Patent ID: 11916207
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A battery cell, comprising:
an electrode main body, in which a positive electrode and a negative electrode, each having an electrode mixture is coated on at least one surface of a metallic current collector, and a separation film interposed between the positive electrode and the negative electrode are wound together;
a cylindrical metal can, which accommodates the electrode main body together with an electrolyte solution, the cylindrical metal can having an open end;
a cap assembly closing the open end of the cylindrical metal can; and
a sealing tape attached to an exterior surface of the electrode main body so as to fix a distal end portion of the electrode main body, the sealing tape including a heat conductive material for accelerating heat conduction between the electrode main body and the metal can,
wherein the sealing tape includes:
a first conductive layer including the heat conductive material, the first conductive layer being a first film consisting of a metal material directly contacting an interior surface of the cylindrical metal can; and
a second conductive layer having an adhesive and heat conductive pigment particles dispersed within the adhesive, the second conductive layer bonding the first conductive layer to the exterior surface of the electrode main body, and all of the heat conductive pigment particles are dispersed in a region adjacent to an interface between the second conductive layer and the first conductive layer.