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Sodium-ion battery

Sodium and lithium are alkali metal elements belonging to group IA of the periodic table, both elements have similarities in physical and chemical properties, and both can be used as charge carriers in secondary batteries. Structures, components, systems, and charge storage mechanisms of sodium-ion battery are essentially the same except that lithium ions are replaced with sodium ions

Sodium-ion battery

Advantages of sodium-ion battery

Compared with lithium, sodium has greater advantages in terms of resource reserves, geographical distribution, raw material costs, safety, etc.

Abundant crustal resources

Sodium is one of the most abundant elements in the Earth’s crust, which is more than 400 times the amount of lithium. Sodium is widely and evenly distributed, and infinite sodium resources are also found in the ocean.

Lower cost

Compared with lithium-ion batteries, sodium-ion batteries require materials that cost 30-60% less, and the price gap will widen as resources become scarce.

Safety

The internal resistance of sodium-ion batteries is higher than that of lithium batteries, so there is no fire or explosion in tests such as overshooting, over discharge, short circuit, pinprick and extrusion.

Excellent low temperature performance

Sodium-ion batteries can operate in temperatures ranging from -40°C to 60°C, providing a significant advantage in high-power application scenarios in cold regions.

High-rate capability and fast charging

High-power charging and discharging due to fast sodium ion transport and good battery rate capability, sodium sub-battery can be charged to 80% in 10 minutes.

Compatibility

Sodium-ion battery is compatible with existing lithium-ion battery devices due to similarity in operation and cell structure.

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