abstract |
One of the objects of the present invention is to provide a sulfide solid electrolyte with good workability and high ionic conductivity during battery manufacture. The present invention relates to a sulfide solid electrolyte containing lithium, phosphorus and sulfur, which has a diffraction peak A at 2θ=25.2±0.5deg and a diffraction peak A at 2θ=29.7±0.5deg in powder X-ray diffraction using CuKα rays B, In solid 31 P-NMR measurement, at least one of the peaks obtained by peak separation of the peaks observed in the range of 60 to 120 ppm has a half width value of 500 to 800 Hz. |