Conductive Polymer Electrolyte for High Static Capacitance
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Solution Overview
Problem
Conductive polymer-based solid electrolytic capacitors have lower static capacitance compared to conventional aqueous electrolytic capacitors, limiting their performance.
Innovation Solution
A conductive polymer mixture is synthesized using a monomer of a conjugated polymer, an oxidant, and a polyether with a nitrogen-containing compound or polymer, which are mixed and reacted to form a conductive polymer electrolyte, enhancing static capacitance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductive polymer is used as electrolyte, then impedance is reduced and thermal stability is improved, but static capacitance becomes lower
Solution Approach 1:
The patent uses composite materials by combining conductive polymer with polyether and nitrogen-containing compounds to create a new electrolyte material that exhibits both the thermal stability of conductive polymer and the high static capacitance characteristic of aqueous electrolytes, thereby resolving the contradiction between reliability and capacitance quantity
Solution Approach 2:
The patent changes the chemical composition parameters of the electrolyte by incorporating specific polyether chains and nitrogen-containing compounds in optimized ratios, which modifies the electrolyte's physical and chemical properties to achieve both high thermal stability and high static capacitance simultaneously
2Reliability
If conductive polymer is used as electrolyte, then impedance is reduced, but static capacitance becomes lower
Solution Approach 1:
The patent creates a composite electrolyte system that combines the low-impedance advantage of conductive polymer with the high-capacitance property of polyether-nitrogen compounds, achieving both low impedance and high static capacitance in the same electrolyte formulation
Solution Approach 2:
The patent develops a multi-functional electrolyte that simultaneously provides the functions of low impedance (from conductive polymer) and high static capacitance (from polyether-nitrogen compounds), making the electrolyte capable of performing multiple functions that were previously achieved by different electrolyte types
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 combination of polyether and nitrogen-containing compounds in the oxidant mixture significantly increases the static capacitance of solid electrolytic capacitors, achieving synergistic effects that improve their performance.
Implementation Method 1
the monomer of the conjugated polymer is reacted with the oxidant in a condition, so as to form the conjugated polymer
Data Source
AI summary
An electrolyte mixture for an electrolytic capacitor is provided. The electrolyte mixture includes a conjugated polymer, a polyether and a nitrogen-containing compound, or includes the conjugated polymer, the polyether and a nitrogen-containing polymer, or includes the conjugated polymer and a polyether with nitrogen-containing functional groups. The electrolyte mixture provides a very high static capacitance for an electrolytic capacitor having the same.