A rechargeable battery includes: an electrode assembly (110) formed by repeatedly stacking first and second electrodes (11, 12) while interposing a separator (13) therebetween, the first and second electrodes (11, 12) each having an uncoated region (11 b, 12b) and a coated region (11a, 12a); and a pouch (120) having a flexible property and accommodating the electrode assembly (110). The electrode assembly (110) includes a fixing portion (18) where the separator (18) is attached and fixed to the uncoated regions (11 b, 12b) of the first and second electrodes (11, 12).