The applications of LiFePO4 Batteries in the Energy Storage System
Lithium iron phosphate battery refers to the lithium ion battery with lithium iron phosphate as the cathode material. Lithium iron phosphate battery has the advantages of high operating voltage, large energy density, long cycle life, good safety performance, small self-discharge rate and no memory effect. So what are the lithium iron phosphate batteries in the energy storage market?
Lithium iron phosphate battery has a series of unique advantages such as high working voltage, large energy density, long cycle life, small self-discharge rate, no memory effect, green environmental protection, and supports stepless expansion, suitable for large-scale electric energy storage. It has a good application prospect in the fields of renewable energy power station power generation safety and grid connection, network peak regulation, distributed power station, UPS power supply, emergency power supply system and so on.
1. Wind power generation, photovoltaic power generation and other renewable energy power generation safety grid.
The inherent randomness, intermittency and fluctuation of wind power determines that its large-scale development will inevitably bring significant influence on the safe operation of power system. With the rapid development of wind power industry, especially the majority of wind farms in China belong to "large-scale centralized development and long-distance transmission", the grid-connected power generation of large wind farms poses severe challenges to the operation and control of large power grids.
Photovoltaic power generation is affected by ambient temperature, solar illumination intensity and weather conditions, and photovoltaic power generation is characterized by random fluctuation. China presents a parallel development trend of "decentralized development, low voltage local access" and "large-scale development, medium and high voltage access", which puts forward higher requirements for power network peak regulation and safe operation of power system.
Therefore, large capacity energy storage products become the key factor to solve the contradiction between power grid and renewable energy generation. Lithium iron phosphate battery energy storage system with operating mode conversion fast, flexible operation, high efficiency, safety, environmental protection, characteristics of scalability, in the national scenery storage lose demonstration project for the engineering application, will effectively improve the efficiency of equipment, solve the problem of local voltage control, improve the reliability of renewable energy power generation and improve power quality, Make renewable energy a continuous and stable power supply.
With the expansion of the capacity and scale, integration technology matures, the energy storage system will further reduce the cost, through the security and reliability of long-term test, lithium iron phosphate battery energy storage system is expected to renewable energy sources such as wind power, photovoltaic power generation power grid safety and raise the quality of electric energy is widely used.
2. Peak regulation of power grid
Pumped storage power station is the main means of peak regulation. The pumped-storage power station needs to build two reservoirs, which are limited by geographical conditions. It is not easy to build in plain areas, and it covers a large area and has high maintenance costs. Using lithium iron phosphate battery energy storage system instead of pumped storage power station to cope with the peak load of power grid, not limited by geographical conditions, free site selection, less investment, less occupation, low maintenance cost, will play an important role in the peak load adjustment process of power grid.
3. Distributed power stations
The continuous and rapid development of China's economy has brought about the decentralization of UPS power user demand, which makes more industries and more enterprises have a continuous demand for UPS power.
Compared with lead-acid battery, lithium iron phosphate battery has the advantages of long cycle life, safety and stability, green environmental protection, small self-discharge rate and so on. With the continuous maturation of integration technology and the continuous reduction of cost, lithium iron phosphate battery will be widely used in UPS power battery. With the rise of energy storage market, in recent years, some power battery enterprises have arranged energy storage business, to develop new application market for lithium iron phosphate battery. On the one hand, lithium iron phosphate can be transferred to the field of energy storage due to its characteristics of super-long life, safe use, large capacity and green environment protection, which will extend the value chain and promote the establishment of a new business model. On the other hand, the energy storage system of lithium iron phosphate battery has become the mainstream choice in the market.
4. UPS power supply
The continuous and rapid development of China's economy has brought about the decentralization of UPS power user demand, which makes more industries and more enterprises have a continuous demand for UPS power.
Compared with lead-acid battery, lithium iron phosphate battery has the advantages of long cycle life, safety and stability, green environmental protection, small self-discharge rate and so on. With the continuous maturation of integration technology and the continuous reduction of cost, lithium iron phosphate battery will be widely used in UPS power battery. With the rise of energy storage market, in recent years, some power battery enterprises have arranged energy storage business, to develop new application market for lithium iron phosphate battery. On the one hand, lithium iron phosphate can be transferred to the field of energy storage due to its characteristics of super-long life, safe use, large capacity and green environment protection, which will extend the value chain and promote the establishment of a new business model. On the other hand, the energy storage system of lithium iron phosphate battery has become the mainstream choice in the market.
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