Patent ID: 8343324
Filing Date: 2013-01-01
Classification: B01D,F04B

Abstract:
1. An electrochemical pump comprising an electrochemical cell, wherein the electrochemical cell comprises: a) a first compartment comprising a first electrode and a first electrolyte solution, the first electrolyte solution comprising a first redox couple different in composition from the first electrode and which participates in a first electrode reaction and a first group of ions different from the first redox couple species, wherein neither of the species of the first redox couple is a gas; b) a second compartment comprising a second electrode and a second electrolyte solution, the second electrolyte solution comprising a second redox couple different in composition from the second electrode and which participates in a second electrode reaction and a second set of ions different from the second redox couple species, wherein neither of the species of the second redox couple is a gas; and c) an ionically conducting separator comprising an ion exchange membrane separating the first and second compartment, the separator being in fluid communication with the first and second electrolyte solution, wherein the separator allows transport of at least some species of the first and second groups of ions wherein the separator allows transport of at least some species of the first and second groups of ions from the first compartment to the second compartment in response to a first potential, and from the second compartment to the first compartment in response to a second potential.