HIGHLY CONDUCTIVE POLYMER ELECTROLYTES AND SECONDARY BATTERIES INCLUDING THE SAME

摘要

The present invention is directed to novel block copolymers and to novel polymeric electrolyte compositions, such as solid polymer electrolytes that comprises a block copolymer including a first block having a glass transition temperature greater than about 60° C. or a melting temperature greater than about 60° C., and a second block including a polyalkoxide. The polymer electrolyte composition preferably has a shear modulus, G′, measured at 1 rad/sec and about 30° C. and a conductivity, &sgr;, measured at about 30° C., such that i) G′—&sgr; is greater than about 200 (S/cm)(dynes/cm2); and ii) G′ is from about 104 to about 1010 dynes/cm2.