REDOX FLOW BATTERY INCLUDING A SYSTEM FOR DECREASING BY-PASS CURRENTS

The invention relates to a redox flow battery (1000) comprising n electrochemical cells 300 that are electrically connected in series (300), each cell including a cathode (310) and an anode (320) that are separated by a membrane (330) and that are respectively passed through by a catholyte and an an...

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Bibliographic Details
Main Authors MINGANT, Remy, BUREAU DU COLOMBIER, Gérard
Format Patent
LanguageEnglish
French
Published 26.04.2018
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:The invention relates to a redox flow battery (1000) comprising n electrochemical cells 300 that are electrically connected in series (300), each cell including a cathode (310) and an anode (320) that are separated by a membrane (330) and that are respectively passed through by a catholyte and an anolyte originating from a catholyte tank (110) and an anolyte tank (120). The cells are fluidically connected in parallel. A system for decreasing by-pass currents comprises: means (700) for injecting a gas into the inlet ducts (401) and outlet ducts (501) of the cathode and anode of (n-1) cells in order to form gas bubbles; and a device (800) for removing the gas bubbles, said device being placed, on the inlet ducts of the cathode and anode of the (n -1) cells, downstream of the means for injecting the gas and upstream of the cathode and anode of the cells. L'invention porte sur une batterie à flux redox (1000) comprenant n cellules électrochimiques 300 connectées électriquement en série (300), comportant chacune une cathode (310) et une anode (320) séparées par une membrane (330) et traversées respectivement par un catholyte et un anolyte provenant d'un réservoir de catholyte (110) et d'un réservoir d'anolyte (120). Les cellules sont reliées fluidiquement en parallèle. Un système de réduction de courants de dérivation comprend : - des moyens d'injection d'un gaz (700) dans les conduits d'entrée (401) et de sortie (501) des cathode et anode de (n-1) cellules pour former des bulles de gaz; - un dispositif de retrait des bulles de gaz (800) disposé sur les conduits d'entrée des cathode et anode des (n-1) cellules, en aval des moyens d'injection du gaz et en amont de la cathode et de l'anode des cellules.
Bibliography:Application Number: WO2017EP75062