Patent ID: 9300006
Filing Date: 2016-03-29
CPC Classification: H01M,Y02E,Y02P,Y10T

Claim Text:
1. A battery cell configured to have a structure in which an electrode assembly comprising a separator disposed between a cathode and an anode is mounted in a battery case, wherein the battery case comprises an upper case and a lower case, the upper case and/or the lower case being provided with a receiving part, in which the electrode assembly is mounted, the electrode assembly comprises a plurality of electrodes or unit cells stacked in a height direction on the basis of a plane, two or more of the electrodes or the unit cells having different planar sizes, the receiving part of the battery case is provided with stair-like steps corresponding to an external appearance of the electrode assembly, and the electrode assembly includes two or more electrode groups, the two or more electrode groups being of different types selected from the group consisting of: