| Autor: |
Weidl, R., Schulz, M., Hofacker, M., Dohndorf, H., Stelter, M. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2016, Vol. 1765 Issue 1, p1-7, 7p, 2 Color Photographs, 1 Black and White Photograph, 1 Diagram, 3 Graphs |
| Abstrakt: |
Na/NiCl2 batteries represent a high-energy-density battery concept based on abundant, low cost-materials. The current production process of the solid state electrolyte is the driving cost factor in this field. IKTS develops improved technologies for the highly efficient production of this price-determining core component - the ceramic sodium β- alumina electrolyte. Furthermore, by simplifying the cell design regarding the manufacturing technology, the aimed target costs amount to below 200 EUR/kWh at cell level. Starting with a lab-scale screening of powder synthesis, several routes for electrolyte shaping are under development. Boehmite based β-aluminas reached ionic conductivities of about 0.241 S/cm at 300°C with a highly dense microstructure and a β"-phase content of > 97%. The powder processing was transferred to pilot scale and different shaping technologies were evaluated. Electrolyte tubes with a length of 30 cm were manufactured by isostatic pressing. For the stiff plastic extrusion the preparation of the mass was developed. Densities of about 96% after sintering were achieved this way. So far, different cell designs have been realized. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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