| 摘要 |
PURPOSE:To enhance the performance and to prolong the life by using a composite of a block-graft copolymer comprising two kinds of specific block polymers and a lithium salt as the electrolyte. CONSTITUTION:A composite of a block-graft copolymer comprising at least one copolymer of repeating units as represented by formulas I, II and a lithium salt is used as the electrolyte. In the formulas I, II, R<1> and R<4> show hydrogen atom, methyl group, or ethyl group R<2> shows hydrogen atom or methyl group, R<3> shows alkyl group, aryl group, acryl group, or silyl group, and M shows a group represented by CH=CH2 or -COOCH3, phenyl group, or replaced phenyl group, m is an integer of 1-45, and p, n are an integer. Since this electrolyte has high ion conductivity, internal resistance is decreased, molding capability and strength are increased, performance is enhanced, and life is lengthened. |
