Abstract
The tortuosity factor is calculated by solving Laplace's equation of electrostatic potential within the numerically constructed three-dimensional infiltrate network of nanostructured solid oxide cell electrodes. Based on Bruggeman approach, an analytical model is proposed to calculate the tortuosity factor and effective conductivity as a function of infiltration loading. The intrinsic conductivity of infiltrate network can be resolved from its effective conductivity using the analytical model. Good agreement is found between the numerical and analytical models and the experimental data in literature. Parametric study for the effects of backbone microstructure, nanoparticle size and aggregation of infiltrate suggests practical strategies to decrease the tortuosity factor of infiltrate network.
| Original language | English |
|---|---|
| Pages (from-to) | 189-193 |
| Number of pages | 5 |
| Journal | Journal of Power Sources |
| Volume | 269 |
| DOIs | |
| State | Published - 10 Dec 2014 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Electrode
- Infiltration
- Model
- Nanostructure
- Solid oxide cell
- Tortuosity
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