Comb type bipolar electrode elements and battery stacks thereof

Abstract From the Canadian patent

A bipolar electrode element has an electrically conductive, chemically inert, generally flat wall having first and second opposing faces, each of the first and second faces having a plurality of spaced, parallel grooves therein with the spaced grooves in the first face being laterally staggered from the space grooves in the second face, first and second spaced and substantially parallel electrodes having first edges disposed within first and second respective grooves of said space parallel grooves in said first face and extending generally perpendicular from the plane of the inert wall; and a third electrode having a first edge disposed within a groove in said second face and extending …