Patent ID: 8962196
Filing Date: 2015-02-24
Classification: H01M,Y02E

Abstract:
1. A cell comprising: first and second chambers containing a solvent and separated by a wall permeable to the solvent and impermeable to hydronium and/or hydroxyl ions; a first electrode at least partly arranged in the first chamber; a second electrode at least partly arranged in the second chamber; a first redox couple placed in the first chamber in contact with the solvent and comprising a first oxidizer and a first reducer taking part in first oxidation-reduction reactions resulting in an electron exchange with the first electrode; a second redox couple placed in the second chamber in contact with the solvent and comprising a second oxidizer and a second reducer taking part in second oxidation-reduction reactions resulting in an electron exchange with the second electrode, said wall being impermeable to the first and second redox couples; and first enzymes or first microorganisms placed in the first chamber or in the second chamber and promoting third oxidation-reduction reactions different from the first and second oxidation-reduction reactions resulting in the transformation of a first substance to provide a second substance comprising acid or alkaline species, which results in a pH variation and in a consecutive variation of the redox potential.