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2. Transportation field: In the transportation field, sodium ion batteries can be used as a supplement to lithium ion batteries and applied to some new energy vehicles, low-speed electric vehicles, two-wheeled vehicles and other fields with low endurance requirements. In addition, sodium ion batteries can also be used in mining areas, construction machinery and other scenes to replace traditional diesel engines and reduce the problems of air pollution and corrosion of equipment.2. High safety: The sodium ion battery has an ultra-wide working temperature range of -40℃-80℃, and it is not easy to get out of control even at high temperature, so its safety is higher.1. Technical breakthrough: Although sodium ion battery technology has made some progress, it still needs further breakthrough in energy density and cycle life to meet the market demand.

4. Environmental protection and sustainability: the production process of sodium ion battery has little impact on the environment, and it is easy to realize recycling, which conforms to the concept of sustainable development.Second, the advantages of sodium ion batteries over lithium ion batteries4. Environmental protection and sustainability: the production process of sodium ion battery has little impact on the environment, and it is easy to realize recycling, which conforms to the concept of sustainable development.

4. Environmental protection and sustainability: the production process of sodium ion battery has little impact on the environment, and it is easy to realize recycling, which conforms to the concept of sustainable development.1. Low cost: The abundant sodium resources make the raw material cost of sodium ion batteries much lower than that of lithium ion batteries, which is of great significance for large-scale energy storage and transportation applications.Iv. Opportunities and challenges of Pawa in the field of sodium electricity