Flow battery

Abstract

[Problem] The purpose of the present invention, taking into consideration the disadvantages of conventional cell stack structures, is to provide a flow battery that resolves these disadvantages, typically an RF battery. [Solution] This flow battery is obtained by constructing a cell stack from a plurality of cell-cartridges that can be inserted and removed. The cell-cartridges each comprise a plurality of cells. In each of the cells, electrodes are connected at low resistance due to small binding force, and leakage of an electrolyte is prevented. Moreover, this flow battery comprises: a plurality of the cell-cartridges; and a backplane that attaches the plurality of cell-cartridges with gaps therebetween so that the cell-cartridges can be physically inserted and removed in a side-by-side state. By providing a rack or unit in which a plurality of the backplanes are mounted and providing an electrolyte tank that can be attached and detached, the invention makes it possible to freely design and change the output and the capacity of the flow battery in accordance with demand.

Dependencies are inferred from the claim text.