This application relates to an
electrode device, its fabrication method, and its application. The
electrode device includes: a conductive
current collector, which is a
metal square
tube structure; a detachable wall body, obtained by
cutting one side of the
metal square
tube structure, wherein the detachable wall body has multiple holes, and the inner wall of the holes is coated with conductive
adhesive; a tubular
electrode, matching the number of holes, inserted into the holes, wherein the tubular electrode has multiple pores; and a sealing layer, covering the connection between the holes and the tubular electrode and the distal end of the tubular electrode; after the detachable wall body is inserted into the tubular electrode and covered by the sealing layer, it is re-fixed to the conductive
current collector by
welding. This method effectively integrates the tubular electrode in a highly ordered and rational manner, greatly improving electrochemical conversion efficiency, and is simple in design, easy to operate, and readily scalable.