Difference between nickel-chromium flow battery and all-vanadium flow battery

What is the difference between a flow battery and a convection battery?

While flow batteries ought to be able to operate at relatively high current densities, as convection can be employed to deliver reactants to the electrode surface, flow batteries have typically been operated at ~50 mA / cm 2, a current density consistent with conventional batteries without convection.

What is the difference between a flow battery and a conventional battery?

In contrast, in a flow battery the electro-active materials are stored externally and the electrodes serve only as structural components and passive source/sink of electrons. Second, because of the dual functions of its electrodes described above, a conventional battery has minimal or no scale-up advantages. Instead, it can only be scaled-out.

What is a true flow battery?

True flow batteries have all the reactants and products of the electro-active chemicals stored external to the power conversion device. Systems in which all the electro-active materials are dissolved in a liquid electrolyte are called redox (for reduction/oxidation) flow batteries.

What is a flow battery?

A flow battery is an electrochemical device that converts the chemical energy of the electro-active materials directly to electrical energy, similar to a conventional battery and fuel cell. However, the electro-active materials in a flow battery are stored mostly externally and are introduced into the device only during operation.