Patent ID: 8440351

Claim:
A positive electrode for a rechargeable lithium ion battery comprising: a lithium-manganese-based compound core; and a polymer disposed on the lithium-manganese-based compound core, wherein the polymer has a glass transition temperature (T g ) ranging from about 80 to about 400° C. and is selected from the group consisting of a polyamide (PA) resin, a polyimide (PI) resin, a polyamideimide (PAI) resin, a polysulfone (PS) resin, a polybenzimidazole (PBI) resin, a polytetrafluoroethylene (PTFE) resin, a copolymer thereof, and a combination thereof, and wherein the polymer is in a concentration range of about 0.01 to about 3 parts by weight based on 100 parts by weight of the lithium-manganese-based compound.