Electrode Assembly Having Short Circuit Prevention Structure

Abstract: The present invention provides an electrode assembly having a structure that can prevent a short-circuit between ends of a positive electrode plate and a negative electrode plate which are separated by a separator. The electrode assembly has a structure in which one or more first electrode plates, one or more separators, and one or more second electrode plates are stacked. Each of the first electrode plates is provided with a first electrode tab portion that extends further outward in the width direction than the separator from one end of the electrode assembly in the width direction, and one side of the first electrode tab portion in the width direction is not coated with a first active material. At the one end of the electrode assembly, insulating coating is performed on a slitting surface of the second electrode plate that is disposed adjacent to the first electrode tab portion with the separator therebetween. The insulating coating is performed after the second electrode plate is coated with a second active material and slit, and before the first electrode plate, the second electrode plate, and the separator are stacked.

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