Patent ID: 9343773
Filing Date: 2016-05-17
CPC Classification: H01M,Y02E,Y02P,Y02T

Claim Text:
1. A cable-type secondary battery comprising: an inner electrode comprising at least two anodes arranged in parallel, the anode extending longitudinally and having a horizontal cross section of a predetermined shape; an electrolyte layer surrounding the inner electrode and serving as an ion channel; an outer electrode comprising a tubular cathode having a horizontal cross section of a predetermined shape and completely surrounding the electrolyte layer and the at least two anodes; and a protection coating surrounding the outer electrode; wherein (i) the anode includes a current collector and an anode active material layer formed on an outer surface of the current collector; and (ii) the cathode includes a current collector and a cathode active material layer formed on the inside of the current collector; wherein the anode active material layer is formed from an active material including an active material particle selected from the group consisting of carbonaceous materials, lithium-containing titanium composite oxides (LTOs), metals (Me) including Si, Sn, Li, Cd, Ce, Ni, and Fe, alloys of the metals (Me), oxides (MeOx) of the metals (Me), composites of the metals (Me) and carbon, and mixtures thereof, the cathode active material layer is formed from an active material including an active material particle selected from the group consisting of LiCoO wherein M1 and M2 are each independently any one selected from the group consisting of Al, Ni, Co, Fe, Mn, V, Cr, Ti, W, Ta, Mg, and Mo, wherein x, y, and z are each independently an atomic fraction of each component in the oxide; wherein 0≦x<0.5, 0≦y<0.5, 0≦z<0.5, x+y+z≦1; and wherein the electrolyte layer is formed from an electrolyte including a gel polymer electrolyte selected from the group consisting of PEO, PVdF, PMMA, and PAN, and a lithium salt selected from the group consisting of LiCl, LiBr, LiI, LiClO wherein the protection coating acts as an insulator, is formed on an outer surface of the outer electrode to protect the outer electrode from moisture in the air, and includes a polymer resin.