The invention relates to an
energy storage arrangement (1) with a
redox energy storage device (7) which is connected via channel systems (4) to two
electrolyte containers (3), an MHD module (10) which comprises two magnetohydrodynamic pump modules (20) and an evaluation and
control unit (12), and at least two valve assemblies (30), wherein the evaluation and
control unit (12) is configured to control fluid valves of the valve assemblies (30) such that active
redox flow cells (8) of the
redox energy storage device (7) are fluidically connected to the channel systems (4) and inactive redox flow cells (8) of the redox energy storage device (7) are separated from the channel systems (4), wherein the evaluation and
control unit (12) is further configured to control the two magnetohydrodynamic pump modules (20), each of which comprises a
magnet device (26) and an
electrode device (22), which is configured toto conduct an
electric current provided by the evaluation and control unit (12) through the
electrolyte (5) in a channel section (28) of a corresponding channel
system (4), so that, in conjunction with a
magnetic field generated by the magnetic device (26), a
Lorentz force is created which selectively accelerates the
electrolyte (5) in the channel section (28), so that a resulting pressure build-up causes a volume flow of the
electrically conductive electrolyte (5) through the channel
system (4) and the active redox flow cells (8).