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3. Strong temperature adaptability: The performance of sodium ion battery is excellent in low temperature environment, even in the low temperature environment of -20℃, its capacity retention rate can still reach above 88%, which makes sodium ion battery have obvious advantages in energy storage application in cold regions.3. Strong temperature adaptability: The performance of sodium ion battery is excellent in low temperature environment, even in the low temperature environment of -20℃, its capacity retention rate can still reach above 88%, which makes sodium ion battery have obvious advantages in energy storage application in cold regions.3. Strong temperature adaptability: The performance of sodium ion battery is excellent in low temperature environment, even in the low temperature environment of -20℃, its capacity retention rate can still reach above 88%, which makes sodium ion battery have obvious advantages in energy storage application in cold regions.

Iv. Opportunities and challenges of Pawa in the field of sodium electricityAs a new energy storage technology, sodium ion battery has a broad development prospect. First of all, sodium resources are abundant and widely distributed on the earth, mainly in the form of sodium chloride (salt), which makes the raw material cost of sodium ion batteries relatively low. Secondly, the sodium ion battery has little environmental impact in the manufacturing process, and it is easy to realize environmental protection recycling, which conforms to the concept of sustainable development. In addition, with the technical breakthrough and the realization of large-scale production, the performance of sodium ion batteries will be further improved and its commercialization process will be accelerated.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. 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.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.First, the development prospect of sodium ion batteries