Abstract: A battery includes electrodes including a positive electrode and a negative electrode; and a particle-containing insulating part that is provided between the positive electrode and the negative electrode and includes particles and a resin, wherein the particles are a material capable of undergoing an endothermic dehydration reaction and have a flat shape with an aspect ratio of 2/1 or more.

Abstract: A battery includes a positive electrode formed with a positive electrode active material layer containing a positive electrode active material at least on one side of a positive electrode current collector, a negative electrode formed with a negative electrode active material layer containing a negative electrode active material at least on one side of a negative electrode current collector, a separator, and an electrolyte containing solid particles. The capacity area density (mAh/cm2) of the negative electrode active material layer is equal to or higher than 2.2 mAh/cm2 and equal to or lower than 10 mAh/cm2, and the capacity area density (mAh/cm2) of a gap in the negative electrode active material layer is equal to or higher than 5.9 mAh/cm2 and equal to or lower than 67 mAh/cm2.

Abstract: A battery is provided. The battery includes a cathode; an anode; an interlayer provided between the cathode and the anode; wherein the interlayer includes an electrolytic solution, a polymer compound, and one or more of a polyphosphate salt, a melamine salt, a metal hydroxide, and a metal hydrate.

Abstract: A cell in which thermal welding of a laminate packaging is performed so that the thickness of a thermal welded portion including an electrode terminal is larger than that of a thermal welded portion including no electrode terminal.

Abstract: A secondary battery includes: a cathode; an anode; an electrolytic solution; and an interlayer provided between the cathode and the anode and including one or more of a polyphosphate salt, a melamine salt, a melamine derivative represented by Formula (1), a metal hydroxide, and a metal hydrate, the interlayer partially entering into the cathode, the anode, or both. (R1 to R6 are each one of a hydrogen group (—H), a monovalent hydrocarbon group, a monovalent hydroxyl-group-containing hydrocarbon group, a monovalent group obtained by bonding one or more monovalent hydrocarbon groups and one or more oxygen bonds (—O—), a monovalent group obtained by bonding one or more monovalent hydroxyl-group-containing hydrocarbon groups and one or more oxygen bonds, and a monovalent group obtained by bonding two or more thereof.

Abstract: A cell is provided. The cell includes a cell element including a positive electrode, a negative electrode, an electrolyte and a laminate film including an exterior layer, a metal layer, an interior layer, and a welded layer formed of the interior layer; wherein a thickness of the welded layer is larger than 5 ?m in a flat portion of the interior layer, wherein the welded layer increases in thickness from the flat portion to an end portion of the welded layer, and wherein when a thickness of the laminate film is t, a thickness of the interior layer is p and a thickness of the laminate film in the welded layer is t1, a following equation is satisfied: t×2?p×2+5<t1<t×2?5 (?m).

Abstract: A battery includes a positive electrode formed with a positive electrode active material layer containing a positive electrode active material at least on one side of a positive electrode current collector, a negative electrode formed with a negative electrode active material layer containing a negative electrode active material at least on one side of a negative electrode current collector, a separator, and an electrolyte containing solid particles. The capacity area density (mAh/cm2) of the negative electrode active material layer is equal to or higher than 2.2 mAh/cm2 and equal to or lower than 10 mAh/cm2, and the capacity area density (mAh/cm2) of a gap in the negative electrode active material layer is equal to or higher than 5.9 mAh/cm2 and equal to or lower than 67 mAh/cm2.

Abstract: A cell is provided. The cell includes a cell element including a positive electrode, a negative electrode, an electrolyte and a laminate film including an exterior layer, a metal layer, an interior layer, and a welded layer formed of the interior layer; wherein a thickness of the welded layer is larger than 5 ?m in a flat portion of the interior layer, wherein the welded layer increases in thickness from the flat portion to an end portion of the welded layer, and wherein when a thickness of the laminate film is t, a thickness of the interior layer is p and a thickness of the laminate film in the welded layer is t1, a following equation is satisfied: t×2?p×2+5<t1<t×2?5 (?m).

Abstract: Between an anode active material layer and a separator, a recess impregnation region of an anode side in which electrolytes and solid particles are disposed and including a recess that is located between adjacent anode active material particles positioned on the outermost surface of the anode active material layer is formed. Between a cathode active material layer and a separator, a recess impregnation region of a cathode side in which electrolytes and solid particles are disposed and including a recess that is located between adjacent cathode active material particles positioned on the outermost surface of the cathode active material layer is formed. The solid particles in the recess impregnation regions of the cathode side and the anode side have a concentration that is 30 volume % or more.

Abstract: Provided is a separator including: a substrate; and a surface layer formed on at least one surface of the substrate, and having a higher porosity than that of the substrate. It is preferable that the surface layer includes: a first layer having convexities and concavities existing as cavities; and a second layer formed between the first layer and the separator, and the second layer has a higher porosity than that of the substrate, and the first layer has a higher porosity than that of the second layer. In this case, it is preferable that the porosity of the substrate is from 25% to 40%, the porosity of the first layer is from 60% to 90%, and the porosity of the second layer is from 40% to 65%.

Abstract: Provided is a battery including a positive electrode, a negative electrode, an electrolytic solution, and a particle-containing resin layer that contains particles and a resin. A shape of the particles includes a plane, a plane rate of the particles is greater than 40% and equal to or less than 100%, and a refractive index of the particles is equal to or greater than 1.3 and less than 2.4.

Abstract: Provided is a battery including a positive electrode, a negative electrode, a separator, and an electrolyte that contains particles, a resin, and an electrolytic solution. The shape of the particles includes a plane, a plane rate of the particles is greater than 40% and equal to or less than 100%, and a refractive index of the particles is equal to or greater than 1.3 and less than 2.4.

Abstract: A particle size D50 of the particle is not less than 50 nm and not more than 450 nm, or not less than 750 nm and not more than 10,000 nm. A refractive index of the particle is not less than 1.3 and less than 2.4. One of a mass ratio between the particles and the matrix polymer compound (particles/matrix polymer compound) and a mass ratio between the particles and the electrolyte salt (particles/electrolyte salt) is not less than 15/85 and not more than 90/10.

Abstract: A battery includes electrodes including a positive electrode and a negative electrode; and a particle-containing insulating part that is provided between the positive electrode and the negative electrode and includes particles and a resin, wherein the particles are a material capable of undergoing an endothermic dehydration reaction and have a flat shape with an aspect ratio of 2/1 or more.

Abstract: A battery is provided including a battery element including a positive electrode, a negative electrode, and an electrolyte; and a laminate film for packaging the battery element, wherein the laminate film includes a first portion including a first portion thickness, a second portion including a second portion thickness and a third portion including a third portion thickness, wherein the second portion is located between the first portion and the third portion, wherein a first side of the third portion is not in contact with a second side of the third portion, and the third portion thickness includes a thickness of the first side and the second side of the third portion, wherein the first portion thickness of at least a part of the first portion is thinner than the second portion thickness, wherein the third portion thickness of at least a part of the third portion is thicker than the first portion thickness, and wherein the third portion includes an edge portion of the laminate film.

Abstract: A battery is provided including a battery element including a positive electrode, a negative electrode, and an electrolyte; and a laminate film for packaging the battery element, wherein the laminate film includes a first portion including a first portion thickness, a second portion including a second portion thickness and a third portion including a third portion thickness, wherein the second portion is located between the first portion and the third portion, wherein a first side of the third portion is not in contact with a second side of the third portion, and the third portion thickness includes a thickness of the first side and the second side of the third portion, wherein the first portion thickness of at least a part of the first portion is thinner than the second portion thickness, wherein the third portion thickness of at least a part of the third portion is thicker than the first portion thickness, and wherein the third portion includes an edge portion of the laminate film.

Abstract: A gel electrolyte layer is provided between a positive electrode and a second electrode. The gel electrolyte layer is a layer containing particles, a resin material, and a polymer compound for retaining the resin material, and having a heat capacity per unit area of 0.0001 J/Kcm2 or more and a heat capacity per unit volume of 3.0 J/Kcm3 or less.

Abstract: The present invention relates to a layer disposed between a positive electrode and a negative electrode, which is a layer containing particles and a resin material, and having a porous structure with a heat capacity per unit area of 0.0001 J/Kcm2 or more and a heat capacity per unit volume of 3.0 J/Kcm3 or less.

Abstract: A cell in which thermal welding of a laminate packaging is performed so that the thickness of a thermal welded portion including an electrode terminal is larger than that of a thermal welded portion including no electrode terminal.

Abstract: A cell in which thermal welding of a laminate packaging is performed so that the thickness of a thermal welded portion including an electrode terminal is larger than that of a thermal welded portion including no electrode terminal.