Vanadium Redox Battery (VRB), also called Vanadium Flow Battery (VFB), is alternative to and is gradually replacing lead-acid battery.
VRB/VFB is an energy storage solution to ensure uninterrupted power supply no matter in combination with solar pv, wind power, biogas generator or in parallel operation.
We can supply a whole system of VRB for your projects, you can tell us your requirements and we will give a perfect solution as well as our qualified systems.
How Does VRB/VFB Work?
Vanadium Redox Flow Battery (VRFB) has two separate tanks, which one is containing the positive electrolyte and the other is containing negative electrolyte. Both of them consist of the element vanadium dissolved in sulphuric acid with the vanadium occurring in different oxidation states.
The batters have several cells which are separated by Ion-Exchange Membrane. In each chamber, there is a positive or a negative electrode. The two electrolytes are pumped through the cells on their side of the membranes.
The current from the solar panels, wind power or other renewable energies are fed down into the cells' electrodes, where it moves electrons from the positive to the negative elecrolyte, charging the battery as the liquid flows back into the tank. During discharging, the process is reversed.
|Nominal Voltage||48 VDC||Rated Current||105 A|
|Nominal Power||5 kW||Rated Time||6 h|
|Rated Power||30 kWh||Rated Capacity||630 Ah|
|Rated Efficiency||75%||Maximum Power||20 kW|
|Pile Weight||130 kg||Pile Size||63 cm × 75 cm × 35 cm|
|Battery Weight||2.5 t||Battery Size||2.0 m × 1.2 m × 2.0 m|
|Electrolyte Weight||2.2 t||Electrolyte Volume||1.6 m3|
|Electrolyte||1.5M V(IV/III)||Working Temperature||-30 °C to +60 °C|
|Charge Voltage Limiting||60 VDC||Discharge Voltage Limiting||40 VDC|
|Recycling Life||20,000 times||Storage Life||Unlimited|
|Note: Special requirements can be customized.|
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