▎ 摘　　要

NOVELTY - A positive electrode composite material comprises an active material containing a lithium-based metal oxide, ion conductors, and graphene. USE - Positive electrode composite material for all-solid-state lithium secondary battery (claimed). Uses include but are not limited to electronics, telecommunication, computer industries, camcorders, mobile phones, notebook personal computer, electric vehicles, uninterruptible power supplies, power tools, and satellites. ADVANTAGE - The positive electrode composite material provides battery has excellent ionic conductivity, electronic conductivity, discharge capacity even at high current density, and durability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) all-solid-state lithium secondary battery, which comprises a positive electrode, a negative electrode, a solid electrolyte layer formed between the positive electrode and the negative electrode, and the positive electrode active material including lithium-based metal oxide, ion conductor and graphene; and (2) manufacture of positive electrode composite material.