Abstract: An electrolysis method comprising an electrolysis cell (4), which method uses at least one recirculating flushing medium (50, 60). The invention further relates to an electrolysis system, in particular for carrying out the electrolysis method.

Abstract: A heat management method in a high-temperature steam electrolysis [SOEC] (FIG. 1), to solid oxide fuel cells [SOFCs] (FIG. 2) and/or to a reversible high-temperature fuel cell having the SOEC and SOFC modes of operation [rSOC] (FIG. 1/2). The steam required (1) is supplied from at least one external source and at least one offgas stream (4, 12, 12a) is cooled at least once (3, 11, 18, 35) downstream of the cell [SOEC, SOFC, rSOC] (5, 5a). The internal generation of steam required (1, 38) is effected by internal recuperative heating of externally supplied water (47, 48, 51). The energy from the at least one cooling operation (3, 11, 18, 35) of the at least one offgas stream to be cooled (4, 4a, 12, 12a, 17, 20, 34, 36) is used for this purpose, and at the same time the external steam supply (1, 38) is reduced or shut down.

Abstract: The invention relates to an electrolysis method comprising an electrolysis cell (4), which method uses at least one recirculating flushing medium (50, 60). The invention further relates to an electrolysis system, in particular for carrying out the electrolysis method.