Hollow Electrode Test Cell for Miniaturized Electrical Analysis
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Solution Overview
Problem
Existing electrical and electrochemical testing devices require large volumes of materials, are costly, and time-consuming, with limited ability to observe chemical reactions due to their large scale.
Innovation Solution
A device utilizing elongated hollow cylindrical electrodes that also serve to transport reagents into a small test cell ≤10 cc, allowing for adjustable and measurable electrode distance, self-sealing, and integration with electrical power and measurement equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large-scale test cells are used for electrical and electrochemical testing, then the influence of temperature changes, vibrations, and electrode surface effects is minimized, but the amount of material required increases significantly and observation of chemical reactions becomes difficult
Solution Approach 1:
The test cell is segmented into a small volume chamber (≤10 cc) that isolates the testing region, allowing stable electrical and electrochemical measurements with minimal material. The segmentation enables focused observation of chemical reactions while maintaining testing reliability through controlled geometry and positioning of electrodes within the small volume.
2Volume of moving object
If miniaturization of high conductor densities is achieved through MEMS techniques, then the test cell size is reduced, but the manufacturing complexity and cost increase significantly
Solution Approach 1:
The electrode supports and spacing mechanisms are merged into a single integrated structure that provides both mechanical support and precise electrode positioning. This consolidation simplifies manufacturing by reducing the number of separate components and assembly steps, while still achieving the required miniaturization and conductor density for the test cell.
3Power
If traditional non-hollow electrodes are used, then electrical conduction is effective, but reagent transport into the test cell requires separate complex delivery systems
Solution Approach 1:
The electrodes are designed as hollow cylindrical structures that simultaneously perform multiple functions: conducting electricity for electrical and electrochemical testing, providing structural support within the test cell, and serving as reagent delivery channels. This multi-functionality eliminates the need for separate reagent delivery systems, reducing overall device complexity while maintaining effective electrical conduction.
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 efficient testing of electrical and electrochemical properties with reduced material use, lower costs, faster analysis times, and convenient observation of chemical reactions.
Implementation Method 1
elongated hollow cylindrical electrodes that also transport reagents into a small test cell
Implementation Method 2
electrodes are any material that is a good conductor of electricity... properties such as conductivity, dielectric strengths, surface and volume resistivity, capacitance, breakdown voltage are tested
Implementation Method 3
In electrochemical cells, electrodes transport produced electrons from one half-cell (i.e., cathode) to another (i.e., anode), which results in the production of an electrical charge
Data Source
AI summary
Described is a device for testing electrical and/or electrochemical properties for a ≤10 cubic centimeters (cc) test cell. The device is comprised of two opposing electrodes in a test cell, wherein one or both electrodes are elongated hollow cylindrical tube(s) such that the distance between the two electrodes is adjustable and measurable. Reagents including solid in powder form, liquid, and gas are optionally introduced into the test cell through the electrode(s) that are connected to a reagent container. The test cell is a transparent insulating material such as glass, quartz, plastic, or polymer; its configuration is selected from a group consisting of an open hemicylindrical channel, a sealable cylindrical tube, or a sealable box test cell. When electrical power and/or electrical measurement equipment is attached between the electrodes, electrical and electrochemical properties are measured whilst chemical reactions are observed.