Patent ID: 9379410
Filing Date: 2016-06-28
CPC Classification: H01M,Y02E,Y02P,Y10T

Claim Text:
1. A method of manufacturing a lithium-ion battery cell, comprising: providing a cathode having a first coating layer, a second coating layer, and a substrate between the first and second coating layers, wherein the substrate includes an exposed edge, and wherein the cathode has a given length; providing a first anode having a first coating layer, a second coating layer, and a substrate between the first and second coating layers, wherein the first anode has a length greater than the given length; providing a first separator disposed between the first coating layer of the cathode and the second coating layer of the first anode; providing a second anode having a first coating layer, a second coating layer, and a substrate between the first and second coating layers, wherein the second anode has a length greater than the given length thereby forming a gap between the first and second anodes where the exposed edge of the cathode is located; providing a second separator disposed between the second coating layer of the cathode and the first coating layer of the second anode; and covering the exposed edge of the cathode during a subsequent manufacturing operation by folding the second separator over edges of both: (a) the cathode's first coating layer, substrate, and second coating layer; and (b) the first anode's first coating layer, substrate, and second coating layer, to prevent a contaminant from entering the gap.