Abstract: An anode configured to decrease the rate of expansion in thickness direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; and wherein, of the carbon composite material particles contained in the anode layer, a percentage of first carbon composite material particles that an angle ? formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 0° or more and less than 45°, is more than 52%.

Abstract: An anode configured to decrease the rate of area increase in planar direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; and, of the carbon composite material particles contained in the anode layer, a percentage of first carbon composite material particles that an angle ? formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 50° or more and 90° or less, is more than 35%.

Abstract: A carbon composite material configured to suppress a decrease in the charge and discharge capacity of batteries, the carbon composite material comprising Si and a carbon material having an aspect ratio of 2.7 or more and 7.5 or less.

Abstract: An anode configured to decrease the rate of expansion in thickness direction which is due to battery charge and discharge, the anode comprises an anode collector and an anode layer on at least one surface of the anode collector; the anode layer comprises a carbon composite material comprising Si and a first carbon material having an aspect ratio of more than 1, and a second carbon material having an aspect ratio of more than 1; the carbon composite material is carbon composite material particles; the second carbon material is second carbon material particles; and, of the carbon composite material particles contained in the anode layer, a percentage of those that an angle ? formed by the surface of the anode collector and a line of the carbon composite material particles in long axis direction is 50° or more and 90° or less, is 62% or more.

Abstract: A negative electrode includes: a negative electrode current collector; and a negative electrode active material layer, wherein the negative electrode active material layer includes a first active material, a second active material, an ion conductive polymer, and a conductive material, and the negative electrode active material layer has a structure provided with a void around the first active material.

Abstract: A negative electrode includes: a negative electrode current collector; and a negative electrode active material layer, wherein the negative electrode active material layer includes a first active material, a second active material, and a gel electrolyte, the gel electrolyte includes a polymer and a conductive material, the negative electrode active material layer includes the gel electrolyte in a surrounding of the first active material, and a concentration of the gel electrolyte in the surrounding of the first active material is higher than a concentration of the gel electrolyte in a region of the negative electrode active material layer other than the surrounding of the first active material.

Abstract: A bipolar electrode includes a cathode substrate that configures a current collector, a cathode composite layer formed on the cathode substrate, an anode substrate that configures a current collector, an anode composite layer that is formed on the anode substrate and that is divided into plural regions by a groove between adjacent regions of the plurality of regions, with the anode substrate as a bottom portion of the groove, and an elastic layer having elastic properties that is formed between the anode substrate and the anode composite layer. The electrode includes the cathode composite layer, the cathode substrate, the anode substrate, the elastic layer, and the anode composite layer stacked in this sequence.

Abstract: The power storage device according to the present disclosure includes a battery stack and a deformation detection sensor for detecting a deformation amount of the battery stack, and an average expansion rate of the battery stack in a range of 80 to 100% of charge is 2.8 times or more of an average expansion rate of the battery stack in a range of 0 to 80% of charge rate.

Abstract: The all-solid-state battery includes a positive electrode layer, a separator layer, and a negative electrode layer. The separator layer includes a sulfide solid electrolyte. In a cross section parallel to the thickness direction of the separator layer, a line analysis is performed by SEM-EDX to measure an atom concentration of sulfur and an atom concentration of iodine on a straight line extending from the negative electrode layer to the positive electrode layer in parallel to the thickness direction. A regression line is derived from the results of the line analysis, and the regression line has a slope of 0.019 to 0.036. The independent variable of the regression line is a position in the thickness direction of the separator layer. The dependent variable of the regression line is a ratio of the atom concentration of iodine to the atom concentration of sulfur.

Abstract: Provided is a method for producing a sulfide-based solid electrolyte with a balance between the ion conductivity of the sulfide-based solid electrolyte and the heat generation amount of an electrode layer containing the sulfide-based solid electrolyte during an electrode reaction. Disclosed is a method for producing a sulfide-based solid electrolyte comprising a sulfide glass-based material that contains at least one lithium halide compound selected from the group consisting of LiI, LiBr and LiCl, the method comprising immersing the sulfide glass-based material, which is at least one sulfide glass-based material selected from the group consisting of a sulfide glass and a glass ceramic, in an organic solvent having a solubility parameter of 7.0 or more and 8.8 or less, for 1 hour to 100 hours.

Abstract: A binder composition includes a dispersion medium and a group of binder particles. The group of binder particles is dispersed in the dispersion medium. The group of binder particles include a polymer material. The polymer material includes a constitutional unit originated from vinylidene difluoride. The group of binder particles has a number-based particle size distribution. The particle size distribution satisfies the following conditions: “0.19?X?0.26”, “0.69?Y?0.76”, and “0?Z?0.05”. Here, “X” represents a frequency of particles each having a particle size of less than or equal to 40 ?m. “Y” indicates a frequency of particles each having a particle size of more than 40 ?m and less than or equal to 110 ?m. “Z” indicates a frequency of particles each having a particle size of more than 110 ?m and less than or equal to 250 ?m.

Abstract: The all-solid-state battery includes a positive electrode layer, a separator layer, and a negative electrode layer. The separator layer includes a sulfide solid electrolyte. In a cross section parallel to the thickness direction of the separator layer, a line analysis is performed by SEM-EDX to measure an atom concentration of sulfur and an atom concentration of iodine on a straight line extending from the negative electrode layer to the positive electrode layer in parallel to the thickness direction. A regression line is derived from the results of the line analysis, and the regression line has a slope of 0.019 to 0.036. The independent variable of the regression line is a position in the thickness direction of the separator layer. The dependent variable of the regression line is a ratio of the atom concentration of iodine to the atom concentration of sulfur.

Abstract: The all-solid-state battery includes a positive electrode layer, a separator layer, and a negative electrode layer. The separator layer includes a sulfide solid electrolyte. In a cross section parallel to the thickness direction of the separator layer, a line analysis is performed by SEM-EDX to measure an atom concentration of sulfur and an atom concentration of iodine on a straight line extending from the negative electrode layer to the positive electrode layer in parallel to the thickness direction. A regression line is derived from the results of the line analysis, and the regression line has a slope of 0.019 to 0.036. The independent variable of the regression line is a position in the thickness direction of the separator layer. The dependent variable of the regression line is a ratio of the atom concentration of iodine to the atom concentration of sulfur.

Abstract: Provided is a method for producing a sulfide-based solid electrolyte with a balance between the ion conductivity of the sulfide-based solid electrolyte and the heat generation amount of an electrode layer containing the sulfide-based solid electrolyte during an electrode reaction. Disclosed is a method for producing a sulfide-based solid electrolyte comprising a sulfide glass-based material that contains at least one lithium halide compound selected from the group consisting of LiI, LiBr and LiCl, the method comprising immersing the sulfide glass-based material, which is at least one sulfide glass-based material selected from the group consisting of a sulfide glass and a glass ceramic, in an organic solvent having a solubility parameter of 7.0 or more and 8.8 or less, for 1 hour to 100 hours.

Abstract: A control device for a vehicle lamp controls an adjustment of an optical axis angle of a vehicle lamp provided with a vibration generating source that vibrates at a first frequency, and the control device includes an acceleration sensor provided in the vehicle lamp and configured to sample an acceleration at a second frequency that is a non-integral multiple of the first frequency, a receiving unit that receives a signal indicating an output value from the acceleration sensor, and a controlling unit that executes control of adjusting the optical axis angle of the vehicle lamp on the basis of the output value from the acceleration sensor.

Abstract: Provided is a method for producing a sulfide-based solid electrolyte with a balance between the ion conductivity of the sulfide-based solid electrolyte and the heat generation amount of an electrode layer containing the sulfide-based solid electrolyte during an electrode reaction. Disclosed is a method for producing a sulfide-based solid electrolyte comprising a sulfide glass-based material that contains at least one lithium halide compound selected from the group consisting of LiI, LiBr and LiCl, the method comprising immersing the sulfide glass-based material, which is at least one sulfide glass-based material selected from the group consisting of a sulfide glass and a glass ceramic, in an organic solvent having a solubility parameter of 7.0 or more and 8.8 or less, for 1 hour to 100 hours.

Abstract: A slurry is prepared by mixing a solid electrolyte material, an electrode active material, and a dispersion medium. The eluted amount of a halogen element in the dispersion medium in the slurry is measured. When the eluted amount is within a reference range, the slurry is rated as a good slurry. An electrode is produced by applying the good slurry to a surface of a base material and drying.

Abstract: The nonaqueous electrolyte secondary battery disclosed herein includes an electrode assembly including a positive electrode and a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a positive electrode current collector and a positive electrode active material layer formed on the positive electrode current collector. The positive electrode active material layer has an average film thickness of 100 ?m or more. The positive electrode active material layer includes a positive electrode active material having a mean particle diameter of 10 ?m or less, and, as an electroconductive material, carbon nanotubes and another electroconductive carbon material. The carbon nanotubes have an average length of 1 ?m or more to 2 ?m or less, and an average diameter of 10 nm or less. In a cross-sectional electron microscope image of the positive electrode active material layer, the electroconductive material is dispersed.

Abstract: A lithium ion secondary battery includes a housing, an electrode assembly, an electrolyte solution, and a porous member. The electrode assembly, the electrolyte solution, and the porous member are accommodated in the housing. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The positive electrode and the negative electrode are stacked with the separator being interposed. The positive electrode, the negative electrode, and the separator are stacked in a vertical direction at the time of setting of the lithium ion secondary battery. The porous member is in contact with at least a part of a side surface of the electrode assembly. The porous member holds the electrolyte solution. The porous member is smaller in average pore diameter than each of the positive electrode and the negative electrode.

Abstract: A particle having a core of elemental chalcogen elements, such as sulfur, selenium and tellurium, and a coating of at least one polymeric layer on the core. A functionalized conductive carbon material is dispersed in the core. A cathode containing the particles and a battery constructed with the cathode are also provided.