Abstract: A battery includes a positive electrode, a negative electrode, and an electrolyte layer located between the positive electrode and the negative electrode. The negative electrode includes a negative electrode current collector and a negative electrode active material layer located between the negative electrode current collector and the electrolyte layer. The negative electrode active material layer includes a plurality of columnar bodies. The columnar bodies include silicon and a filler including a carbon material. The filler is embedded in the columnar bodies.

Abstract: A battery includes a positive electrode, a negative electrode, and an electrolyte layer located between the positive electrode and the negative electrode. The negative electrode includes a negative electrode current collector and a negative electrode active material layer located between the negative electrode current collector and the electrolyte layer. The negative electrode active material layer includes a plurality of columnar bodies. The columnar bodies include silicon and a filler including nickel. The filler is embedded in the columnar bodies.

Abstract: A composite active material particle of the present disclosure includes a lithium silicate phase, a plurality of silicon particles dispersed in the lithium silicate phase, and an electron-conductive material dispersed in the lithium silicate phase, the electron-conductive material including a carbon material.

Abstract: A battery according to an aspect of the present disclosure includes a positive electrode, a negative electrode, and an electrolyte layer located between the positive electrode and the negative electrode. The negative electrode includes a negative electrode current collector and a negative electrode active material layer located between the negative electrode current collector and the electrolyte layer. The negative electrode active material layer has a plurality of columnar bodies containing silicon as a primary component. Young's modulus of the negative electrode active material layer is less than or equal to 25 GPa.

Abstract: A battery includes a first electrode, a second electrode, and a solid electrolyte layer located between the first electrode and the second electrode and including a fibrous material, wherein the solid electrolyte layer includes a first solid electrolyte layer, and a second solid electrolyte layer located between the first solid electrolyte layer and the second electrode, and the content ratio of the fibrous material in the second solid electrolyte layer is higher than the content ratio of the fibrous material in the first solid electrolyte layer.

Abstract: Provided is a cathode material including a cathode active material; a coating layer which coats at least a part of a surface of the cathode active material, and which includes a first solid electrolyte material; and a second solid electrolyte material. The first solid electrolyte material includes Li, M, and X; however, does not include sulfur. M includes at least one element selected from the group consisting of metalloid elements and metal elements other than Li. X includes at least one element selected from the group consisting of Cl and Br.

Abstract: Provided is a cathode material including a cathode active material; a coating layer which coats at least a part of a surface of the cathode active material, and which includes a first solid electrolyte material; and a second solid electrolyte material. The first solid electrolyte material includes Li, M, and X; however, does not include sulfur. M includes at least one element selected from the group consisting of metalloid elements and metal elements other than Li. X includes at least one element selected from the group consisting of Cl and Br.

Abstract: A battery of the present disclosure includes a positive electrode, a negative electrode, and a solid electrolyte layer. The solid electrolyte layer is positioned between the positive electrode and the negative electrode. The solid electrolyte layer includes a solid electrolyte having lithium-ion conductivity. The negative electrode includes: a negative electrode current collector; and a negative electrode active material layer positioned between the negative electrode current collector and the solid electrolyte layer. The negative electrode active material layer has a plurality of columnar particles and is substantially free of an electrolyte. The columnar particles include silicon as a main component.

Abstract: A battery of the present disclosure includes a positive electrode, a negative electrode including graphite and zinc, and a solid electrolyte layer positioned between the positive electrode and the negative electrode. A ratio of a mass of zinc to a sum of a mass of graphite and the mass of zinc in the negative electrode is 10 mass % or more and 60 mass % or less. The above ratio may be 20 mass % or more and 40 mass % or less.

Abstract: A battery of the present disclosure includes: a positive electrode; a negative electrode; and an electrolyte layer disposed between the positive electrode and the negative electrode, wherein the negative electrode includes a negative electrode current collector and a negative electrode active material layer, the negative electrode active material layer includes a plurality of silicon layers and a plurality of lithium silicate layers, and the silicon layer and the lithium silicate layer are alternately stacked.

Abstract: A battery of the present disclosure includes a positive electrode, a negative electrode, and an electrolyte layer located between the positive electrode and the negative electrode. The negative electrode includes a negative electrode current collector and a negative electrode active material layer located between the negative electrode current collector and the electrolyte layer. The negative electrode active material layer includes a first active material layer and a second active material layer located between the first active material layer and the electrolyte layer. The first active material layer contains, as a first active material, a material that forms an alloy with Li. The second active material layer contains a second active material and a solid electrolyte, and does not contain a material that forms an alloy with Li.

Abstract: Provided is a cathode material including a cathode active material; a coating layer which coats at least a part of a surface of the cathode active material, and which includes a first solid electrolyte material; and a second solid electrolyte material. The first solid electrolyte material includes Li, M, and X; however, does not include sulfur. M includes at least one element selected from the group consisting of metalloid elements and metal elements other than Li. X includes at least one element selected from the group consisting of Cl and Br.

Abstract: An all-solid battery that includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer. At least one of the positive electrode layer and the negative electrode layer contains an electrode active material and a solid electrolyte, and a difference between a resistivity associated with ion migration and a resistivity associated with electron migration is 0 k?·cm or more and 100 k?·cm or less in the electrode layer containing the electrode active material and the solid electrolyte.

Abstract: An all-solid-state battery that includes a positive electrode layer, a negative electrode layer and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer. At least one electrode layer selected from the positive electrode layer and the negative electrode layer contains an electrode active material, a sulfide solid electrolyte and fibrous carbon. The fibrous carbon includes at least fibrous carbon components that extend in the direction of lamination of the positive electrode layer, the solid electrolyte layer and the negative electrode layer.

Abstract: A positive electrode material that contains a positive electrode active material, a sulfide solid electrolyte and fibrous carbon. The fibrous carbon is distributed predominantly around the positive electrode active material. An all-solid-state battery that includes a positive electrode layer made from the positive electrode material; a negative electrode layer; and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer.

Abstract: An all-solid battery laminate which includes a positive electrode layer, a negative electrode layer and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer. The negative electrode layer contains a negative electrode active material and a solid electrolyte, and an area ratio of the negative electrode active material is 72% or less in a surface of the negative electrode layer opposite to the solid electrolyte-side surface of the negative electrode layer.

Abstract: An all-solid battery that includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer. At least one of the positive electrode layer and the negative electrode layer contains an electrode active material and a solid electrolyte, and a difference between a resistivity associated with ion migration and a resistivity associated with electron migration is 0 k?·cm or more and 100 k?·cm or less in the electrode layer containing the electrode active material and the solid electrolyte.