Development of sodium/sulfur-cells
Abstract
The state of the development of Na/S-cells at Brown Boveri is described. The solid electrolyte used is magnesia doped beta-alumina having an electrical conductivity of 0.2-0.3/(ohm-cm) at 300 C. In Na/Na-cells tubular electrolytes have attained life times of more than 3.500 Ah/sq cm. After preliminary corrosion tests stainless steels look promising as container materials. Several refractory materials exhibited nearly no corrosion in Na2S4. Two types of Na/S-cells having glass and stainless steel containers respectively are used for laboratory tests. Their effective capacity which is usually limited to about 40% of the theoretical value, can be increased by several means, but the stability of performance has still to be improved.
- Publication:
-
11th Intersociety Energy Conversion Engineering Conference
- Pub Date:
- 1976
- Bibcode:
- 1976iece.conf..497B
- Keywords:
-
- Corrosion Resistance;
- Electrolytic Cells;
- Refractory Materials;
- Sodium;
- Storage Batteries;
- Sulfur;
- Corrosion Tests;
- Electrical Resistivity;
- Energy Storage;
- Glass;
- Microstructure;
- Optimization;
- Stainless Steels;
- Technology Assessment;
- Energy Production and Conversion