Patent ID: 9142821
Filing Date: 2015-09-22
Classification: H01M,Y02E,Y02P

Abstract:
1. An electrode assembly for a secondary battery, comprising: at least one cathode plate formed by coating an electrode current collector with a cathode active material; at least one anode plate formed by coating an electrode current collector with an anode active material; a separator interposed between each of the at least one cathode plate and each of the at least one anode plate, the separator having a plurality of vents formed therein; wherein the separator is folded around a side of each of the at least one cathode plate and the at least one anode plate at a respective folded portion, wherein the separator follows a serpentine path such that each successive one of the folded portions along the path is on an opposing side of the electrode assembly from a previous one of the folded portions along the path, and wherein the vents are formed at the folded portions.