| abstract |
An object of the present invention is to provide a multi-cell all-solid-state battery using a solid-state electrolyte that is free from liquid junction, has high heat resistance, high safety, and can be charged and discharged at a high voltage. An all-solid battery comprising a positive electrode, a negative electrode and a solid electrolyte, wherein a positive electrode active material constituting the positive electrode and a negative electrode active material constituting the negative electrode are held on both sides of a single current collector The solid electrolyte contains lithium element, phosphorus element and sulfur element, and the solid 31 P-NMR spectrum of the solid electrolyte is crystallized at 90.9 ± 0.4 ppm and 86.5 ± 0.4 ppm. The all-solid-state bipolar battery is characterized in that it has a peak due to, and the ratio of the crystal in the solid electrolyte is 60 to 100 mol%. [Selection] Figure 1 |