Patent ID: 9048464
Filing Date: 2015-06-02
Classification: B05D,C02F,C23C,H01M,Y02E

Abstract:
1. A method of forming a bi-polar electrode having ion exchange polymers on opposite faces of a porous substrate, the method comprising: providing an electrode substrate with activated carbon layers, said electrode substrate having a first side and a second side, said first side having a first face and said second side having a second face, said first side and second side are opposite; wherein said first face and said second face each have an outer perimeter band void of the activated carbon layers; providing a first gasket to the outer perimeter band of the first face, and a second gasket to the outer perimeter band of the second face; clamping the electrode substrate between two rigid plates to form a first air-tight chamber on the first side of the electrode substrate and a second air-tight chamber on the second side of the electrode substrate; adding a first polymerizable monomer mixture into the first air-tight chamber, the first polymerizable monomer mixture comprising a polymerizable monomer having an anion exchange group or a group that can be converted to an anion exchange group; adding a second polymerizable monomer mixture into the second air-tight chamber, the second polymerizable monomer mixture comprising a polymerizable monomer having a cation exchange group or a group that can be converted to the cation exchange group; and polymerizing the first and second polymerizable monomer mixtures.