energy storage system

New sodium battery technology – breakthroughs in new energy technologies and future prospects

New sodium battery technology - breakthroughs in new energy technologies and future prospects
What is a sodium-ion battery? What are its advantages and characteristics? What is the most suitable application scenario? What are the prospects for development? This article will be briefly interpreted.
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    Sodium-ion batteries are very popular recently, and production lines and sodium ion battery energy storage facilities have been set up everywhere.

    So, what is a sodium ion battery? What are its advantages and disadvantages? What is the most suitable application scenario? What are the prospects for development? This article will be briefly interpreted.

    What is the new sodium battery technology?

    New sodium battery technology is also a rechargeable battery technology, which uses sodium ions as a charge carrier, similar to the working principle of lithium ion batteries.

    The main difference is the difference between positive and negative electrode materials and electrolytes. Sodium-ion battery (NIB) A battery that uses Sodium ions to move between the positive and negative electrodes of the battery to store and release energy.

    Advantages of new sodium battery technology

    Rich resources: the abundance of sodium resources in the Earth’s crust is in sixth place, with the potential advantages of rich resources, simple extraction, and low cost.

    Advantages of new sodium battery technology

    Cost-effectiveness: The cost of sodium ion batteries can be reduced by 30% to 40% compared with lithium ion batteries as a whole, and the positive electrode material and electrolyte account for the largest proportion of the material cost composition, both up to 26%. Therefore, the sodium ion battery has an advantage in material cost, especially the positive electrode material and the fluid collection structure.

    Safety: The internal resistance of sodium ion batteries is high, the thermal runaway temperature is high, and it has high safety.

    High and low temperature performance: can work normally in the temperature range of -40℃ to 80℃, high and low temperature performance is excellent.

    Fast charging capacity: sodium ion batteries have good rate performance and can achieve fast charging.

    Disadvantages of new sodium battery technology

    Low energy density: at present, ternary lithium is generally 250wh/kg, lithium iron phosphate is 180wh/KG, and sodium battery layered oxide will be about 130wh/kg. The polyanionic material will be about 110wh/kg.

    Low cycle times: the current market popular sodium electric layer oxide system, the number of cycles of the cell is about 4000 cycles, made of square aluminum shell, about 2000 cycles. Of course, it is not ruled out that with the development of technology, the density and number of cycles will increase.

    Disadvantages of new sodium battery technology

    Immature technology: The shipment scale of sodium ion raw materials is small, the price is high, and the technical route is not fully finalized.

    The performance test and market application verification of sodium ion battery products are insufficient; The product test data accumulation is small, can not support rapid development iteration.

    Therefore, new sodium battery technology have not yet achieved large-scale mass production and large-scale application.

    Application of new sodium battery technology

    Portable electronics: The low cost and long cycle life of sodium ion batteries make them an ideal choice for portable electronics such as smartphones and tablets.

    Household appliances: The high safety and environmental protection characteristics of sodium-ion batteries make them the preferred power supply for household appliances such as vacuum cleaners and washing machines.

    Electric vehicles: Although the charge and discharge rate and energy density of sodium ion batteries are less than that of lithium ion batteries, their long cycle life and low cost make them suitable for use in light electric vehicles such as electric bicycles and electric motorcycles.

    Application of new sodium battery technology

    Large-scale energy storage system: The large-scale energy storage capacity and environmental protection characteristics of sodium ion batteries make them an ideal energy storage solution for renewable energy facilities such as solar and wind power stations.

    Although new sodium battery technology has obvious advantages in the above areas, due to their relatively low energy density and charge and discharge rate, they may not be suitable for use in equipment requiring high energy density, such as electric vehicles and drones.

    Will sodium-ion batteries replace lithium-ion batteries?

    The answer is no. You can also check the sodium ion battery vs lithium ion article in our website to know more information.

    Challenges of sodium-ion batteries

    Despite the advantages of new sodium battery technology, they still face some challenges. First of all,

    The energy density and cycle life of sodium ion batteries are lower than those of lithium ion batteries(lithium battery energy density). At present, the energy density and cycle life of sodium-ion batteries are only two-thirds and one-half of lithium iron phosphate batteries, which makes it difficult to meet the needs of passenger car power batteries.

    Although the cost reduction potential of sodium-ion batteries is huge, the production cost of sodium-ion batteries is still higher than that of lithium-ion batteries due to the current small overall production volume.

    Market acceptance and maturity of the industrial chain

    From the perspective of market acceptance and industrial chain maturity, lithium batteries still occupy a dominant position.

    At present, the industrial chain of lithium batteries is relatively mature, the production cost is low, and it has been widely used in electric vehicles, mobile devices and other fields.

    In contrast, the industrial development of new sodium battery technology is in its initial stage, and the related industrial chain development is not perfect. For example, the material system of sodium-ion batteries has not yet achieved industry consensus, including positive electrode materials, negative electrode materials and electrolytes, and there are certain problems.

    The technical standard of sodium-ion batteries is not perfect, and the battery voltage platform is different under different technical routes, which puts higher requirements on the battery management system and inverter.

    Will sodium-ion batteries replace lithium-ion batteries

    Policy and environmental considerations

    In addition, policy and environmental considerations are also important factors affecting the replacement of lithium batteries with sodium ion batteries. In order to promote the development of clean energy, many countries give policy support to new energy vehicles.

    In this case, the use of lithium batteries as an energy storage solution may be more supported by policy. At the same time, from an environmental perspective, the manufacturing process of sodium-ion batteries is relatively more environmentally friendly, but the lithium ion battery recycling system is more mature.

    Future trends in development

    Finally, from the perspective of future development trends, sodium-ion batteries and lithium batteries may not be completely replaced by each other, but each plays an advantage in a specific field. With the continuous advancement of technology and the improvement of the industrial chain, sodium-ion batteries may show greater potential in some application scenarios.

    For example, in areas that require a lot of energy storage but have limited costs or low energy density requirements (such as large-scale energy storage, electric buses, etc.), sodium-ion batteries may become the first choice.

    Conclusion

    To sum up, although sodium-ion batteries have some advantages and potential application prospects, at this stage and in the foreseeable future, it can not completely replace the status of lithium batteries. Each of the two battery technologies has its own advantages and will play a role in different areas.

    With the progress of science and technology and the improvement of the industrial chain, we are expected to see a diversified and complementary battery market pattern.

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