Does the energy storage system use lithium iron phosphate batteries or vanadium batteries?

　　Due to the discontinuous and unstable characteristics of clean energy such as wind and solar energy, large-scale grid connection will bring adverse effects on grid peak shaving, frequency modulation and power quality, which limits the wide application of clean energy.

　　The construction of energy storage power stations represented by lithium iron phosphate batteries and vanadium batteries provides good technical support for the grid to adopt renewable energy power generation.

　　Lithium-ion battery (LIB) has become the main energy storage solution in modern social life. Among them, lithium iron phosphate batteries are a perfect replacement for lead-acid batteries, and they are the first choice for grid-connected peak shaving, off-grid energy storage, photovoltaic energy storage, UPS, data center and other industries.

　　But we can't ignore the application of another kind of battery in energy storage system, it is vanadium battery.

　　The full name of vanadium battery is all-vanadium flow battery, which is a kind of reciprocating conversion from chemical energy to electric energy through the change of vanadium ion valence state. It has the characteristics of high safety, long life and low pollution.

　　The vanadium battery industry used in power station peak shaving and wind energy storage in the United States, Japan and other countries has developed rapidly, and the technology has basically matured.

　　The energy storage system can absorb and release power in real time, improve the power supply reliability of the grid, and make wind and solar power generation more suitable for the operation needs of power system dispatch.

　　As for whether the lithium iron phosphate battery or the vanadium battery is used in the energy storage system, this needs to be calculated in detail according to the specific project performance and cost.