The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 2001
Filed:
Apr. 12, 1999
Regents of the University of California, Oakland, CA (US);
Abstract
An electrically regeneratable electrochemical cell (,) for capacitive deionization and electrochemical purification and regeneration of electrodes includes two end plates (,), one at each end of the cell (,). A new regeneration method is applied to the cell (,) which includes slowing or stopping the purification cycle, electrically desorbing contaminants and removing the desorbed contaminants. The cell (,) further includes a plurality of generally identical double-sided intermediate electrodes (,) that are equidistally separated from each other, between the two end electrodes (,). As the electrolyte enters the cell, it flows through a continuous open serpentine channel (,) defined by the electrodes, substantially parallel to the surfaces of the electrodes. By polarizing the cell (,), ions are removed from the electrolyte and are held in the electric double layers formed at the carbon aerogel surfaces of the electrodes. The cell (,) is regenerated electrically to desorb such previously removed ions.