▎ 摘　　要

NOVELTY - Electrode structure comprises two cathode plate groups (100), positive plate (200) and U-shaped frame (300). The U-shape frame is insulating piece whose notch is upward and inner groove passes through left and right. Two cathode plates are vertically set in U-style frame along front and back direction, and are distributed at intervals along left and right direction in U-style frame. The U-structure are surrounded to form groove chamber with upward notch. The two grid plates (110) are provided with multiple grid holes, and opening sides of grid holes on two grid boards are close to each other. An anode plate (120) is arranged in two cathodic plate groups. USE - Electrode structure used for preparing graphene by graphite powder electrochemical method. ADVANTAGE - The electrode structure utilizes graphite powder as raw material to prepare graphene, reduces raw material cost, provides high preparation efficiency, and utilizes the cathode plate and the anode plate that are coated with the ruthenium oxide coating to improve the electro-catalytic activity and corrosion resistance of cathode and anode plates. DESCRIPTION OF DRAWING(S) - The drawing shows top view of electrode structure. Cathode plate groups (100) Grid plates (110) Anode plate (120) Positive plate (200) U-shaped frame (300)