Disclosed is a method for preparing a high energy density (HED)
electrolyte solution for use in an all-vanadium redox cell, a high energy
density electrolyte solution, in particular an all-vanadium high energy
density electrolyte solution, a redox cell, in particular an all-vanadium
redox cell, comprising the high energy density electrolyte solution, a
redox battery, in particular an all-vanadium redox battery, comprising
the HED electrolyte solution, a process for recharging a discharged or
partially discharged redox battery, in particular an all-vanadium redox
battery, comprising the HED electrolyte solution, a process for the
production of electricity from a charged redox battery, and in particular
a charged all-vanadium redox battery, comprising the HED electrolyte, a
redox battery/fuel cell and a process for the production of electricity
from a redox battery/fuel cell. A method for stabilising an electrolyte
solution for use in a redox cell, in particular for stabilising an
electrolyte solution for use in an all-vanadium redox cell, a stabilised
electrolyte solution, in particular an all-vanadium stabilised
electrolyte solution, a redox cell, in particular an all-vanadium redox
cell, comprising the stabilised electrolyte solution, a redox battery, in
particular an all-vanadium redox battery, comprising the stabilised
electrolyte solution, a process for recharging a discharged or partially
discharged redox battery, in particular an all-vanadium redox battery,
comprising the stabilised electrolyte solution, and a process for the
production of electricity from a charged redox battery, and in particular
a charged all-vanadium redox battery, comprising the stabilised
electrolyte solution are disclosed. Also disclosed are a redox
battery/fuel cell and a process for the production of electricity from a
redox battery/fuel cell.