Laser-induced graphene (LIG) has emerged as a promising material for flexible electronic and energy storage applications due to its high conductivity, mechanical flexibility, and direct fabrication. In this thesis, LIG was printed on a 125 µm-thick polyimide substrate using a 1065 nm-wavelength CO₂ laser. Laser parameters, including velocity, frequency, power, and repetition rate, were carefully optimized to achieve uniform, conductive graphene structures. Three geometries were fabricated: a Greek cross structure to measure sheet resistance using the Van der Pauw method, a square geometry of 0.5 cm² to evaluate anode and cathode electrochemical behavior, and an interdigitated structure consisting of one anode digit and two cathode digits.