20130288153 | Sodium-Sulfur Battery - A sodium sulfur secondary battery is a battery that operates at a comparatively lower temperature, while maintaining a high operating cell potential comparable to existing sodium sulfur battery configurations. The apparatus accomplishes this through the arrangement of component materials selected based on experimentation results demonstrating favorable performance in a secondary battery configuration. The sodium sulfur battery comprises a housing, containing an anode solution, a cathode solution, and a sodium ion conductive electrolyte membrane. The anode solution contains metallic sodium and anode solvent. The cathode solution contains elemental sulfur and a cathode solvent. The sodium ion conductive electrolyte membrane is a Sodium Titanate Nano-membrane formed from long TiO2-nanowires. The electrolyte membrane is positioned between the anode solution and the cathode solution. The electrolyte membrane is able to selectively transports of sodium ion between the anode solution and the cathode solution at temperatures below 75° C. generating an electrode potential. | 10-31-2013 |