NOVELTY - An ion conductor structural component comprises a polymer matrix, a solvent capable of functioning as a plasticizer, and an electrolyte. The polymer matrix comprises a polymer chain with at least a segment of preset formula (I), a main chain portion of the polymer chain and a side chain portion of the segment.    USE - For a rechargeable battery.    ADVANTAGE - An ion conductor structural component having high ion conductivity and good mechanical strength is produced by a simple and economical process. A high performance rechargeable battery having a high capacity and prolonged charge-and-discharge cycle life is formed by using the ion conductor structural component.    DETAILED DESCRIPTION - An ion conductor structural component (ICSC) having a high ion conductivity and good mechanical strength, comprises a polymer matrix, a solvent capable of functioning as a plasticizer and an electrolyte. The polymer matrix comprises a polymer chain with at least a segment of preset formula (I), a main chain portion of polymer chain and a side chain portion of the segment. The main and side chain portions have an orientation property. The polymer matrix has a cross-linked structure.R1 and R2 = hydrogen or 2C or less alkyl group;    A = polyether group(s); and    R3 = group with alkyl group(s) of more than 6C.    INDEPENDENT CLAIMS are also included for the following:    (i) the production of the ICSC, where a monomer of formula (III), solvent and electrolyte are mixed to obtain a mixture which is subjected to polymerization treatment to form a polymer matrix as ICSC;    (ii) a rechargeable battery comprising an anode, cathode and an ICSC provided between the anode and cathode, where the anode has a face which is opposed to a face of cathode, and the ICSC is arranged such that an ion conductivity in a direction of connecting the face of the anode and face of the cathode is increased; and    (iii) the production of a rechargeable battery, where an ICSC is arranged so that ion conductivity in the direction of the connecting face of anode and face of the cathode, is increased.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic flowchart of the production of an ion conductor structural component.