Sodium sulphur battery Solomon Islands

What is a sodium sulfur battery?

A sodium–sulfur (NaS) battery is a type of molten-salt battery that uses liquid sodium and liquid sulfur electrodes. This type of battery has a similar energy density to lithium-ion batteries, and is fabricated from inexpensive and low-toxicity materials.

What happened to sodium sulphur batteries?

Sodium-sulphur battery factories and installations that use them have been the site of a number of fires, such as the 2011 fire at the Tsukuba Plant in Japan that caused manufacturer NGK to temporarily suspend production of its sodium-sulphur batteries.

Are sodium & sulphur safe for lithium batteries?

Sodium and sulphur are also abundant and inexpensive materials, which mitigates one of the main problems with lithium batteries. However, there are risks involved with handling both sodium and sulphur due to the volatile nature of both reactants.

Are sodium sulphur batteries better than lithium ion batteries?

Sodium-sulphur batteries have a longer lifespan than their lithium-ion counterparts, with lifetimes of around 15 years compared to the two or three years expected from lithium batteries. Sodium and sulphur are also abundant and inexpensive materials, which mitigates one of the main problems with lithium batteries.

What is a sodium polysulfide battery used for?

However, due to the high operating temperature required (usually between 300 and 350 °C), as well as the highly corrosive and reactive nature of sodium and sodium polysulfides, these batteries are primarily suited for stationary energy storage applications, rather than for use in vehicles.