AG10 battery.Application prospects of lithium batteries

　　Due to the practical needs of China's power system. The new generation of smart grid technology is rapidly developing. In 2007, State Grid Corporation of China proposed the "Research on Key Energy Conversion Technologies - Research on Key Energy Storage Technologies" framework, which has promoted the rapid development of power energy storage systems. Currently, both official and private sectors are paying close attention to this technology and market. The power grid has begun to develop kilowatt and megawatt level energy storage systems for distributed energy storage systems and the construction of smart grids.

　　Compared with other battery energy storage systems, lithium-ion battery energy storage systems have the characteristics of high energy density, wide adaptability to environmental temperature, high charging and discharging efficiency, and fast response speed. They have significant advantages in distributed energy storage systems and DC bus power supply systems. With the rapid development of lithium-ion batteries, their safety and cycle times will be further improved, and their prices will be further reduced. Lithium ion battery energy storage systems will also occupy an increasingly important position in microgrid systems such as distributed energy storage systems and wind power systems.

　　Challenges faced by lithium-ion battery energy storage systems

　　The expectation of State Grid for the performance and price of the next generation of energy storage batteries is to achieve a cycle life of more than 5000 times, a price of less than 1500 yuan/kWh, and an efficiency of over 80%. Currently, battery energy storage systems are still unable to meet such indicators. Therefore, performance, price, and efficiency have become a major challenge for the application of lithium-ion batteries in energy storage systems. Secondly, in the entire energy storage battery system, lithium-ion batteries also face competitive pressure from sodium sulfur batteries and flow batteries.

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