CO2 Electrolysis Cell Flow Path Design
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Solution Overview
Problem
Carbon dioxide electrolysis cells face limitations in achieving high uniformity of raw material fluid supply to electrodes, leading to restricted flow rates and reduced electrode area due to pressure loss and meandering flow paths, which hinders efficient gas discharge and increases production costs.
Innovation Solution
A carbon dioxide electrolysis cell design with a cathode and anode section featuring rectangular-shaped solution flow path forming members, equipped with multiple supply and discharge holes arranged alternately and shifted, allowing for uniform fluid distribution and increased electrode area without extending flow path length, thereby enhancing flow uniformity and flow rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a long meandering flow path is used to increase electrode area, then the electrode area increases, but the pressure loss increases and flow rate is limited
Solution Approach 1:
The flow path configuration changes from a one-dimensional meandering path to a two-dimensional distributed pattern. Multiple supply holes and discharge holes are arranged in specific patterns on the flow path plate, allowing the electrolyte to flow through multiple parallel paths simultaneously. This dimensional change enables covering a larger electrode area without extending the flow path length, thereby reducing pressure loss while maintaining high flow rate.
2Productivity
If the flow rate of electrolyte is increased to improve gas discharge, then gas discharge efficiency improves, but the flow path length must be extended which limits electrode area
Solution Approach 1:
The flow path is segmented into multiple independent flow channels through the strategic arrangement of multiple supply holes and discharge holes. Instead of using a single long meandering path, the electrolyte is distributed through multiple shorter parallel paths. This segmentation allows higher flow rates to be achieved without extending the overall flow path length, enabling improved gas discharge efficiency while maintaining compact electrode area.
3Ease of manufacture
If the electrode area is increased to reduce production cost, then cost efficiency improves, but the flow path length must be extended which causes pressure loss
Solution Approach 1:
The invention transitions from a one-dimensional linear flow path to a two-dimensional distributed flow path pattern. By arranging multiple supply holes and discharge holes in specific patterns on the flow path plate, the system achieves larger effective electrode area without proportionally increasing flow path length. This dimensional approach reduces pressure loss while maintaining cost efficiency through increased electrode area.
4Area of stationary object
If a meandering flow path is used to cover electrode area, then electrode coverage increases, but the flow uniformity decreases and pressure loss increases
Solution Approach 1:
The flow path is divided into multiple independent flow channels defined by the arrangement of supply holes and discharge holes. This segmentation creates multiple parallel flow paths that distribute electrolyte more uniformly across the electrode surface. Each segment operates independently, preventing the flow uniformity degradation that occurs in long meandering paths where flow distribution becomes increasingly non-uniform along the path length.
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 ensures highly uniform raw material fluid supply to electrodes, increasing the flow rate and electrode area while minimizing pressure loss, thus improving the economic efficiency and gas discharge efficiency of the carbon dioxide electrolysis process.
Implementation Method 1
electrochemically reduces it
Implementation Method 2
a cathode-side solution flow path for causing a cathode-side solution to flow, an anode-side solution flow path for causing an anode-side solution to flow
Data Source
AI summary
A carbon dioxide electrolysis cell of the present invention is a raw material solution supply type carbon dioxide electrolysis cell, including a cathode section, an anode section and a diaphragm, wherein, at one end, which is a short side of a cathode-side solution flow path forming member, a plurality of cathode-side solution supply holes and a plurality of anode-side solution supply holes are provided alternately, and at the other end, a plurality of cathode-side solution discharge holes and a plurality of anode-side solution discharge holes are provided alternately, wherein, at one end of an anode-side solution flow path forming member, a plurality of anode-side solution supply holes are provided, and at the other end, a plurality of anode-side solution discharge holes are provided, and wherein the plurality of cathode-side solution supply holes and the plurality of anode-side solution supply holes are arranged alternately, and the plurality of cathode-side solution discharge holes and the plurality of anode-side solution discharge holes are arranged alternately.