3D Simulation of Cell Design Influences on Sodium–Iodine Battery Performance
| Autor: | Felix Gerbig, Hermann Nirschl, Susanne Cernak |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Battery (electricity) Materials science Iodide 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Cathode 0104 chemical sciences Anode law.invention chemistry.chemical_compound Chemical engineering General Energy chemistry law Electrode ddc:660 Fast ion conductor Triiodide 0210 nano-technology |
| Zdroj: | Energy technology, 9 (6), Art.-Nr.: 2000857 |
| ISSN: | 2194-4296 2194-4288 |
| DOI: | 10.1002/ente.202000857 |
| Popis: | This publication deals with the spatially resolved simulation of a sodium–iodine secondary battery. The anode compartment consists of molten sodium and the cathode compartment contains a high‐conductivity metal disc as electrode and an aqueous catholyte. The latter comprises iodide, triiodide, dissolved iodine, and sodium ions. A finite volume approach is proposed to model the transport processes and electrochemical reactions focusing on the positive half‐cell. The study investigates the influences of cathode length, C‐rate, electric conductivity, and molar concentrations on cell performance. It considers solubility limits and predicts diffusion limitation as the major constraint for the operating window. The presented investigations are confined to a simple cathode geometry. However, the results demonstrate the capability of the model to design sodium–iodine half‐cells. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text