Patent ID: 6573002
Filing Date: 2003-06-03
Classification: B01J,H01M

Abstract:
A method for purifying an electrolyte solution comprisinga) adding an adsorbent that has a support material to which basic groups are bound to an electrolyte solution that contains protic impurities whereby the protic impurities chemically adsorb to the adsorbent, and separating the adsorbent from the electrolyte solution, or b) adding an adsorbent that has a support material to which basic groups are bound to one or more solvents that contain protic impurities whereby the protic impurities chemically adsorb to the adsorbent, separating the adsorbent from the one or more solvents, and adding one or more electrolyte salts to the one or more solvents to form an electrolyte solution, or c) placing an adsorbent that has a support material to which basic groups are bound into a column and passing an electrolyte solution that contains protic impurities through the column whereby the protic impurities chemically adsorb to the adsorbent, or d) placing an adsorbent that has a support material to which basic groups are bound into a column and passing one or more solvents that contain protic impurities through the column whereby the protic impurities chemically adsorb to the adsorbent, and adding one or more electrolyte salts to the one or more solvents to form an electrolyte solution.