▎ 摘　　要

NOVELTY - High-rate lithium ion battery material comprises 0.7-1.5% graphene added in positive electrode material as conductive agent, and 0.3-2.5% graphene added in negative electrode material as conductive agent. USE - High-rate lithium ion battery material. ADVANTAGE - The method effectively reduces wound cell diameter for ease of molding. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of lithium-ion battery comprising taking positive pole material, stirring, coating on aluminum foil, roller pressing to obtain positive pole piece, cutting, and repeating above steps for negative pole material; wounding into cylindrical battery and measuring short circuit; soldering aluminum foil to electrode lug with nickel and copper foil, bending cylinder power and fixing; placing in plastic film packaging, and testing battery short circuit.