Manufacturing method for all-solid-state battery and all-solid-state battery

• Main Authors: HOZUMI, MASATO, TSUJIKO,AKIRA, MASUOKA, SHIZUKA, KOJIMA, SHINJI
• Format: Patent
• Language: English
• Published: 10.02.2016
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention relates to a manufacturing method for an all-solid-state battery and the all-solid-state battery. The manufacturing method for the all-solid-state battery including a positive electrode layer (1), a negative electrode layer (2), a solid electrolyte layer (3), a positive electrode current collector layer (4), and a negative electrode current collector layer (5) is provided. The positive electrode layer and the negative electrode layer contain active substances, respectively. At least one of the positive and negative electrode layers is an electrode layer (100) containing a sulfide-based solid electrolyte and having a first main surface (10) and a second main surface (20). The manufacturing method includes: shielding at least a central portion (11) of the first main surface and at least a central portion (21) of the second main surface from an ambient atmosphere; and exposing an outer peripheral portion of the electrode layer to an atmosphere having a dew-point temperature of -30 DEG C or higher, with at least the central portion of the first main surface and at least the central portion of the second main surface shielded from the atmosphere.