Recent progress in the development of sodium sulfur batteries for large-scale energy storage applications = Recent progress in the development of sodium sulfur batteries for large-scale energy storage applications

다국어 초록 (Multilingual Abstract)

Sodium sulfur (NaS) batteries have received the attention as one of the promising candidates for large-scale energy storage since they utilize naturally abundant and cost-competitive elements as electrode materials and present high energy density and llong lifetime against their opponents. The NaS batteries are the system operated in the temperature over 300℃ in order to acheive appropriate ionic conductance through their beta-alumina solid electrolytes (BASEs) and hold the electrode materials in a molten state to the operation. In this presentation, our recent advances on developing the sodium sulfur cells are described. The single unit cell developed results 150W/＞1,000Wh at 350℃ and its lifetime is >400 cycles.