Lithium iron phosphate battery has a series of unique advantages such as high operating voltage, high energy density, long cycle life, small self-discharge rate, no memory effect, green and environmental protection, and supports stepless expansion, suitable for large-scale electrical energy storage, and has a good application prospect in the fields of renewable energy power station power generation safety to the grid, power grid peaking, distributed power station, UPS power supply, emergency power system, etc.
With the rise of the energy storage market, in recent years, some power battery companies have laid out energy storage business, to develop new applications for lithium iron phosphate battery market. On the one hand, lithium iron phosphate due to ultra-long life, use of safety, high capacity, green and other characteristics, can be transferred to the field of energy storage will extend the value chain and promote the establishment of a new business model. On the other hand, lithium iron phosphate supporting energy storage system has become the mainstream choice of the market. According to reports, lithium iron phosphate batteries have been tried for electric buses, electric trucks, user side and grid side frequency regulation.
1、Wind power generation, photovoltaic power generation and other renewable energy generation safety to the grid
The inherent randomness, intermittency and volatility of wind power generation determines that its large-scale development will 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 developed on a large scale and transmitted over long distances, the grid connection of large wind farms poses a serious challenge to the operation and control of large power grids.
Photovoltaic power generation is affected by ambient temperature, sunlight intensity and weather conditions, and photovoltaic power generation is characterised by random fluctuations. Therefore, high-capacity energy storage products have become a key factor in solving the conflict between the power grid and renewable energy generation. Lithium iron phosphate energy storage system has the characteristics of fast working condition conversion, flexible operation mode, high efficiency, safety and environmental protection, and strong scalability, etc. It has carried out engineering application in the national scenery storage and transmission demonstration project, which will effectively improve equipment efficiency, solve local voltage control problems, increase the reliability of renewable energy power generation and improve power quality, and make renewable energy become a continuous and stable power supply.
With the continuous expansion of capacity and scale, the integration of technology continues to mature, the cost of energy storage systems will be further reduced, after long-term testing of safety and reliability, lithium iron phosphate energy storage systems are expected to be widely used in wind power generation, photovoltaic power generation and other renewable energy generation safety to the grid and improve power quality.
2、Network peaking
The main means of peaking the power grid has been pumped storage power stations. As pumped storage power plants need to build two reservoirs, the upper and lower reservoirs, subject to geographical constraints, in the plain area is not easy to build, and covers an area of large, high maintenance costs. The use of lithium iron phosphate energy storage system instead of pumped storage power station, to cope with the peak load of the power grid, not subject to geographical constraints, free choice of location, less investment, less land area, low maintenance costs, in the process of grid peaking will play an important role.
3、Distributed power plants
Large power grids have their own shortcomings, making it difficult to guarantee the quality, efficiency, safety and reliability requirements of power supply. For important units and enterprises, they often require dual or even multiple power supplies as backup and protection. Lithium iron phosphate energy storage systems can reduce or avoid power outages due to grid failures and various unexpected events, and play an important role in ensuring safe and reliable power supply for hospitals, banks, command and control centres, data processing centres, chemical material industries and precision manufacturing industries.
4、UPS power supply
The continued rapid development of China's economy has brought about a decentralisation of UPS power supply user demand, resulting in a sustained demand for UPS power supplies from a wider range of industries and more businesses.
Relative to lead-acid batteries, lithium iron phosphate batteries have a long cycle life, safe and stable, green, small self-discharge rate and other advantages, as the integration of technology continues to mature, the cost continues to reduce, lithium iron phosphate batteries in UPS power supply batteries will be widely used.
Post time: Aug-17-2022