Results for s??parateur translation from French to English

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French

l'invention concerne un syst�me de batterie redox � flux continconstitu� d'une pluralit� de cellules mont�es en s�rie �lectrique d�limit�e par un arrangement empil� et r�p�titif d'un s�parateur intercellulaire conducteur ayant g�n�ralement une fonction bipolaire, d'une �lectrode positive, d'une membrane �changeuse d'ions, d'une �lectrode n�gative et d'un autre s�parateur intercellulaire conducteur. on met en oeuvre le syst�me de batterie redox en faisant circuler un �lectrolyte de demi-pile positif contenant de ions r�ductibles et oxydables d'un premier couple � travers les compartiments contenant les �lectrodes positives, et un �lectrolyte de demi- pile n�gatif contenant de ions r�ductibles et oxydables d'un deuxi�me couple � travers les compartiments contenant les �lectrodes n�gatives en cascade dans un mode d'�coulement de courant contraire ou convergent. la diff�rence de la tension d'�l�ment entre la premi�re cellule et la derni�re cellule de la pile essensiblement r�duite et les courants de d�rivation sont en grande partie �limin�s, d'o� une efficacit� faradique globale accrue. on d�crit une architecture � pile cellulaire munie de conduits permettant d'effectuer les deux �coulements de contre-courant en cascade des �lectrolytes positif et n�gatif. l'emploi altern� de membranes cationiques et anioniques compense le cheminement d�s�quilibr� de l'eau � travers les membranes.

English

a redox flow battery composed of a plurality of cells in electrical series defined by a stacked and repetitive arrangement of a conductive intercell separator having a generally bipolar function, a positive electrode, an ion exchange membrane, a negative electrode and another conductive intercell separator, is operated by flowing a positive half-cell electrolyte containing reducible and oxidizable ions of a first redox couple through the compartments containing the positive electrodes and a negative half-cell electrolyte containing reducible and oxidizable ions of a second redox couple through the compartments containing the negative electrodes in cascade in a counter or equi-current mode. the difference of cell voltage between the first and the last cell of the stack is sensibly reduced and by-pass currents are substantially eliminated thus resulting in an increased overall faradic efficiency. a cell stack architecture provided with ducting for implementing the two counter current cascaded flows of the positive and negative electrolytes is described. the alternated used of cationic and anionic membranes compensate for unbalanced water transport through the membranes.

Last Update: 2011-07-27
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