▎ 摘　　要

NOVELTY - The device (100) has an outer surface (102a) which is configured to define an interior volume of the tube (102). A first hollow fiber (104) is positioned in the interior volume of the tube. The first hollow fiber is comprised with a first membrane (106) that is configured to define an interior volume of the first hollow fiber. The first electrodes (108) are positioned in the interior volume of the first hollow fiber. A first portion of a first electrolyte fluid is positioned in the interior volume of the first hollow fiber. The second electrodes (112) are positioned in the interior volume of the tube and outside of the interior volume of the first hollow fiber. A second electrolyte fluid (114) is positioned in the interior volume of the tube and outside of the interior volume of the first hollow fiber. USE - Electrochemical device. ADVANTAGE - The electrochemical flow device allows for elimination of extra battery units. The electric flow device energy density is improved. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of electrochemical device. Electrochemical device (100) Tube (102) Outer surface (102a) First hollow fiber (104) First membrane (106) First electrode (108) Second electrode (112) Second electrolyte fluid (114)