Patent ID: 8102642

Claim:
A capacitor comprising: a plurality of electrode substrates, each of the plurality of electrode substrates having a coated portion and an uncoated portion, the coated portion being coated with a coating material comprising: an activated carbon material with high surface area; a water soluble binder selected from the group consisting of poly vinyl alcohol, poly acrylic acid, polymethacrylic acid, polyethylene oxide, polyacrylamide, poly-N-isopropylearylamide, poly-N,N-dimethylacrylamide, polyethyleneimine, polyoxyethylene, polyvinylsulfonic acid, poly(2-methoxyethoxyethoxyethylene), butadiene-acrylonitrile, and combinations thereof; and a water soluble thickener; a separator inserted between adjacent substrates of the plurality of electrode substrates; and an electrolyte.