Patent ID: 9299988
Filing Date: 2016-03-29
CPC Classification: H01M,Y02E,Y02P,Y10T

Claim Text:
1. An electrode sheet having an electrode active material applied to one major surface or opposite major surfaces of a current collector sheet, the electrode sheet configured for being cut to manufacture a plurality of unit electrode plates, wherein first notch portions are formed at an upper side of the electrode sheet such that the first notch portions are arranged at intervals corresponding to a width of each of the unit electrode plates, and second notch portions corresponding to the first notch portions are formed at a lower side of the electrode sheet, wherein an upper end cut side and an opposed lower end cut side are formed at each of the second notch portions, the upper end cut side being smaller in size than the lower end cut side, and wherein the electrode sheet is configured to be cut along a cutting line that interconnects a middle point of one of the first notch portions and a middle point of the upper end cut side of the corresponding one of the second notch portions and wherein said cutting line separates adjacent unit electrode plates on the electrode sheet.