Abstract: A dry space creation system includes a hollow treatment tank configured to house a material to be treated, an inflatable balloon member having a balloon shape configured to be inflated and deflated by supply and exhaust of air, the inflatable balloon member being provided inside the treatment tank, and being configured to be inflated while leaving a partial area in the treatment tank, a dry air supply unit configured to supply dry air into the area, and an inflation air supply unit configured to supply air into the inflatable balloon member.

Abstract: Provided is a manufacturing method for a solid-state battery capable of achieving densification, improvement of productivity, and preferred battery characteristics in a compatible manner. Embodiments provide a manufacturing method for a solid-state battery including an electrode layer composed of a positive electrode layer and a negative electrode layer, and a solid electrolyte layer, the method including: a first pressing step of pressing a layer including at least the solid electrolyte layer; a irregularity forming step of forming irregularities on a surface of the solid electrolyte layer; and a second pressing step of pressing the solid electrolyte layer and the electrode layer to thereby produce a laminate.

Abstract: A method for manufacturing a positive electrode material of a solid-state battery, the method includes a first mixing to mix a positive electrode active material with a conductive aid to generate a first powder, a second mixing to mix a solid electrolyte with the conductive aid to generate a second powder, and a third mixing to mix the first powder with the second powder to generate a third powder. According to the method, it is possible to reduce the amount of a dispersion medium when generating a slurry in manufacturing the positive electrode material.

Abstract: A method for manufacturing a positive electrode material of a solid-state battery, the method includes a first compositing to mix a positive electrode active material with a solid electrolyte to generate a first powder, and a second compositing to mix the solid electrolyte with the first powder under a stirring condition different from a stirring condition in the first compositing to generate a second powder. According to the method, it is possible to reduce the amount of a dispersion medium when generating a slurry in manufacturing the positive electrode material.

Abstract: Provided are a method for producing a battery member and a device for producing a battery member that make it possible to integrate layers of the battery member by way of a roll press, and make it possible to achieve favorable performance of the battery member. A method is for producing a battery member having a positive electrode sheet including at least a positive electrode current collector and a negative electrode sheet including at least a negative electrode current collector, at least one of the positive electrode sheet and the negative electrode sheet having an electrolyte layer laminated thereon.

Abstract: A dry space creation system includes a hollow treatment tank configured to house a material to be treated, an inflatable balloon member having a balloon shape configured to be inflated and deflated by supply and exhaust of air, the inflatable balloon member being provided inside the treatment tank, and being configured to be inflated while leaving a partial area in the treatment tank, a dry air supply unit configured to supply dry air into the area, and an inflation air supply unit configured to supply air into the inflatable balloon member.