Modular Conductivity Cell for Membrane Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current devices for measuring conductivity in solid electrolytes are limited in their ability to simulate real operating conditions, particularly in fuel cells and batteries, as they often measure conductivity on the surface rather than through the membrane, leading to ohmic losses and inaccurate results.
Innovation Solution
A modular conductivity cell with two compartments separated by a membrane, capable of operating at varying temperatures and pressures, using blocking or selective electrodes to measure ionic, electronic, and mixed conductivity, allowing gases or liquids to flow through the membrane, and equipped with a heating system for temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conductivity is measured on the surface of the membrane, then measurement simplicity is improved, but measurement precision deteriorates due to ohmic losses
Solution Approach 1:
The invention transitions from surface measurement (2D) to through-membrane measurement (3D) by positioning electrodes on opposite sides of the membrane, forcing current to traverse the entire membrane thickness and eliminating surface-only measurement limitations
2Adaptability or versatility
If a modular cell design with gas/liquid flow is implemented, then simulation of real operating conditions is improved, but device complexity increases
Solution Approach 1:
The cell body serves multiple functions simultaneously: it contains the membrane, provides gas/liquid flow paths, supports electrodes, enables temperature control, and facilitates conductivity measurement, eliminating the need for separate components for each function
Solution Approach 2:
The invention combines the measurement cell, flow channels, temperature control system, and electrode supports into a single integrated modular structure, reducing the number of separate components while maintaining all necessary functionalities
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
This design enables accurate measurement of conductivity through the membrane, reducing ohmic losses and providing more realistic data on charge carrier behavior, suitable for simulating conditions in fuel cells, batteries, and electrochemical sensors.
Implementation Method 1
a heating system formed by electric resistance
Implementation Method 2
an opening for the temperature control thermocouple
Implementation Method 3
measure ionic, electronic and mixed conductivity in polymeric and ceramic membranes
Implementation Method 4
measure ionic, electronic and mixed conductivity in polymeric and ceramic membranes
Data Source
AI summary
This invention consists in a device and a method to determine the ionic, electronic and mixed (electronic-ionic) conductivity in polymer, ceramic and composite (polymeric-ceramic) membranes. The invention device may work from room temperature to 300° C. and the method includes the collection and analysis of electrochemical impedance spectra during cell operation.