Diblock Polymer Electrode Composition for Sensor Signal Intensity
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Solution Overview
Problem
Existing sensors with polymer transducers struggle to enhance signal intensity for accurate deformation and displacement measurements, limiting their versatility and measurement accuracy.
Innovation Solution
A composition comprising a diblock polymer with an aromatic vinyl compound and an amorphous polymer block, combined with a hydrocarbon solvent, an organic solvent, and a conductive filler, is used to produce electrode films that increase signal intensity when sandwiching a polymer electrolyte film between them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional electrode-forming paste is used to produce electrode films, then the sensor can be manufactured with basic functionality, but the signal intensity output upon deformation is insufficient
Solution Approach 1:
The patent uses a composite material system consisting of diblock polymer (combining aromatic vinyl compound block for ion conduction and amorphous polymer block for flexibility), hydrocarbon solvent, organic solvent, and conductive filler. This composite approach enhances signal intensity while maintaining manufacturability through solution processing and film formation.
Solution Approach 2:
The patent modifies the chemical composition parameters of the electrode film by introducing ion-conducting groups to the aromatic vinyl compound polymer block and selecting specific solvents and conductive fillers. These parameter changes directly improve signal intensity without fundamentally changing the manufacturing process.
2Adaptability or versatility
If the sensor structure is simplified for ease of manufacture, then production becomes easier, but measurement accuracy and versatility are limited
Solution Approach 1:
The patent applies local quality by introducing ion-conducting groups specifically to the aromatic vinyl compound polymer block while keeping the amorphous polymer block simple. This localized functional enhancement improves measurement accuracy without increasing overall structural complexity.
Solution Approach 2:
The diblock polymer structure provides multi-functionality: the aromatic vinyl compound block contributes to ion conduction and signal generation, while the amorphous polymer block provides flexibility and processability. This allows a single material system to achieve both high measurement accuracy and ease of manufacture.
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 composition effectively enhances the signal intensity of sensors, improving their measurement accuracy and versatility by forming high-performance electrode films suitable for deformation and displacement detection.
Implementation Method 1
a diblock polymer (A) having a structure in which, in a diblock polymer (A 0 ) having no ion-conducting group composed of a polymer block (S 0 ) containing a structural unit derived from an aromatic vinyl compound having a number average molecular weight of not less than 20,000... an ion-conducting group(s) is/are introduced to the polymer block (S 0 )
Implementation Method 2
a conductive filler (D)... Sensors formed by sandwiching a polymer electrolyte film between two sheets of such an electrode film can output a high signal intensity
Data Source
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AI summary
The present invention aims to provide a composition to be used for production of electrode films contained in a sensor formed by sandwiching a polymer electrolyte film between two electrode films, which composition can increase the intensity of the electric signal that can be output by the sensor. The composition comprises: a diblock polymer (A) having a structure in which, in a diblock polymer (A0) having no ion-conducting group composed of a polymer block (S0) containing a structural unit derived from an aromatic vinyl compound having a number average molecular weight of not less than 20,000 and an amorphous polymer block (T) containing a structural unit derived from an unsaturated aliphatic hydrocarbon, an ion-conducting group(s) is/are introduced to the polymer block (S0); a hydrocarbon solvent (B); an organic solvent (C) having at least one functional group selected from the group consisting of hydroxyl, carbonyl, alkoxycarbonyl, and amide; and a conductive filler (D).