Patent ID: 9083055
Filing Date: 2015-07-14
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
1. An electrode for a rechargeable lithium battery, the electrode comprising: a current collector; a first electrode composition layer formed directly on a first surface of the current collector; and a second electrode composition layer farther than the first electrode composition layer from the current collector, wherein each of the first and second electrode composition layers comprises an active material and a conductive material, wherein the amount of the conductive material of the first electrode composition layer is different from the amount of the conductive material of the second electrode composition layer, wherein the weight of the conductive material of the first electrode composition layer is greater than the weight of the active material of the first electrode composition layer, and wherein the second electrode composition layer further comprises about 4 wt % to about 10 wt % of a binder, wherein the first electrode composition layer is further formed at least directly on a second surface of the current collector, wherein the first and second surfaces are opposing each other, and wherein the second electrode composition layer is formed directly on opposing surfaces of the first electrode composition layer farther than the first electrode composition layer from the current collector, wherein the electrode further comprises: an additional first electrode composition layer formed on opposing surfaces of the second electrode composition layer farther than the second electrode composition layer from the current collector, wherein the additional first electrode composition layer has the same wt % of conductive material as the first electrode composition layer; and an additional second electrode composition layer formed on opposing surfaces of the additional first electrode composition layer farther than the additional first electrode composition layer from the current collector, wherein the additional second electrode composition layer has the same wt % of conductive material as the second electrode composition layer.