Method of providing a charge barrier flow-through capacitor system
AssigneeBiosource, Inc.
InventorsMarc D. Andelman, Gregory S. Walker
Life of this patent
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Abstract
Flow-through capacitors are provided with one or more charge barrier layers. Ions trapped in the pore volume of flow-through capacitors cause inefficiencies as these ions are expelled during the charge cycle into the purification path. A charge barrier layer holds these pore volume ions to one side of a desired flow stream, thereby increasing the efficiency with which the flow-through capacitor purifies or concentrates ions.
Claims8
A method of providing a flow through capacitor system comprising:
- (a) providing a plurality of electrodes comprising an electrode material having a surface area for electrostatic adsorption of ions, wherein one or more of said plurality of electrodes comprises a pore volume which causes pore volume loss;
- and
- (b) enhancing the ionic efficiency of said flow-through capacitor by compensating for said pore volume loss.
A method of providing a flow through capacitor system comprising:
- (a) providing a plurality of electrodes comprising an electrode material having a surface area for electrostatic adsorption of ions wherein one or more of said plurality of electrodes comprises a pore volume whereby said pore volume adsorbs and expels pore volume ions;
- and
- (b) reducing said adsorption and expulsion of pore volume ions.
A method of providing a flow through capacitor system comprising:
- (a) providing a plurality of electrodes comprising an electrode material having a surface area for electrostatic adsorption of feed ions wherein one or more of said plurality of electrodes comprises a pore volume containing pore ions;
- and
- (b) providing an excess of feed ions to pore volume ions.
Dependencies are inferred from the claim text.