Sodium-Sulfur Battery

2Na + 3S → Na2S3

개요

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.

참여 물질

역할 물질 계수 상태
반응물 Sodium Na 2 (l)
반응물 Sulfur S 3 (l)

일상 속 예시

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

산업적 중요성

NaS 전지는 그리드 규모 에너지 저장(MW 규모), 피크 전력 제어, 재생에너지 통합에 배치됩니다.

성질

유형
Electrochemical
가역 반응
예
에너지
발열
ΔH
-420.0 kJ/mol

관련 반응

Electrolysis of Water Electrolytic Production of Chlorate Electrorefining of Copper Alkaline Battery Discharge Anodizing of Aluminum Cathodic Protection (Zinc Sacrificial Anode) Chlor-Alkali Electrolysis Chrome Electroplating Nickel-Metal Hydride Battery Electrochemical CO₂ Reduction to CO

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.