Liquid flow batteries have a very rich development history. The earliest
research began by NASA in 1973, when the research system mainly focused on Fe
(3+)/Cr (2+) pairs;
In 1976, researchers discovered that vanadium could be used as an active
substance in flow batteries; In 1958, scholars theoretically proved the
feasibility of vanadium batteries, and the following year, all vanadium ion
redox flow batteries were officially introduced and patented.
With the continuous deepening of research by scholars, articles on vanadium
battery electrodes, electrolytes, separators, etc. have emerged one after
another. The advantages and disadvantages of vanadium batteries are gradually
being recognized by people.
Vanadium batteries have the following advantages compared to other energy
storage batteries. Firstly, the battery capacity is relatively independent of
the output power. The battery capacity only depends on the concentration and
amount of electrolyte, while the output power depends on the size of the battery
stack; Secondly, the charge and discharge of vanadium batteries only involve the
transformation of vanadium ion valence states, which can achieve deep discharge;
At the same time, only one ion reacts without any other interference, and the
theoretical lifetime is infinite; When the vanadium battery system is turned
off, there is no self discharge phenomenon in the battery, the response speed is
fast, instantaneous charging can be achieved, and there are no safety hazards;
Finally, the recycling and disposal of batteries is simpler and more convenient
compared to other batteries, and is not harmful to the environment.
The disadvantages are also obvious. Currently, vanadium batteries have a
low energy density, only reaching 40Wh/kg, which is more than ten times higher
than that of first-line lithium-ion batteries; Compared to other liquid flow
batteries such as iron and zinc, vanadium batteries have a much higher cost, a
larger footprint, and a narrow operating temperature range, which limits the
application areas of vanadium batteries.
Read recommendations:
home power generator
PB1000EU
NK01/02 home energy storage all in one
custom home energy storage battery.UPS energy storage power supply harmonic reduction method
Tower crane gravity energy storage technology
Home > 
Inquiry