Patent ID: 9698406
Date: 2017-07-04
CPC Classifications: H01M,Y02E,Y02P,Y02T,Y10T

Claim:
1. An electrode assembly comprising an electrode stack comprising at least one anode, at least one cathode, and at least one separation film and a plurality of cathode tabs and a plurality of anode tabs for electrically connecting the electrode stack, wherein the electrode tabs are arranged to allow the electrode tabs having the same polarity to be electrically connected to one another while a portion of the electrode tabs having the same polarity are arranged so as not to overlap one another on the same plane, wherein the electrode stack comprises a combination of two or more types of electrode unit having different areas which designate surface areas in a vertical direction to a direction of stacking the electrode units, and wherein an anode of an electrode unit having a larger area and a cathode of an electrode unit having a smaller area face each other at a boundary surface between the electrode units having different areas.