All solid-state battery

A solid-state battery comprising a positive electrode, a negative electrode, and a solid electrolyte represented by

• [A].sub.u.({[N=P(Z).sub.2 ].(MX).sub.v }.sub.w)
• wherein
• a) A is a single ionic polymer is at least one of
• i) an oligoethylene oxypolyphosphazene compound having a sulfone group or
• ii) an oligoalkylene oxypolyphosphazene compound having a fluoroalkylsulfone group, the respective oxypolyphosphazenes having a structure represented by one of formulas (I), (II), (III), and (IV):
• ##STR3## R is one or a combination of methyl, ethyl and propyl, R' is hydrogen or methyl, h and k, or h' and k' are each the average number of repeating ethyleneoxy units or alkyleneoxy units and are each a real number in the range of 0.ltoreq.h.ltoreq.20, 0.ltoreq.k.ltoreq.20, 0.ltoreq.h'.ltoreq.20, 0.ltoreq.k'.ltoreq.20, and l, n, l' and n' are each an integer of 0 or greater and in the range of 3.ltoreq.l+n+l'+n'.ltoreq.200,000;
• b) Z is a group represented by Y--(OCH.sub.2 CH.sub.2).sub.y --O-- wherein Y is one or a combination of methyl, ethyl and propyl, and y is a real number in the range of 1.ltoreq.y.ltoreq.30;
• c) M is an element selected from the main group and subgroup of Groups I and II, transition metals from Groups III to VIII, and lanthanide;
• d) X is at least one anion selected from the group consisting of CF.sub.3 SO.sub.3.sup.--, ClO.sub.4.sup.--, BF.sub.4.sup.--, AsF.sub.6.sup.--, PF.sub.6.sup.-- ;
• e) u is the ratio of [A] to {[N=P(Z).sub.2 ].(MX).sub.v }.sub.w and is a real number in the range of 0<u.ltoreq.5;
• f) v is the ratio of (MX) to [N=P(Z).sub.2 ] and is a real number of 0.001.ltoreq.v.ltoreq.5;
• and
• g) w is an integer in the range of 3.ltoreq.w.ltoreq.200,000.