HIGH PERFORMANCE LITMUS-POLYMER CELL COMPRISING SILICON NANO-PARTICLES SUBSTITUTED WITH POLYMER AND SELF-ASSEMBLE BLOCK COPOLYMER

摘要

PURPOSE: A lithium-polymer battery is provided to have excellent safety against charging/discharging cycle and high battery capacity by using a polymer electrolyte which comprises a negative electrode active material capable of enduring against volume expansion and a block copolymer. CONSTITUTION: A lithium-polymer battery comprises a negative electrode active particles of which polymers are formed on a surface, a positive electrode, and a polymer electrolyte which comprises a block copolymer. The negative electrode active particles are silicon nano particles. The polymer formed on the surface of the negative electrode active particles comprises polyalkyleneoxide. The polyalkyleneoxide is polyethyleneoxide. The block copolymer is a self-assembling block copolymer. The polymer electrolyte has a lamella structure.