Polymer Electrolyte with Ionic Liquid for Organic Battery Stability
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Solution Overview
Problem
Existing fully organic batteries face challenges with low capacity and long production times due to the use of polymer electrolytes, particularly in batteries with partly organic electrodes, and there is a need for a printable organic charge storage unit with high capacity and rapid production.
Innovation Solution
A printable polymer electrolyte is developed using a polymer matrix obtained by polymerizing acrylate and methacrylate compounds with benzyl and poly(ethylene glycol) methyl ether side chains, immobilizing an ionic liquid such as 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, which enhances ionic conductivity and mechanical stability, allowing for rapid production and high capacity in organic batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If polymer electrolytes are used in fully organic batteries, then mechanical stability is improved, but production time increases and capacity decreases
Solution Approach 1:
The patent changes the chemical composition parameters of the polymer electrolyte by incorporating specific side chains (benzyl and poly(ethylene glycol) methyl ether) into the polymer matrix. This compositional modification enables the electrolyte to achieve both mechanical stability and rapid production characteristics, resolving the contradiction between strength and productivity
Solution Approach 2:
The patent creates a composite polymer electrolyte system combining multiple components: the polymer matrix with specific side chains, ionic liquids, and conductive salts. This composite structure achieves synergistic effects where the polymer provides mechanical stability while the ionic liquid and conductive salt components enable fast charge transport and rapid production, thus resolving the contradiction between mechanical strength and productivity
2Strength
If polymer electrolytes are used in fully organic batteries, then mechanical stability is improved, but capacity decreases
Solution Approach 1:
The patent modifies the chemical parameters of the polymer electrolyte by incorporating ionic liquids and conductive salts into the polymer matrix. This changes the ionic conductivity and charge storage capacity of the electrolyte, enabling it to provide both mechanical stability and high battery capacity simultaneously
Solution Approach 2:
The patent develops a composite polymer electrolyte comprising a polymer matrix with benzyl and poly(ethylene glycol) methyl ether side chains, combined with ionic liquids and conductive salts. The polymer component provides mechanical stability while the ionic liquid and conductive salt components enhance ionic conductivity and charge capacity, resolving the contradiction between strength and quantity of substance
3Reliability
If conventional liquid electrolytes are used, then ionic conductivity is improved, but safety decreases due to combustibility and escape risk
Solution Approach 1:
The patent changes the physical state parameter of the electrolyte from liquid to solid polymer form. This phase change eliminates the escape risk inherent in liquid electrolytes while maintaining high ionic conductivity through the incorporation of ionic liquids and conductive salts within the polymer matrix, thus resolving the contradiction between reliability and harmful factors
Solution Approach 2:
The patent converts the typically harmful combination of polymer matrices and ionic liquids into a beneficial solid polymer electrolyte system. By carefully selecting and combining components, the patent transforms what could be a problematic mixture into a safe, high-performance electrolyte that provides both mechanical stability and high ionic conductivity while eliminating combustibility and escape risks
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 solution enables the production of organic batteries with improved capacity and reduced production time, as the polymer electrolyte provides efficient charge transport and mechanical stability, addressing the limitations of existing polymer electrolytes in fully organic battery applications.
Implementation Method 1
The electrolyte has the function of balancing charges that arise at the electrodes by transport of ions. Therefore, high ionic conductivities are required to reduce the cell resistance.
Implementation Method 2
immobilizing an ionic liquid such as 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, which enhances ionic conductivity and mechanical stability
Implementation Method 3
solid electrolytes, given adequate mechanical stability, can additionally more efficiently assume the function of the separator, which has the function of preventing direct contact between the two electrodes and hence a short circuit or leakage currents
Data Source
AI summary
A process can be used to produce a charge storage unit, especially a secondary battery, the electrodes of which contain an organic redox-active polymer, and which includes a polymeric solid electrolyte. The solid electrolyte is obtained by polymerizing from mixtures of acrylates with methacrylates in the presence of at least one ionic liquid, which imparts advantageous properties to the charge storage unit.