3.7V lipo battery

　　Are electric vehicle safety issues frequent? The development of 3.7V lipo battery technology is expected to crack

　　It is understood that large-scale power battery accidents have occurred frequently in recent years, largely due to the use of liquid electrolytes inside the batteries. Safety is very critical for lithium-ion battery energy storage. Li Liangliang, associate professor at the School of Materials Science and Engineering at Tsinghua University, emphasized that commercial lithium-ion batteries currently on the market generally use organic liquid electrolytes. Its disadvantages are that it is easy to burn and may leak liquid, causing environmental pollution.

　　As the "heart" of electric vehicles, power batteries have attracted as much attention as the currently popular new energy vehicles. Among them, lithium-ion batteries are favored by the new energy automobile industry and have huge market development potential. However, the current lithium-ion battery technology is not yet mature, and the problem of unstable safety still exists. In addition, the frequent accidents of battery "irregular fire" have been stimulating the nerves of consumers, and the development of 3.7V lipo battery technology may become a breakthrough. New options for electric vehicle safety issues.

　　High safety is the basis and prerequisite for the application of energy storage batteries, and solid-state technology is the best way to solve the safety problem of secondary batteries. Solid-state lithium batteries have entered a stage of accelerating global layout and research and development, and many well-known institutions are developing solid-state lithium batteries. Many battery and automobile manufacturers, including South Korea's Samsung, Japan's Toyota and my country's CATL, have increased their investment in 3.7V lipo battery research and development, and some batteries have now entered the vehicle installation and testing stage. Although the prospects are promising, the road to developing solid-state batteries is by no means smooth sailing due to various technical and process problems.

　　At present, 3.7V lipo battery materials are developing rapidly, but comprehensive applications are lacking. As the core material of solid-state batteries, there has been a breakthrough in the single indicator of solid lithium-ion conductors, but the comprehensive performance cannot yet meet the needs of large-scale energy storage. The solid-state electrolytes used in today's solid-state batteries generally have performance shortcomings, and there is still a big gap between the requirements of high-performance lithium-ion battery systems.

　　In general, the research on solid-state batteries is currently more academic. In terms of industrialization, because some key technologies involve the core technologies of various enterprises and cannot be obtained, technologies based on engineering applications still need to be further explored. .

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