Abstract: An all solid state battery includes a cathode layer, an anode layer, and a solid electrolyte layer arranged between the cathode layer and the anode layer, wherein: the solid electrolyte layer includes a first solid electrolyte layer, and a second electrolyte layer arranged in the anode layer side compared to the first solid electrolyte layer; the first solid electrolyte layer contains a first nonwoven fabric, and a first solid electrolyte arranged inside the first nonwoven fabric; the second solid electrolyte layer contains a second nonwoven fabric, and a second solid electrolyte arranged inside the second nonwoven fabric; and in a plan view along a thickness direction, an angle formed by a first fabric direction in the first nonwoven fabric and a second fabric direction in the second nonwoven fabric is 45° or more and 90° or less.

Abstract: A solid-state battery according to the present disclosure includes a cathode layer, an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer. The solid electrolyte layer includes a solid electrolyte, a first binder, and a second binder. A softening temperature of the first binder is higher than that of the second binder. Content of the first binder in the solid electrolyte layer is 0.5% by volume to 4.0% by volume, and also content of the second binder in the solid electrolyte layer is 2.5% by volume to 12.5% by volume. The laminated electrode body in which the solid electrolyte layer is disposed between the cathode layer and the anode layer is densified by pressing the laminated electrode body at a temperature equal to or higher than the softening temperature of the second binder and lower than the softening temperature of the first binder.

Abstract: A secondary battery includes a plurality of laminated bodies. Each of the laminated bodies includes a first current collector, a first electrode layer disposed on one main surface of the first current collector, a second current collector, a second electrode layer disposed on one main surface of the second current collector, and an electrolyte layer disposed between the first electrode layer and the second electrode layer. A pair of adjacent laminated bodies among the laminated bodies is bonded to each other via the first current collectors or via the second current collectors. The bonding strength between the first current collectors is weaker than that between the first current collector and the first electrode layer, and the bonding strength between the second current collectors is weaker than that between the second current collector and the second electrode layer.

Abstract: A main object of the present disclosure is to provide an all solid state battery with excellent cycle characteristics. The present disclosure achieves the object by providing an all solid state battery comprising, in an order of, a cathode CA1, a first solid electrolyte layer, an anode AN, a second solid electrolyte layer, and a cathode CA2, along a thickness direction, wherein: the first solid electrolyte layer contains a first nonwoven fabric, and a first solid electrolyte arranged inside the first nonwoven fabric; the second solid electrolyte layer contains a second nonwoven fabric, and a second solid electrolyte arranged inside the second nonwoven fabric; and in a plan view along the thickness direction, an angle formed by a first fabric direction in the first nonwoven fabric and a second fabric direction in the second nonwoven fabric is 45° or more and 90° or less.

Abstract: A main object of the present disclosure is to provide an all solid state battery with excellent cycle characteristics. The present disclosure achieves the object by providing an all solid state battery comprising, in an order of, a cathode CA1, a first solid electrolyte layer, an anode AN, a second solid electrolyte layer, and a cathode CA2, along a thickness direction, wherein: the first solid electrolyte layer contains a first nonwoven fabric, and a first solid electrolyte arranged inside the first nonwoven fabric; the second solid electrolyte layer contains a second nonwoven fabric, and a second solid electrolyte arranged inside the second nonwoven fabric; and in a plan view along the thickness direction, an angle formed by a first fabric direction in the first nonwoven fabric and a second fabric direction in the second nonwoven fabric is 45° or more and 90° or less.

Abstract: To provide a solid electrolyte layer configured to suppress an increase in resistance, a solid-state battery, and a method for producing the solid-state battery. A solid electrolyte layer for solid-state batteries, wherein the solid electrolyte layer comprises a nonwoven fabric and a solid electrolyte; wherein the solid electrolyte is disposed in an interior of the nonwoven fabric; wherein the solid electrolyte is solid electrolyte particles; and wherein a ratio of an average fiber diameter of the nonwoven fabric to an average particle diameter of the solid electrolyte particles, is 25 or more and 100 or less.

Abstract: The solid electrolyte layer for a solid-state battery includes a nonwoven fabric and a solid electrolyte, and the solid electrolyte is placed inside the nonwoven fabric, and the ratio of the volume of the nonwoven fabric to the volume of the solid electrolyte layer is 35% or more and 54% or less.

Abstract: To improve durability of an all-solid-state battery, a method of manufacturing an all-solid-state battery includes: obtaining a stack having an anode active material layer, a cathode active material layer, a first solid electrolyte layer, and a second solid electrolyte layer, the first solid electrolyte layer and the second solid electrolyte layer being disposed between the anode active material layer and the cathode active material layer, the second solid electrolyte layer containing a sublimational filler; densifying the stack; and subliming the sublimational filler from the second solid electrolyte layer.

Abstract: An all solid state battery includes an electrode structure body including a cathode layer, an anode layer, and a solid electrolyte layer arranged between the cathode layer and the anode layer, wherein: the electrode structure body includes a facing part where the cathode layer and the anode layer face to each other; in a plan view along a thickness direction, a shape of the facing part is a rectangular shape including a longer side and a shorter side; a rate of a length of the longer side with respect to a length of the shorter side is 1.5 or more; the solid electrolyte layer contains a nonwoven fabric, and a solid electrolyte arranged inside the nonwoven fabric; and in the plan view, an angle formed by a longer direction in the facing part and a fabric direction in the nonwoven fabric is 0° or more and 30° or less.

Abstract: A main object of the present disclosure is to provide an all solid state battery with excellent cycle characteristics. The present disclosure achieves the object by providing an all solid state battery comprising, in an order of, a cathode CA1, a first solid electrolyte layer, an anode AN, a second solid electrolyte layer, and a cathode CA2, along a thickness direction, wherein: the first solid electrolyte layer contains a first nonwoven fabric, and a first solid electrolyte arranged inside the first nonwoven fabric; the second solid electrolyte layer contains a second nonwoven fabric, and a second solid electrolyte arranged inside the second nonwoven fabric; and in a plan view along the thickness direction, an angle formed by a first fabric direction in the first nonwoven fabric and a second fabric direction in the second nonwoven fabric is 45° or more and 90° or less.

Abstract: An all solid state battery includes a cathode layer, an anode layer, and a solid electrolyte layer arranged between the cathode layer and the anode layer, wherein: the solid electrolyte layer includes a first solid electrolyte layer, and a second electrolyte layer arranged in the anode layer side compared to the first solid electrolyte layer; the first solid electrolyte layer contains a first nonwoven fabric, and a first solid electrolyte arranged inside the first nonwoven fabric; the second solid electrolyte layer contains a second nonwoven fabric, and a second solid electrolyte arranged inside the second nonwoven fabric; and in a plan view along a thickness direction, an angle formed by a first fabric direction in the first nonwoven fabric and a second fabric direction in the second nonwoven fabric is 45° or more and 90° or less.

Abstract: To improve durability of an all-solid-state battery, a method of manufacturing an all-solid-state battery includes: obtaining a stack having an anode active material layer, a cathode active material layer, a first solid electrolyte layer, and a second solid electrolyte layer, the first solid electrolyte layer and the second solid electrolyte layer being disposed between the anode active material layer and the cathode active material layer, the second solid electrolyte layer containing a sublimational filler; densifying the stack; and subliming the sublimational filler from the second solid electrolyte layer.

Abstract: A main object of the present disclosure is to provide an all solid state battery with good cycle property even when the confining pressure applied to an electrode stacked body is low. The present disclosure achieves the object by providing an all solid state battery comprising an electrode stacked body including a cathode layer, an anode layer, and a solid electrolyte layer placed between the cathode layer and the anode layer; and the electrode stacked body is confined under confining pressure of 0 MPa or more and 2 MPa or less in a thickness direction; the anode layer includes an anode active material with a volume expansion rate due to charge of 105% or more; the solid electrolyte layer includes a solid electrolyte and a binder; and a ratio of the binder in the solid electrolyte layer is 20 volume % or more and 30 volume % or less.

Abstract: A solid-state battery including a cathode layer, a solid electrolyte layer and an anode layer in this order. The solid electrolyte layer includes a first solid electrolyte layer and a second solid electrolyte layer. The first solid electrolyte layer is disposed adjacent to the cathode layer or the anode layer. The second solid electrolyte layer is disposed adjacent to the first solid electrolyte layer. The first solid electrolyte layer includes a solid electrolyte. The second solid electrolyte layer includes a support with pores and the solid electrolyte, and the second solid electrolyte layer is a sheet in which the solid electrolyte is fixed on a surface of and in the pores of the support.

Abstract: To improve durability of an all-solid-state battery, a method of manufacturing an all-solid-state battery includes: obtaining a stack having an anode active material layer, a cathode active material layer, a first solid electrolyte layer, and a second solid electrolyte layer, the first solid electrolyte layer and the second solid electrolyte layer being disposed between the anode active material layer and the cathode active material layer, the second solid electrolyte layer containing a sublimational filler; densifying the stack; and subliming the sublimational filler from the second solid electrolyte layer.

Abstract: A solid electrolyte sheet of the present disclosure comprises a nonwoven fabric and a solid electrolyte disposed inside the nonwoven fabric. The pore diameter of the nonwoven fabric is 15 ?m or less. The ratio of the pore diameter relative to a particle diameter of the solid electrolyte (pore diameter/particle diameter) is 5.0 or more.

Abstract: A solid-state battery including a cathode layer, a solid electrolyte layer and an anode layer in this order. The solid electrolyte layer includes a first solid electrolyte layer and a second solid electrolyte layer. The first solid electrolyte layer is disposed adjacent to the cathode layer or the anode layer. The second solid electrolyte layer is disposed adjacent to the first solid electrolyte layer. The first solid electrolyte layer includes a solid electrolyte. The second solid electrolyte layer includes a support with pores and the solid electrolyte, and the second solid electrolyte layer is a sheet in which the solid electrolyte is fixed on a surface of and in the pores of the support.

Abstract: An all solid state battery includes an electrode structure body including a cathode layer, an anode layer, and a solid electrolyte layer arranged between the cathode layer and the anode layer, wherein: the electrode structure body includes a facing part where the cathode layer and the anode layer face to each other; in a plan view along a thickness direction, a shape of the facing part is a rectangular shape including a longer side and a shorter side; a rate of a length of the longer side with respect to a length of the shorter side is 1.5 or more; the solid electrolyte layer contains a nonwoven fabric, and a solid electrolyte arranged inside the nonwoven fabric; and in the plan view, an angle formed by a longer direction in the facing part and a fabric direction in the nonwoven fabric is 0° or more and 30° or less.

Abstract: An all solid state battery includes a cathode layer, an anode layer, and a solid electrolyte layer arranged between the cathode layer and the anode layer, wherein: the solid electrolyte layer includes a first solid electrolyte layer, and a second electrolyte layer arranged in the anode layer side compared to the first solid electrolyte layer; the first solid electrolyte layer contains a first nonwoven fabric, and a first solid electrolyte arranged inside the first nonwoven fabric; the second solid electrolyte layer contains a second nonwoven fabric, and a second solid electrolyte arranged inside the second nonwoven fabric; and in a plan view along a thickness direction, an angle formed by a first fabric direction in the first nonwoven fabric and a second fabric direction in the second nonwoven fabric is 45° or more and 90° or less.

Abstract: A main object of the present disclosure is to provide an all solid state battery with excellent cycle characteristics. The present disclosure achieves the object by providing an all solid state battery comprising, in an order of, a cathode CA1, a first solid electrolyte layer, an anode AN, a second solid electrolyte layer, and a cathode CA2, along a thickness direction, wherein: the first solid electrolyte layer contains a first nonwoven fabric, and a first solid electrolyte arranged inside the first nonwoven fabric; the second solid electrolyte layer contains a second nonwoven fabric, and a second solid electrolyte arranged inside the second nonwoven fabric; and in a plan view along the thickness direction, an angle formed by a first fabric direction in the first nonwoven fabric and a second fabric direction in the second nonwoven fabric is 45° or more and 90° or less.