Coin-shaped battery and method for producing same

This coin-shaped battery (101) comprises: one or more laminates (1 to 3) each constituted by layering a positive electrode layer (11, 21, 31), a solid electrolyte layer (12, 22, 32), and a negative electrode layer (13, 23, 33); and an outer casing that is constituted by a metal case (7) and a metal opening-sealing plate (8) and in which the plurality of laminates (1 to 3) are sealed. Each laminate (1 to 3) is compressed by pressurization. The average thickness of the solid electrolyte layer (12, 22, 32) in the respective laminates (1 to 3) is from 5 µm to 100 µm.