Energy storage technology is closely linked to the development of new energy applications and power grids, which can effectively improve energy utilization efficiency and solve problems such as power supply in remote areas. Therefore, energy storage technology is a key technology that needs to be solved when solar and wind power generation become the main energy sources, and it is a key link that cannot be bypassed in the development of new energy. Industry insiders believe that the future of energy storage batteries should be in the wind power and photovoltaic industry, especially the wind power industry, which has been largely laid out. Due to the instability of wind resources, the application of lithium battery pack energy storage technology can help wind farm output smoothing and "peak shaving and valley filling".

● Microgrids

The small power generation and distribution system composed of distributed power generation, energy storage devices, energy conversion devices, loads, monitoring and protection devices, etc., is the main application of the domestic energy storage lithium battery pack system. Distributed generation has the advantages of high energy efficiency, low pollution, high reliability, and flexible installation location, but at the same time, it has shortcomings such as strong output power fluctuation and complex control. In order to effectively integrate the advantages of distributed generation, improve the utilization rate of renewable energy, and enhance the stability of the power grid, energy storage systems have received extensive attention from the energy industry.

● New energy vehicle charging station

The charging station uses clean energy power supply, and stores electric energy after photovoltaic power generation, photovoltaic, energy storage and charging facilities form a microgrid, which intelligently interacts with the public grid according to demand, and can realize two different operation modes of grid connection and off-grid. The use of energy storage systems can also alleviate the impact on the regional power grid when charging piles with high currents. The development of new energy vehicles is inseparable from the construction of charging infrastructure, and the establishment of supporting energy storage facilities is conducive to improving the quality of local power grid power and increasing the selectivity of charging station sites.

●Wind power generation system

Considering the reality of grid operation and the long-term interests of large-scale wind power development, improving the controllability of wind farm output power is an important development direction of wind power generation technology. The introduction of wind power generation technology into the lithium battery pack energy storage system can effectively suppress the fluctuation of wind power power, smooth the output voltage, improve the power quality, ensure the grid-connected operation of wind power generation, and promote the utilization of wind energy.

●In the field of communications

At this stage, most of the lithium batteries used in the field of communication backup power supply are lithium iron phosphate battery packs, and the backup power supply based on lithium battery packs can be widely used in indoor and blind area coverage, class II and III mains areas, short-term backup power and other scenarios with high requirements for power weight, volume, cycle life and rate. In the era of big data, scenarios with limited space such as sharing stations and central computer room expansion also gradually require the participation of lithium battery backup power supply.

In the short term, the energy storage industry is approaching a period of rapid growth, and it not only needs a clear ZF subsidy policy to encourage power companies to invest, but also needs energy storage companies to innovate business models to promote product promotion in the household and commercial fields. By 2020, the market penetration rate of lithium battery pack energy storage is expected to be 5%-10%, and the installed capacity of battery energy storage is expected to exceed 5GW, with an average annual compound growth rate of 120%.