As a new energy power, China's new energy industry has developed rapidly in recent years, and the field of lithium-ion battery energy storage has also been closely watched. Lithium ion battery application scenarios can be divided into consumption, power and energy storage. At present, energy storage battery technology is developing rapidly. Once a breakthrough is made, it will have a significant impact on new energy development, power grid operation control, terminal energy use, etc.

As a new application scenario, energy storage lithium-ion battery has also been gradually paid attention to. With its high energy density, high conversion efficiency, fast response and other characteristics, lithium-ion battery has broad prospects in the application of large energy storage systems. In the future, energy storage lithium ion battery technology will be widely used in the new generation power system.

1. New energy grid connection demand. Including power quality improvement and smoothing; New energy power generation plan tracking, combined with power generation curve prediction; Cut the peak and fill the valley, so that new energy can continue to generate electricity; Combined with photovoltaic and wind power generation, it can smooth the power output, increase the proportion of grid acceptance, make full use of new energy, and reduce harmful gas emissions;

2. Adjust the load curve, cut the peak and fill the valley, and improve the utilization rate of distribution equipment and lines;

3. Participate in power grid frequency modulation to improve the power supply level of the large power grid;

4. As an important part of the micro grid, it can solve the livelihood problems and improve the power supply quality in local areas;

5. Important elements of smart grid;

6. Special requirements (photovoltaic power stations, disaster sites, subway stations, airport terminals, military bases and other places with uninterruptible power supply)

7. Data center; The lithium-ion battery can be charged and discharged quickly for many times, and has the characteristics of high density. It can store electricity during the municipal electric wave valley. When the electric wave peak comes, the stored electricity will be transmitted to the data center, thus reducing the wave peak pressure of the power grid. This function will make great contributions to both green energy conservation and PUE, and can meet the dual requirements of government and data center users on PUE and TCO at the same time;

8. Distributed energy storage is used for peak shaving and valley filling of plants and buildings;

9. Standby power supply.