NOVELTY - Polyamide single-ion conducting polymer electrolyte, is new.    USE - The polyamide single-ion conducting polymer electrolyte is useful for manufacturing polyamide single-ion conducting polymer composite film, and battery (all claimed), e.g. lithium ion batteries.    ADVANTAGE - Solid polymer electrolytes have enhanced ionic conductivity, and enable facile ionization and high mobility of the lithium atoms through the delocalization of negative charges on the N atoms arising from the strong electron withdrawing capability of the bis(sulfonyl) groups.    DETAILED DESCRIPTION - Polyamide single-ion conducting polymer electrolyte comprises structural formula (I) or (II), is new.    M=H or an alkali metal;    R1=independently H, halogen, an optionally substituted (1-4C) alkyl, an optionally substituted (1-4C) alkoxy, an optionally substituted (1-4C) alkyl amino, an optionally substituted (1-4C) dialkyl amino, an optionally substituted (C 1 -C4) acyl, or an optionally substituted (C 1 -C4)NR3C(O), where the optional substituents are each independently H, halogen, (1-4C) alkyl, (1-4C) alkoxy, (1-4C) halo alkyl, (1-4C) haloalkoxy, (1-4C) alkyl amino, or (1-4C) acyl;    R2=independently H, halogen, an optionally substituted (1-4C) alkyl, an optionally substituted (1-4C) alkoxy, an optionally substituted (1-4C) alkyl amino, an optionally substituted (1-4C) dialkyl amino, an optionally substituted (1-4C) acyl, or an optionally substituted (1-4C)NR3C(O), where the optional substituents are each independently H, halogen, (1-4C) alkyl, (1-4C) alkoxy, (1-4C) halo alkyl, (1-4C) haloalkoxy, (1-4C) alkyl amino, or (1-4C) acyl;    R3, R4 and R5=H or an optionally substituted (1-4C) alkyl;    m1 and m2=1-4; and    n=1-100, or selected to provide a polymer with a weight average molecular weight in the range of about 10000 to about 300000.    INDEPENDENT CLAIMS are included for:    (1) a method for synthesizing a polyamide single-ion conducting polymer electrolyte;    (2) a method for manufacturing a polyamide single-ion conducting polymer composite film, which involves: (a) dissolving a polyamide single-ion conducting polymer electrolyte and second polymer in a solvent to form a solution mixture; and (b) evaporating the solvent at a temperature between about 50 degrees C to about 150 degrees C to form the polyamide single-ion conducting polymer composite film; and    (3) a battery, comprising the polyamide single-ion conducting polymer electrolyte.