Fuel Cell Bipolar Plate With Electromagnetic Reactant Acceleration
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Solution Overview
Problem
Existing fuel cells lack rapid response mechanisms to vary power output, particularly in critical situations like aviation applications, necessitating additional control measures within the fuel cell.
Innovation Solution
Incorporating electrical conductors within the bipolar plate to generate an electromagnetic field that accelerates reactants towards the electrode, enhancing power control and enabling time-limited peak power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional fuel cell design without internal electromagnetic control is used, then device complexity is low, but power response speed is slow
Solution Approach 1:
The patent merges the electromagnetic control function directly into the bipolar plate structure by embedding electrical conductors within the plate body. This integration allows the bipolar plate to simultaneously perform its traditional functions (gas distribution, electrical connection, structural support) and the new function of generating electromagnetic fields to accelerate reactants, thereby improving power response speed without adding separate external control devices
Solution Approach 2:
The bipolar plate is transformed into a multi-functional component that not only distributes gases, provides electrical connections, and offers structural support, but also generates electromagnetic fields through embedded conductors to actively control reactant flow and power output. This multi-functionality resolves the contradiction by adding control capability while utilizing existing structural elements
2Adaptability or versatility
If electrical conductors are embedded in the bipolar plate to generate electromagnetic fields, then power control capability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies local quality by embedding electrical conductors only in specific regions of the bipolar plate where electromagnetic field generation is most effective for accelerating reactants. The conductors are positioned strategically within the plate body rather than uniformly throughout, allowing power control functionality to be added locally without requiring complete redesign of the entire manufacturing process
Solution Approach 2:
The bipolar plate becomes a composite structure combining the plate material (graphite, metal, or composite) with embedded electrical conductors. This composite approach allows the integration of multiple functionalities (structural support, gas distribution, electrical conduction, electromagnetic field generation) within a single manufactured component, addressing manufacturing complexity by treating the conductors as an integrated feature rather than a separate assembly step
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 electromagnetic field improves power control and enables rapid power adjustments, particularly beneficial in critical situations, by increasing reactant availability and distribution efficiency.
Implementation Method 1
when a voltage is applied to the electrical conductor, the electrical conductor forms an electromagnetic field, the electromagnetic field being intended to accelerate the reactant at least partly in the direction of the electrode
Data Source
AI summary
A bipolar plate for a fuel cell for generation of electrical power has a bipolar plate body having a first surface. The bipolar plate body has at least one gas flow channel on the first surface, the gas flow channel defining a first gas flow channel side wall and an opposite second gas flow channel side wall, and the gas flow channel running in a first direction to expose the electrode to the reactant. The bipolar plate also has at least one electrical conductor to run at least partly parallel to the first direction within the bipolar plate body behind the first gas flow channel side wall and/or the second gas flow channel side wall, such that, when a voltage is applied to the electrical conductor, the electrical conductor forms an electromagnetic field, the electromagnetic field to accelerate the reactant at least partly in the direction of the electrode.