Conductive Micro-Channel Structure for Electrochemical Flow
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Solution Overview
Problem
There is a need for inexpensive, efficient, and high-throughput methods and devices for enabling electrochemical reactions between an electrolyte and an electrode, particularly in applications like water desalination, which current technologies have not adequately addressed in terms of energy efficiency and manufacturing cost.
Innovation Solution
A conductive micro-channel structure is developed, comprising a layer with electrode portions and fluid micro-channels that intersect with a conductor micro-channel, allowing for increased flow rates and improved energy efficiency, while reducing manufacturing costs through a scalable process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional electrochemical reaction devices are used, then electrochemical reactions can occur between electrolyte and electrode, but the flow rate is limited and energy efficiency is poor
Solution Approach 1:
The electrode is divided into multiple segments with different potentials along its length, creating multiple electrochemical reaction zones. This segmentation allows the electrolyte to undergo sequential reactions as it flows through the device, increasing both flow rate capability and energy efficiency by distributing the electrochemical transformation across multiple stages rather than a single zone.
Solution Approach 2:
The invention transitions from a conventional two-dimensional electrode surface to a three-dimensional structure where the electrode extends through the fluid flow path. The electrode is positioned to engage the electrolyte flow in multiple dimensions, creating a volumetric interaction rather than just surface contact, thereby enhancing mass transfer and reaction efficiency at higher flow rates.
2Ease of manufacture
If conventional electrochemical reaction devices are used, then electrochemical reactions can occur, but manufacturing cost is high
Solution Approach 1:
The electrode structure serves multiple functions simultaneously: it acts as both the reaction surface and the flow distribution element. The same electrode components that enable electrochemical reactions also guide and distribute the electrolyte flow, eliminating the need for separate flow distributors or complex channel structures, thereby reducing manufacturing cost while maintaining high throughput capability.
Solution Approach 2:
The invention employs electrodes with varying potential parameters along their length, creating zones of different electrochemical activity. This parameter variation allows a single electrode structure to handle multiple reaction stages, increasing throughput without requiring multiple separate components, thus reducing manufacturing complexity and cost.
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 structure enables enhanced electrochemical reactions with increased flow rates and improved energy efficiency, making it suitable for cost-effective applications such as water desalination.
Implementation Method 1
a conductor micro-channel including a solid conductor in the conductor micro-channel, the solid conductor electrically conductive, electrically connected to the second portion of the electrode
Implementation Method 2
Electrochemical reactions between an electrolyte (an ionic conductor) and an electrode occur when an externally provided current passes between the electrode and the electrolyte
Data Source
AI summary
A conductive micro-channel structure includes a layer having layer edges and an electrode having first and second portions formed in or under the layer. One or more fluid micro-channels are formed in the layer, expose the first portion of the electrode, and extend to a layer edge to form a fluid port. A conductor micro-channel includes a solid conductor in the conductor micro-channel. The solid conductor is electrically conductive, is electrically connected to the second portion of the electrode, and extends from the second portion to a layer edge to form a conductor port.