Cell and cell stack of a redox flow battery, and method for producing said cell stack

Abstract

The invention relates to a cell (2) of a redox flow battery, having at least two cell frame elements (7, 8, 9, 10), having a membrane (12) and having two electrodes (11), wherein the at least two cell frame elements, the membrane and the two electrodes close off two mutually separate cell interior spaces (4), wherein, in the at least two cell frame elements, at least four separate ducts (13, 14, 15, 16) are provided in such a way that the two cell interior spaces can be flowed through by different electrolyte solutions, and wherein the cell is, aside from the at least four separate ducts, of liquid-tight form. The invention also relates to a cell stack (1) of a redox flow battery having at least one such cell. Here, the invention proposes a particular form of the cell frame of the cell stack, and an inexpensive and simple method for manufacturing the cell stack. Here, all of the stack components, that is to say the at least two cell frame elements, a membrane and two electrodes, are cast together with one another in a cast housing using a liquid plastic, and are thus permanently joined in a standardizable working step. In this way, automated series manufacture is possible.

Dependencies are inferred from the claim text.