Electrochemical Catch Tray for Fuel Particulate Management
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Solution Overview
Problem
In electrochemical cells, particulates or precipitates from the fuel electrode can detach and reduce battery capacity and performance, leading to shortened lifespan and potential electrode shorting due to congestion in flow configuration cells.
Innovation Solution
An electrochemical cell design featuring a catch tray with a catalyst material to oxidize and reduce particulates, preventing congestion and enhancing the reclamation of active material, thereby maintaining capacity and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If particulates are allowed to flow freely in the electrolyte, then the cell can operate without additional components, but particulates will collect and agglomerate causing electrode shorting and reduced performance
Solution Approach 1:
The harmful particulates are extracted from the electrolyte flow by introducing a catch tray that captures and removes them from circulation, preventing their accumulation and harmful effects on electrode performance
Solution Approach 2:
A catch tray is introduced as an intermediary component between the electrodes to intercept and remove particulates from the electrolyte, acting as a mediator that prevents direct contact between harmful particulates and electrodes
2Reliability
If a catch tray is introduced to capture particulates, then electrode shorting is prevented, but the device complexity increases
Solution Approach 1:
The catch tray is designed with porous structure that allows electrolyte to pass through while capturing particulates, providing an effective filtration mechanism without requiring complex sealing or isolation systems
Solution Approach 2:
The catch tray captures and holds particulates that would otherwise be discarded in the electrolyte flow, recovering valuable active material and preventing its loss, thereby justifying the added component through material retention
3Loss of substance
If catalyst material is added to the catch tray, then particulate oxidation and reclamation is enhanced, but manufacturing complexity increases
Solution Approach 1:
The chemical properties of the catch tray are changed by incorporating catalyst material, transforming it from a passive filtration device to an active reclamation system that chemically converts particulates back to useful forms
Solution Approach 2:
The catalyst material converts the harmful oxidized particulates that would normally be waste products into beneficial reduced fuel material that can be reclaimed and reused, turning a loss into a recovery opportunity
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 catch tray effectively manages particulates, reducing congestion and enhancing the electrochemical cell's capacity and performance by promoting oxidation and reduction reactions, thus extending the cell's lifespan and efficiency.
Implementation Method 1
The catch tray comprises a catalyst material for catalyzing, locally at the catch tray, oxidation of particulates of the metal fuel contacting the catch tray, and reduction of cations in the ionically conductive medium
Implementation Method 2
oxidation of particulates of the metal fuel contacting the catch tray
Implementation Method 3
reduction of cations in the ionically conductive medium
Implementation Method 4
an ionically conductive medium for conducting ions between the fuel and oxidant electrodes to support electrochemical reactions at the fuel and oxidant electrodes
Data Source
AI summary
An electrochemical cell includes a fuel electrode configured to operate as an anode to consume a fuel when the fuel electrode and an associated cathode are connected to a load. An ionically conductive medium either present or flowing through the electrochemical cell is configured to conduct ions and participate in electrochemical reactions between the anode and the cathode. The cell further includes a catch tray containing catalyst material to induce the ionization of precipitates of fuel and/or fuel additives that may separate in solid form from the fuel electrode. The catch tray may be positioned to prevent a congestion of the precipitates in the ionically conductive medium, or the waste of electrically disconnected fuel and/or additives.