Abstract: A main object of the present invention is to provide a battery wherein a unit cell can be uniformly pressurized, and a method for manufacturing the same. The present invention is a battery comprising: a unit cell which is provided with a stacked body comprising a cathode layer, an anode layer, and an electrolyte layer disposed between the cathode layer and the anode layer, and which is provided with a unit cell case accommodating the stacked body; and an exterior battery case which accommodates the unit cell, wherein a fluid capable of pressurizing the unit cell is filled in the outside of the unit cell case and the inside of the exterior battery case; and a portion to be sealed of the unit cell case is positioned outside the exterior battery case.

Abstract: A main object of the present invention is to provide a solid electrolyte material having excellent electron conductivity. The present invention solves the problem by providing the solid electrolyte material including: a solid electrolyte particle; and a carbon coating layer formed on a surface of the solid electrolyte particle.

Abstract: The problem of the present invention is to provide a sulfide solid electrolyte material having excellent ion conductivity. The present invention solves the problem by providing a sulfide solid electrolyte material comprising an M1 element (such as a Li element), an M2 element (such as a Ge element and a P element), and an S element; having a peak in a position of 2?=29.58°±0.50° in an X-ray diffraction measurement using a CuK? line; and having an IB/IA value of less than 0.50 when a diffraction intensity at the peak of 2?=29.58°±0.50° is represented by IA and a diffraction intensity at a peak of 2?=27.33°±0.50° is represented by IB.

Abstract: An object of the present invention is to provide a sulfide solid electrolyte glass producing a tiny amount of hydrogen sulfide. The present invention attains the above-mentioned object by providing a sulfide solid electrolyte glass including Li3PS4, characterized in that Li4P2S7 is not detected by 31P NMR measurement and the content of Li2S as determined by XPS measurement is 3% by mol or less.

Abstract: A method for producing a sulfide solid electrolyte material having a small amount of hydrogen sulfide generation and a high Li ion conductivity. To achieve the above, a method for producing a sulfide solid electrolyte material is provided, including steps of: a providing step for providing a crystallized sulfide solid electrolyte material prepared by using a raw material composition containing Li2S and P2S5; and an amorphizing step for applying amorphization treatment to the crystallized sulfide solid electrolyte material.

Abstract: The problem of the present invention is to provide a sulfide solid electrolyte material having excellent ion conductivity. The present invention solves the problem by providing a sulfide solid electrolyte material comprising an M1 element (such as a Li element), an M2 element (such as a Ge element and a P element), and an S element; having a peak in a position of 2?=29.58°±0.50° in an X-ray diffraction measurement using a CuK? line; and having an IB/IA value of less than 0.50 when a diffraction intensity at the peak of 2?=29.58°±0.50° is represented by IA and a diffraction intensity at a peak of 2?=27.33°±0.50° is represented by IB.