Gel Electrolyte Composition for Liquid Discharge Electrode Coating
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Solution Overview
Problem
The difficulty in forming a gel electrolyte film using the liquid discharge method due to the high viscosity of the liquid composition used for gel electrolyte film formation.
Innovation Solution
A liquid composition containing a radical polymerizable composition with an ethylenically unsaturated compound having an oxyethylene group and a polymerization inhibitor, which includes specific infrared absorption bands that attenuate upon curing, allowing for the formation of a gel electrolyte film with improved reactivity and safety features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a liquid composition with high viscosity is used to form a gel electrolyte film, then the film formation capability is improved, but the liquid discharge method becomes difficult to apply
Solution Approach 1:
The patent modifies the chemical composition parameters of the liquid composition by incorporating specific radical polymerizable compounds with controlled reactivity. This allows the composition to maintain high viscosity for good film formation while enabling successful discharge through the liquid discharge head by adjusting the balance between viscosity and polymerization reactivity
Solution Approach 2:
The patent applies a polymerization inhibitor to the liquid composition before discharge to prevent premature polymerization. This preliminary action maintains the liquid state and low viscosity during the discharge process, allowing the liquid to be successfully deposited through the liquid discharge head before curing forms the final gel electrolyte film
2Manufacturing precision
If the liquid composition is discharged as fine droplets, then the manufacturing precision is improved, but the high viscosity prevents proper droplet formation
Solution Approach 1:
The patent adjusts the viscosity and surface tension parameters of the liquid composition by selecting specific polymerizable compounds and additives. This parameter optimization enables the high-viscosity composition to still form fine droplets during liquid discharge while maintaining the required film formation capability after curing
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
Enables the successful formation of a gel electrolyte film through the liquid discharge method, enhancing the safety and performance of electrochemical devices by reducing the risk of internal short circuits and improving ionic conductivity.
Implementation Method 1
the liquid composition contains a radical polymerizable composition containing an ethylenically unsaturated compound having an oxyethylene group and a polymerization inhibitor
Implementation Method 2
In the piezo method, the discharge amount of the liquid composition can be accurately controlled by controlling the voltage
Implementation Method 3
Examples of the method for discharging droplets of the liquid discharge head include a piezo method, a thermal method
Data Source
AI summary
A liquid composition for manufacturing electrodes contains a radical polymerizable composition containing an ethylenically unsaturated compound having an oxyethylene group and a polymerization inhibitor, wherein infrared absorption spectra before curing the radical polymerizable composition include a first absorption band in a range of 1640 to 1620 cm−1, a second absorption band in a range of 1430 to 1400 cm−1, and a third absorption band in a range of 820 to 800 cm−1, and the second absorption band has a greater absorption intensity than the third absorption band, and the third absorption band has a greater absorption intensity than the first absorption band, andwherein the infrared absorption spectra after curing the radical polymerizable composition are substantially free of the first absorption band, the second absorption band, and third absorption band.