Sodium-Sulfur Battery

2Na + 3S → Na2S3

概述

Sodium-sulfur batteries operate at 300–350°C with molten sodium anode, molten sulfur cathode, and a solid beta-alumina ceramic electrolyte that conducts Na⁺ ions. Cell voltage is about 2.0 V with energy density of 150–240 Wh/kg. Both sodium and sulfur are abundant and cheap, making NaS attractive for grid storage.

参与者

角色 物质 系数 状态
反应物 Sodium Na 2 (l)
反应物 Sulfur S 3 (l)

日常示例

Japan uses NaS batteries for grid-scale energy storage, with over 200 MW of installed capacity stabilizing the power grid.

工业重要性

钠硫电池被部署于电网规模储能系统，尤其适合配合风能和太阳能发电，是可再生能源平滑调峰的关键技术。

属性

类型
Electrochemical
可逆
是
能量
放热
ΔH
-420.0 kJ/mol

相关反应

Electrorefining of Copper Alkaline Battery Discharge Anodizing of Aluminum Chlor-Alkali Electrolysis Nickel-Metal Hydride Battery Daniell Cell (Zinc-Copper Galvanic Cell) Electrolysis of Molten NaCl (Downs Process) Lead-Acid Battery Discharge Hall-Héroult Process (Aluminum Smelting) Electrolysis of Water

Frequently Asked Questions

What is the equation for Sodium-Sulfur Battery?
The balanced equation is: 2Na + 3S → Na₂S₃.
What type of reaction is Sodium-Sulfur Battery?
Sodium-Sulfur Battery is a electrochemical reaction. It is reversible under certain conditions.
Is Sodium-Sulfur Battery exothermic or endothermic?
Sodium-Sulfur Battery is exothermic (releases energy). The enthalpy change (ΔH) is -420.0 kJ/mol.