At present, the development of electric vehicle battery technology in China is rapid, but there are two obvious shortcomings.

　　The first drawback of electric vehicle batteries is the lack of in-depth technology, such as chemical, physical, temperature, and structural issues of batteries. We have not yet developed enough research and development in these areas, and have not been able to establish mathematical models to clarify these issues. Another drawback is the lack of an evaluation system. Although some electric vehicles in China operate well, there is a lack of a good evaluation system. For example, there is no good evaluation of the safety of batteries and whether they can work properly in high and low temperature environments. [2]

　　In a densely populated country like China, the potential of the electric vehicle market is enormous, and there is still a considerable gap compared to developed electric vehicle countries. So we must keep up with the pace of electric vehicle research and development in developed countries, and carry out serious research and development in areas such as power supply, integrated circuits, and power supply sectors, working together to expand and strengthen the battery industry.

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