NOVELTY - Ionically conductive shaped articles are formed by: (a) combining in a vessel a polymer comprising monomer units of vinylidene fluoride and 2-50 mol.% of a perfluoroalkenyl monomer unit having a pendant group, optionally substituted with one or more ether oxygens and, a polar aprotic liquid to form a composition; (b) mixing the composition, at a temperature above the melting point of the composition, at least until it is plastically formable; and (c) forming a shaped article by the application of heat and/or pressure.    USE - The ionically conductive shaped articles are used in electrochemical applications such as batteries, fuel cells, electrolysis cells, ion exchange membranes, sensors, electrochemical capacitors, electro-chromic windows, and modified electrodes, particularly useful in lithium batteries.    ADVANTAGE - The process is improved such that it does not involve forming solutions or liquid or gelled dispersions, nor liquid casting steps, nor extraction steps.    DETAILED DESCRIPTION - A perfluoroalkenyl monomer unit having a pendant group comprises the radical of formula -(OCF2CFR)aOCF2(CFR')bSO2X-(M+)(YZc)d (I).    R and R' = F, Cl or a perfluoroalk-yl group having 1-10C, optionally substituted by one or more ether oxygens;    a = 0, 1 or 2;    b = 0-6;    M+ = H+ or a univalent metal cation;    X = O, C or N with the proviso that d = 0 when X is O, and d = l otherwise, and c = 1 when X is C, and c = 0 when X is N;    when c is l, Y and Z = electron-withdrawing groups selected from CN, SO2Rf, SO2R3, P(O)(OR3)2, CO2R3, P(O)R32, C(O)Rf, C(O)R3, and cycloalkenyl groups formed, where Rf is a perfluoroalkyl group of 1 - 10C optionally substituted with one or more ether oxygens; and    R3 = alkyl group of 1-6C optionally substituted with one or more ether oxygens, or an aryl group optionally further substituted; or, when c = 0, Y may be an electron-withdrawing group represented by the formula -SO2Rf' where Rf' is the radical represented by formula (Ia);    -(Rf''SO2N-(M+)SO2)mRf''' (Ia)    m = 0 or 1;    Rf'' = -CnF2n-;    Rf''' = -CnF2n+1; and    n = 1-10.    An INDEPENDENT CLAIM is also included for the formation of an electrochemical cell.