Role Of Lithium Iron Phosphate Battery in Energy Storage Market

Lithium iron phosphate battery has a series of unique advantages, such as high working voltage, high energy density, long cycle life, low self-discharge rate, no memory effect, green and environmental protection, and supports stepless expansion. It is suitable for large-scale electric energy storage. It has good application prospects in the fields of safe grid connection of renewable energy power stations, grid peak shaving, distributed power stations, UPS power supply, emergency power supply system, etc.
With the rise of the energy storage market, in recent years, some power battery enterprises have laid out energy storage business to open up new application markets for lithium iron phosphate battery. On the one hand, lithium iron phosphate, due to its ultra-long lifespan, safe use, large capacity, and green environmental protection, can be transferred to the energy storage field, which will extend the value chain and promote the establishment of a new business model.
On the other hand, the energy storage system matched with lithium iron phosphate battery has become the mainstream choice in the market. It is reported that lithium iron phosphate battery has been tried to be used in electric buses, electric trucks, user side and grid side FM.
(1) The safe grid connection of renewable energy generation such as wind power and photovoltaic power, and the inherent randomness, intermittency, and volatility of wind power, determine that its large-scale development will inevitably have a significant impact on the safe operation of the power system.
With the rapid development of the wind power industry, especially in China where most wind farms are "large-scale centralized development and long-distance transmission", the grid connected power generation of large-scale wind farms poses a serious challenge to the operation and control of the large power grid.
Photovoltaic power generation is influenced by environmental temperature, sunlight intensity, and weather conditions, and exhibits a random fluctuation characteristic. China is showing a development trend of "decentralized development, low voltage local access" and "large-scale development, medium to high voltage access", which puts forward higher requirements for peak shaving of the power grid and safe operation of the power system.
Therefore, large capacity energy storage products become the key factor to solve the contradiction between the power grid and renewable energy power generation. The lithium iron phosphate battery energy storage system has the characteristics of fast condition conversion, flexible operation mode, high efficiency, safety, environmental protection, and strong scalability.
With the continuous expansion of capacity and scale, the continuous maturity of integration technology, the cost of the energy storage system will be further reduced. After long-term testing of safety and reliability, the lithium iron phosphate battery energy storage system is expected to be widely used in the safe grid connection of wind power generation, photovoltaic power generation and other renewable energy power generation and in improving power quality.
(2) The main means of peak shaving in the power grid has always been pumped storage power plants. Due to the need to build two reservoirs, the upper and lower, for pumped storage power stations, which are greatly limited by geographical conditions, it is not easy to build them in plain areas, and they also occupy a large area with high maintenance costs.
The use of lithium iron phosphate battery energy storage system instead of pumped storage power station will play an important role in the peak load regulation process of the power grid, free from geographical conditions, free site selection, less investment, less land occupation, and low maintenance costs.
(3) Distributed power stations, due to the inherent shortcomings of large power grids, are difficult to ensure the quality, efficiency, safety and reliability requirements of power supply. For important units and enterprises, dual or even multiple power sources are often needed as backup and protection.
The lithium iron phosphate battery energy storage system can reduce or avoid power outages caused by power grid failures and various accidents, and plays an important role in ensuring safe and reliable power supply in hospitals, banks, command and control centers, data processing centers, chemical material industries, precision manufacturing industries, etc.
(4) UPS power supply. The continuous and rapid development of the Chinese economy has led to the diversification of user demand for UPS power, resulting in a sustained demand for UPS power from more industries and enterprises.
Compared with lead-acid battery, lithium iron phosphate battery has the advantages of long cycle life, safety and stability, green and environmental protection, and low self-discharge rate. With the continuous maturity of integrated technology and the continuous reduction of cost, lithium iron phosphate battery will be widely used in UPS power battery.