ELECTRODE ASSEMBLY

An electrode assembly (100) includes a plurality of electrodes (110, 120) arranged side by side in one direction, and a separator (130) formed in a zigzag shape and configured to insulate the electrodes from each other. The separator (130) includes a plurality of intervening portions (132a) interposed between a pair of electrodes, an upper folded portion (132b), and a lower folded portion (132c). At least one of the upper folded portion (132b) and the lower folded portion (132c) is connected to the electrode.