductive polymer with a high degree of polymerization and an insulation material, where the conductive polymer is formed through a process involving supersonic vibration to achieve nanometer-sized particles for improved penetration and adhesion, enhancing the solid capacitor's voltage resistance and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional liquid electrolyte is used in capacitors, then high capacity is achieved, but low conductivity and poor high temperature resistance occur
Solution Approach 1:
The patent changes the physical state parameter of the electrolyte from liquid to solid form, specifically using conductive polymer electrolytes. This parameter change resolves the contradiction by providing both high capacity (through adequate ionic conductivity) and high temperature resistance (through the inherent thermal stability of solid polymers that do not evaporate or decompose like liquid electrolytes)
Solution Approach 2:
The patent employs composite material structures combining conductive polymers with other materials to create solid electrolytes that maintain high ionic conductivity while providing enhanced thermal stability and mechanical strength, thereby achieving both high capacity and high temperature resistance simultaneously
2Quantity of substance
If conventional liquid electrolyte is used in capacitors, then high capacity is achieved, but capacitor rupture risk increases due to hydrogen accumulation
Solution Approach 1:
The patent changes the electrolyte state from liquid to solid, eliminating the hydrogen accumulation problem inherent in liquid electrolyte systems. Solid conductive polymer electrolytes do not generate hydrogen during operation, thereby removing the rupture risk while maintaining high capacity through adequate ionic conductivity
3Ease of manufacture
If conductive polymer with low degree of polymerization is used in solid capacitors, then ease of manufacture is improved, but voltage resistance and physical properties deteriorate
Solution Approach 1:
The patent changes the molecular weight parameter of the conductive polymer by using high molecular weight polymers with high degree of polymerization. This parameter change improves voltage resistance and physical properties (mechanical strength, stability) while maintaining ease of manufacture through solution processing methods that can handle high molecular weight polymers
4Reliability
If conductive polymer is used to replace liquid electrolyte, then high conductivity and high temperature resistance are achieved, but penetration into micropores and adhesion are reduced
Solution Approach 1:
The patent changes the molecular weight and chain architecture parameters of the conductive polymer to optimize the balance between conductivity and penetration capability. By carefully selecting polymer parameters and processing conditions, the patent achieves sufficient penetration into micropores and good adhesion while maintaining high conductivity
Solution Approach 2:
The patent uses composite material approaches combining conductive polymers with additives or blending with other materials to enhance penetration and adhesion properties while preserving the high conductivity characteristic of conductive polymers
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 formulation results in a solid capacitor with high withstand voltage, improved insulation, and increased capacity, capable of operating in higher voltage environments, addressing the limitations of both liquid and existing solid capacitors.
Implementation Method 1
the conductive polymer is formed through a process involving supersonic vibration to achieve nanometer-sized particles for improved penetration and adhesion
Data Source
AI summary
The invention pertains to a conductive material formulation comprising:(a) a conductive polymer material; and(b) an insulation material,wherein the conductive polymer material is derived from a conductive polymer and a polyanion and has a weight average molecular weight ranging from 3,000 to 30,000; andwherein the (b) insulation material is present in an amount of 0.01 part to 200 parts by weight based on 100 parts by weight of the (a) conductive polymer material. The conductive material formulation according to the invention is useful for the preparation of solid capacitors.