Method of depositing a tapered electrode by internal masking

Details Method of depositing a tapered electrode by internal masking Method of depositing a tapered electrode by internal masking

H - Electricity

01

M

H01M 4/88 (2006.01) B05C 3/20 (2006.01) C04B 41/50 (2006.01) C04B 41/87 (2006.01) H01M 8/12 (2006.01) H01M 4/86 (2006.01)

Patent

CA 2059315

ABSTRACT OF THE DISCLOSURE An electrode is deposited on a support by providing a porous ceramic support tube (10) having an open end (14) and closed end (16); masking at least one circumferential interior band (18 and 18') inside the tube; evacuating air from the tube by an evacuation system (30), to provide a permeability gradient between the masked part (18 and 18') and unmasked part (20) of the tube; applying a liquid dispersion of solid electrode particles to the outside surface of the support tube, where liquid flows through the wall, forming a uniform coating (42) over the unmasked support part (20) and a tapered coating over the masked part (18 and 18').

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