Electrode assembly and method for manufacturing the same

A method for manufacturing an electrode assembly, the method comprising:

• a step of interposing a plurality of first electrodes between two separators so that the first electrodes are spaced apart from each other to form an electrode stack, the plurality of first electrodes being spaced apart from each other in a length direction of the two separators;
• a step of stacking a plurality of pairs second electrodes on opposite outer surfaces of the electrode stack at alternate positions of a plurality of positions of the first electrodes, each pair of second electrodes stacked overlying a corresponding one of the first electrodes at the opposite outer surfaces of the electrode stack, such that only every other one of the first electrodes is stacked with one of the pairs of second electrodes, and each of the first electrodes is longer than each of the second electrodes in the length direction;
• a step of laminating the separators, the first electrodes, and the second electrodes to each other by heat or a pressure;
• and
• a step of folding the electrode stack at folding parts of each of the two separators located between each of the first electrodes and a respective one of the first electrodes that is immediately adjacent thereto, such that when the electrode stack is in a folded position, opposite ends of all of the first electrodes extend beyond opposite ends of all of the second electrodes in the length direction.