| 摘要 |
PURPOSE:To obtain the subject polymer for the electrolyte in secondary battery, etc., having excellent electric properties and stability with time without deteriora tion of efficiency according to generation of a dendrite by comprising of polyphosphagen having a polyoxyethylene chain containing a sulfonic acid metal salt and a metal salt. CONSTITUTION:Hexachlortriphosphonitrile is introduced in a polymerization tube and sealed under reduce pressure, then polymerized at 250 deg.C for 8 hour to obtain dichlorphosphonitrile polymer, thus oligoethylene glycol monoallyletherlithium salt, etc., is added to be substituted to obtain polyphosphagen having an allyl group at the side group. Next, said polyphosphagen is reacted with lithium sulfite, etc., to be sulfonated and mixed with salts expressed by the formula MX (M is main group or subgroup of I or II group in periodic table, transient group or lanthanide element of III-VII group or onium ion; X is anion such as CF3SO3<->, etc.) to afford a polymer expressed by formula I [formula II is formula III-V (3<=b=l+m+n<=20000; 0<=h<=15; 0<=k<=22.5; R and R' are methyl or ethyl, etc.; a is 0.001-4]. |
