Electrodeposition of functional film on electrode plate relatively high in surface resistivity

摘要: The invention relates to an electrodeposition method for forming a film of electrochemically synthesizable and functional substance, e.g. Prussian blue useful as electrochromic material, on electrode plate having conductive coating relatively high in surface resistivity such tin dioxide or indium trioxide film. A desired uniform thickness can be formed even when the is large 40 cm square still larger by providing with elongate auxiliary element of, example, metal wire foil, which attached outer so extend at least along whole periphery plate.