NOVELTY - A cable-type secondary cell (100) has an inner electrode including an inner collector (110) and an inner-electrode active material layer (120) surrounding an outer surface of the inner collector, a separating layer (130) that surrounds the outer surface of the inner electrode, a signal transfer core unit including an electrode assembly having an outer-electrode active material layer (140) surrounding the outer surface of the separating layer and an outer collector (150) surrounding the outer-electrode active layer, and wires, a signal transfer unit, and a protective coating unit.    USE - Cable-type secondary cell for use in a signal transmitting apparatus such as earphone and speaker cable (all claimed).    ADVANTAGE - The cell including the electromagnetic interference shield prevents the interference according to the generation of the electromagnetic field at the power supply unit, thus avoiding the generation of the noise according to the interference at the signal transduction of the apparatus.    DETAILED DESCRIPTION - A cable-type secondary cell has an inner electrode including an inner collector and an inner-electrode active material layer surrounding an outer surface of the inner collector, a separating layer that surrounds the outer surface of the inner electrode and prevents shorting of the electrode, a signal transfer core unit including an electrode assembly having an outer-electrode active material layer surrounding the outer surface of the separating layer and an outer collector surrounding the outer-electrode active layer, and wires, a signal transfer unit, and a protective coating unit. The signal transfer unit has an electromagnetic interference preventing shield surrounding the perimeter of the signal transfer core unit and is arranged in parallel to the electrode assembly. The protective coating unit surrounding the electrode assembly unit and the signal transfer unit simultaneously.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of a cable-type secondary cell.    Cable-type secondary cell (100)    Inner collector (110)    Inner-electrode active material layer (120)    Separating layer (130)    Outer-electrode active material layer (140)    Outer collector (150)