Method for drawing power from electrochemical cells using...

H - Electricity – 02 – J

Patent

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H02J 7/00 (2006.01) H02M 3/00 (2006.01) H01M 4/46 (2006.01) H02J 7/34 (2006.01)

Patent

CA 2759684

The invention describes a method for drawing power from all types of electrochemical power sources in which power is drawn using frequency pulses with the condition that the specific impedance of each anode of the electrochemical cells is a maximum of 1.87 .OMEGA. .cndot. cm2. The invention also describes a power source for carrying out this method, said power source containing an electrochemical power source (1), which is filled with an electrolyte solution, and a DC/DC power converter, in which the DC/DC power converter contains a transformer (4) of which the primary circuit comprises a. the electrochemical power source (1), b. a shunt circuit (2), and c. a switching element with a control unit (3), and of which the secondary circuit comprises d. an inductive energy storage means (5) and e. a storage capacitor (6), wherein the load (7) is connected to the secondary circuit of the power source.

Linvention concerne un procédé permettant de prélever du courant dans tous les types de cellules électrochimiques. Le prélèvement de courant est effectué par des impulsions de fréquence à la condition que limpédance spécifique de chaque anode des cellules électrochimiques soit au maximum de 1,87 O. cm2. Linvention concerne également une source de courant pour mettre en uvre ce procédé qui contient une source de courant électrochimique (1) remplie de solution électrolytique et un convertisseur de courant continu en courant continu. Le convertisseur de courant continu en courant continu contient un transformateur (4) dont le circuit de courant primaire est constitué a. de la source de courant électrochimique (1), b. dun circuit de commutation dérivé (2) et c. dun élément de commutation avec unité de commande (3), et dont le circuit de courant secondaire est constitué d. dun accumulateur dénergie inductif (5) et e. dun condensateur accumulateur (6), le consommateur (7) étant raccordé au circuit de courant secondaire de la source de courant.

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