Advantages and disadvantages of sodium-ion batteries compared with lithium-ion batteries
14 May, 2024
By 萨斯电力
Cylindrical sodium-ion battery is a kind of sodium-ion battery with cylindrical cell structure. Its internal structure is composed of a positive electrode, a negative electrode, an electrolyte and a diaphragm, and the electrode material is usually a sodium ion compound, such as sodium nickel oxide (NaNiO2) or sodium iron phosphate (NaFePO4).
The advantages of sodium-ion batteries include:
High energy density: Compared to lithium-ion batteries, sodium-ion batteries have a higher theoretical energy density and can store more energy.
Abundant resources: Sodium resources are relatively abundant and cheap, and are more sustainable than lithium-ion batteries.
High safety: Sodium-ion batteries are relatively good in terms of safety, and are less prone to overheating or explosion.
However, sodium-ion batteries also have some drawbacks and challenges:
Low cycle life: The cycle life of sodium-ion batteries is relatively short, that is, the performance gradually decreases after the charge and discharge cycle.
Low charge and discharge rate: Compared with lithium-ion batteries, the charge and discharge rate of sodium-ion batteries is low.
The technology is still developing: Compared to lithium-ion batteries, the technology of sodium-ion batteries is still in its early stages and needs further research and improvement.
Applications for sodium-ion batteries include, but are not limited to:
Electric vehicles: Power sources for electric cars, electric bicycles and other electric vehicles.
Energy storage system: As a battery component in a home, industrial or grid energy storage system, storing and supplying electricity.
Renewable energy storage: Used in renewable energy systems such as solar and wind to store excess electrical energy for use in unstable power networks.
Mobile devices: Used as batteries for portable electronic devices such as mobile phones, tablets, etc.
Off-grid power supply: Provide a reliable source of energy for off-grid power supply in remote areas or emergency situations.
