Abstract: The invention provides an electrode body for a cylindrical lithium battery, which is formed by winding a laminated body including a negative electrode sheet, a first separator, a positive electrode sheet, a plurality of cathode tabs and a plurality of anode tabs, wherein the negative sheet and the positive sheet have a negative electrode coating and a positive electrode coating, respectively. In the present invention, the positive electrode coating is provided on the positive electrode sheet in a specific configuration to increase the coating area of the positive electrode coating, thereby increasing the capacitance of the electrode body.

Abstract: The invention provides an electrode body for a cylindrical lithium battery, which is formed by winding a laminated body including a negative electrode sheet, a first separator, a positive electrode sheet, a plurality of cathode tabs and a plurality of anode tabs, wherein the negative sheet and the positive sheet have a negative electrode coating and a positive electrode coating, respectively. In the present invention, the positive electrode coating is provided on the positive electrode sheet in a specific configuration to increase the coating area of the positive electrode coating, thereby increasing the capacitance of the electrode body.

Abstract: An end cover structure of a prismatic battery is disclosed, comprising a rectangular plate and a rivet head. The rectangular plate has a first surface and a second surface opposite to the first surface, and the second surface is a plane. The rivet head is located on the first surface of the rectangular plate and separates the first surface into a first planar area and a second planar area. The height of the first planar area is lower than that of the second planar area, and the first planar area and the second planar area are adjacent to the rivet head.