Importance

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Abstract

The disclosure discloses a porous electrode assembly, a flow half-cell and a flow cell stack. The porous electrode assembly includes multiple porous electrodes which are stacked, wherein at least two porous electrodes are flow passage electrodes with flow passage, and a part of flow passages of at least two flow passage electrodes are mutually communicated to form a flow field. The flow field used for circulating an electrolyte and formed by communicating the flow passages one another is arranged in at least one porous electrode of the porous electrode assembly, and the electrolyte flows in the porous electrodes under a flow guide effect of the flow field, so that surface areas, permeated by the electrolyte, of solid parts of the porous electrodes are enlarged, flow resistance of the porous electrodes to the flowing of the electrolyte is reduced, and a flow pressure difference is reduced.

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First Claim