What are the key technologies for mobile lithium-ion battery energy storage systems? The emergency power supply system of lithium-ion battery mobile energy storage power stations uses lithium iron phosphate batteries with excellent safety, long life, and high energy density as energy storage power sources. At the same time, combined with the design ideas of online UPS, it can realize seamless switching between mains power and energy storage power supply, meet the uninterrupted power supply of emergency power supply