▎ 摘　　要

NOVELTY - A modified graphene-doped lithium-manganese oxide cathode material comprises 55 pts. wt. graphene oxide, 65 pts. wt. lithium manganese oxide, 25 pts. wt. 45% lithium ferric nitrate solution, 3 pts. wt. graphite and 3 pts. wt. adhesive material. USE - Modified graphene-doped lithium-manganese oxide cathode material is used for lithium-ion battery. ADVANTAGE - The lithium-ion battery obtained using the modified graphene-doped lithium-manganese oxide cathode material has excellent self-discharge protection, and storage stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of modified graphene-doped lithium-manganese oxide cathode material.