ELECTRO-CONDUCTIVE ADHESIVE FOR CDI ELECTRODE AND PREPARATION OF ELECTRODE USING THE SAME

摘要

PURPOSE: An electro-conductive adhesive is provided to increase adhesion between the surfaces by reducing the lifting and air gap of the surface of a carbon sheet as a current collector and porous activated carbon as an electrode material. CONSTITUTION: A method for manufacturing an electrode using conductive adhesives for CDI electrode comprises the steps of: adding 2~10 wt% binder of alginate or propylene glycol alginate, 2~10 wt% cross-linking agent of organic acid or their derivative, and 2~15 wt% conductive material of carbon black to 70~94 wt% dispersing medium of deionized water to manufacture conductive adhesives; applying the conductive adhesive on the surface of a carbon sheet, and heating and drying the coating material to prepare a conductive adhesive layer with a dry thickness of 0.2~50 micron; applying activated charcoal slurry as an electrode material; and pressing the dried material to improve the homogeneity of the electrode.