All-solid-state battery and method for manufacturing same

The invention relates to an all-solid-state battery and a manufacturing method thereof. The all-solid-state battery (100) has a structure in which a positive electrode current collector (6), a positive electrode layer (20) containing a positive electrode active material (3) and a solid electrolyte (1), a solid electrolyte layer (10) containing a solid electrolyte (2), a negative electrode layer (30) containing a negative electrode active material (4) and a solid electrolyte (5), and a negative electrode current collector (7) are laminated in this order. The solid electrolyte (2) is formed from a first material (21) and a second material (22) having a lower ionic conductivity than the first material (21). The first material (21) is formed of first particles (40), and at least a part of the surface of the first particles (40) is coated with the second material (22). 本发明涉及全固体电池及其制造方法，全固体电池(100)具有正极集电体(6)、包含正极活性物质(3)和固体电解质(1)的正极层(20)、包含固体电解质(2)的固体电解质层(10)、包含负极活性物质(4)和固体电解质(5)的负极层(30)、以及负极集电体(7)依次层叠而成的结构。固体电解质(2)由