CABLE-TYPE SECONDARY BATTERY

摘要

The present invention provides a cable-type secondary battery which comprises: an electrode assembly that includes a first polar electrode, a second polar electrode, and a separation membrane or an electrolytic layer, wherein the first polar electrode and the second polar electrode are respectively thin and long and have electrode active materials which are applied to a surface of a current collector having a circular, oval or polygonal end that is orthogonal to a lengthwise direction of the electrodes, and the separation membrane or the electrolytic layer is interposed between said first polar electrode and said second polar electrode; and a cover member capable of covering said electrode assembly, and the invention relates to the cable-type secondary battery, in which said cover member has an upper half portion and a lower half portion around the center of the end that is orthogonal to the lengthwise direction of said cable-type secondary battery, and said upper half portion is a thermally conductive cover member and said lower half portion is an insulated cover member.