SECONDARY BATTERY

The present secondary battery includes: a first spacer (600, 600A, 600B, 600C) disposed to face a first electrode tab (220, 220A); a second spacer (600, 600A, 600B, 600C) disposed to face a second electrode tab (250); and an insulating sheet(700) disposed to cover the electrode assembly (200, 200A), the first spacer (600, 600A, 600B, 600C), and the second spacer (600, 600A, 600B, 600C), wherein the insulating sheet and the first spacer (600, 600A, 600B, 600C) are connected to each other, and the insulating sheet and the second spacer (600, 600A, 600B, 600C) are connected to each other.