Patent ID: 6514575
Filing Date: 2003-02-04
Classification: B01D,B03C,B82Y,C23C,C25B,H01M,Y02E,Y10S,Y10T

Abstract:
A method of making an electrode with a surface coated with a magnetic composite with a plurality of boundary regions with magnetic gradients having paths to the surface of said electrode, comprising the steps of:mixing a first solution which includes a suspension of at least approximately 1 percent by weight of inert polymer coated magnetic microbeads containing between approximately 10 percent and approximately 90 percent magnetizable polymer material having diameters at least 0.5 micrometers in a first solvent with a second solution of at least approximately 2 percent by weight of ion exchange polymers in a second solvent to yield a mixed suspension; applying said mixed suspension to the surface of the electrode, said electrode being arranged in a magnetic field of at least approximately 0.05 Tesla which has a component oriented approximately along the normal of said electrode surface; and evaporating said first solvent and said second solvent to yield the electrode with a surface coated with the magnetic composite having a plurality of boundary regions with magnetic gradients having paths to the surface of the electrode.