▎ 摘　　要

NOVELTY - Graphene material is added to a fixing agent after grinding and put in a steel ingot in fixed abrasive tool for 30-40 min to form a graphene sheet having a thickness of 150-200 mu . The graphene sheet is cut into multiple pieces, a multi-crystal layer is coated on each sheet and pressed for 1-2 hours in a pressing tool. USE - Manufacturing method of solar energy battery used for calculator. ADVANTAGE - The manufacturing method has the advantages of high migration rate, good energy transfer efficiency, environment-friendly, while the manufactured battery is capable of absorbing light source to the utmost extent, making it suitable for efficient use in the calculator.