Solid Electrolyte Layer Particle Arrangement for Ion Conductivity
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Solution Overview
Problem
Conventional fuel cell stack devices have limitations in enhancing power generation performance.
Innovation Solution
A solid electrolyte layer comprising a plurality of electrolytic particles, including first and second particles, is used to improve ion conductivity and alleviate stress, thereby enhancing the performance of electrochemical cells and modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional solid electrolyte layers are used in fuel cell stack devices, then the basic power generation function is maintained, but the power generation performance cannot be enhanced
Solution Approach 1:
The patent applies local quality by creating distinct particle regions within the solid electrolyte layer: first particles that contact both surfaces for ion conduction, and second particles that contact only one surface for stress relief. This spatial differentiation of particle functions optimizes both power generation and durability locally within the layer structure.
Solution Approach 2:
The patent uses composite materials by combining oxide-containing electrolytic particles with specific structural characteristics. The composite structure of different particle types (first and second particles) within the solid electrolyte layer enhances both ion conductivity and stress resistance, thereby improving overall power generation performance.
2Reliability
If the solid electrolyte layer uses uniform particle distribution, then manufacturing is simplified, but ion conductivity and stress resistance are compromised
Solution Approach 1:
The patent segments the electrolytic particles into two functional groups: first particles contacting both surfaces for ion conduction pathways, and second particles contacting one surface for stress distribution. This segmentation creates optimized ion conduction paths while simplifying the manufacturing process by focusing on particle selection rather than complex arrangement.
Solution Approach 2:
The patent changes the structural parameters of electrolytic particles by specifying their contact characteristics with the layer surfaces. This parameter-based classification (contacting both surfaces vs. one surface) provides a clear manufacturing criterion that balances performance optimization with ease of production.
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 configuration of the solid electrolyte layer with specific particle arrangements improves ion conductivity and durability, leading to enhanced power generation performance in electrochemical cells and modules.
Implementation Method 1
a solid electrolyte layer according to an aspect of the embodiment has a first surface and a second surface facing each other in a thickness direction, and has a plurality of electrolytic particles containing an oxide
Data Source
Figure 1A~1B
Figure 1C
Figure 2A~2B
AI summary
A solid electrolyte layer (6) includes a first surface (6a) and a second surface (6b) facing each other in a thickness direction, and has a plurality of electrolytic particles (61) containing an oxide. The plurality of electrolytic particles (61) includes at least one first particle (61a) and a second particle (61b). The at least one first particle (61a) is in contact with both the first surface (6a) and the second surface (6b). The second particle (61b) is in contact with either one of the first surface (6a) and the second surface (6b) and is in no contact with the other.