Patent ID: 11894558
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC H

Claim 0:
1. A positive electrode active material comprising a core and a coating layer disposed on the core,
wherein the core comprises Li1+xMO2+y, wherein M is at least one element selected from the group consisting of nickel (Ni), cobalt (Co), and copper (Cu), and 1≤x≤5 and 0≤y≤2, and
the coating layer comprises carbon-based particles,
wherein the carbon-based particle comprises a structure in which a plurality of graphene sheets are connected,
the carbon-based particle has an oxygen content of 1 wt % or more in the carbon-based particle, and
the carbon-based particle has a D/G peak ratio of 1.55 or less during Raman spectrum measurement.