CABLE-TYPE SECONDARY CELL

The present invention provides a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: an electrode assembly comprising an inner electrode having an inner current collector and an inner electrode active material layer surrounding the outer surface of the inner current collector; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode active material layer surrounding the outer surface of the separation layer and an outer current collector surrounding the outer surface of the outer electrode active material layer, a signal transmitter arranged parallel to the electrode assembly and comprising a core for transmitting a signal, made of a wire; and a shield surrounding the core to prevent electromagnetic interference, and a protection coating simultaneously surrounding the electrode assembly and the signal transmitter.