US 9,070,952 B2 · Cable-type secondary battery

Abstract

The present disclosure provides a cable-type secondary battery, comprising: an inner electrode supporter; and a sheet-form laminate of inner electrode-separation layer-outer electrode, spirally wound on the outer surface of the inner electrode supporter, wherein the laminate of inner electrode-separation layer-outer electrode is formed by carrying out compression for the integration of an inner electrode, a separation layer for preventing a short circuit, and an outer electrode. In the cable-type secondary battery of the present disclosure, since the electrodes and the separation layer are adhered to each other and integrated, the separation layer coming into contact with the electrodes absorbs an electrolyte solution to induce the uniform supply of the electrolyte solution into the outer electrode active material layer, thereby enhancing the stability and performances of the cable-type secondary battery.

Claims26

Dependent claims

A cable-type secondary battery, comprising:

an inner electrode supporter;
a sheet-form laminate inner electrode-separation layer, helically wound on an outer surface of the inner electrode supporter;
and
a sheet-form outer electrode wound on an outer surface of the laminate inner electrode-separation layer,
wherein the laminate inner electrode-separation layer is formed by carrying out compression for the integration of an inner electrode and a separation layer for preventing a short circuit, and
wherein the laminate inner electrode-separation layer is helically wound so that each pass of its helical winding is separated by a space.

3 more elements

Dependencies are inferred from the claim text.

Cable-type secondary battery

Life of this patent

Cable-type secondary battery

Life of this patent

Abstract

Claims26