Abstract: An object of the present disclosure is to provide a secondary battery having excellent cyclability by using a sulfur-based active material as a negative-electrode active material while preventing a reaction between an elated polysulfide and a positive electrode. The metal-ion secondary battery comprises a negative electrode comprising a sulfur-containing compound as a negative-electrode active material, a positive electrode and an electrolyte, and has a polymer gel layer on a surface of the positive electrode.

Abstract: A lithium ion battery negative electrode is used in a lithium ion battery. In the electrode, a negative electrode active material which is a Si alloy composed of a eutectic structure of a Si phase and a Si2Ti phase and another negative electrode active material layer containing a binder having a three-dimensional structure are formed on a negative electrode current collector.

Abstract: Provided is a lithium ion battery whose manufacturing process is simple and which has high energy density and heat resistance.

Abstract: A positive electrode for a lithium ion secondary battery that includes a positive electrode combination material having a positive electrode active material that produces a potential of 4.5 V or higher on the basis of metal lithium; a conduction aid; and a binder. The binder contains an aqueous binder as its main constituent, and the sum SE of the surface area SA of the positive electrode active material in the positive electrode combination material and the surface area SC of the conduction aid therein is 90 to 400 cm2/cm2 per unit coated area of the positive electrode combination material.

Abstract: An on-vehicle battery includes a lead storage battery and a secondary battery. The secondary battery is connected in parallel with the lead storage battery. The secondary battery 14 has a positive electrode and a negative electrode. The positive electrode includes, as a positive electrode active material, a spinel-type lithium-nickel-manganese oxide. The negative electrode includes, as a negative electrode active material, at least one of graphite, soft carbon, hard carbon, and an alloy-based material containing an Si element.

Abstract: To provide information useful to a variety of users engaged in real estate transactions. Provided is an information processing device including a graph rendering unit that renders a graph expressing an anticipated transaction price of a second real estate property, based on actual transaction prices and required transaction times of a first real estate property already bought or sold, and a display control unit that causes the graph to be displayed on a client device, wherein the graph includes an element expressing a probability distribution of the anticipated transaction price, and an element expressing an anticipated required transaction time corresponding to the anticipated transaction price.

Abstract: To provide information useful to a variety of users engaged in real estate transactions. Provided is an information processing device, including an appraisal value calculation unit that calculates an appraisal value of a real estate property by using a function which includes appraisal factors of the real estate property as variables and which is different depending on a location of the real estate property, an appropriate price calculation unit that calculates an appropriate price of the real estate property based on the appraisal value, an assessment creation unit that creates an assessment of the real estate property that includes the appropriate price, and a display control unit that causes the assessment to be displayed on a client device.

Abstract: A lithium-ion secondary battery of the present invention comprises a positive electrode including a positive electrode active material composite formed by compositing a lithium silicate-based material and a carbon material, a negative electrode including a negative electrode active material containing a silicon, and an electrolyte. The lithium-ion secondary battery satisfies 0.8<B/A<1.2, where A is irreversible capacity of the positive electrode and B is irreversible capacity of the negative electrode.

Abstract: A negative electrode mixture for a nonaqueous electrolyte secondary cell according to the present invention includes: a negative electrode active material; a conductive assistant; and a binder. The binder contains a copolymer of vinyl alcohol and an alkali metal-neutralized product of ethylene-unsaturated carboxylic acid.

Abstract: Provided is a novel lithium silicate-based material useful as a positive electrode material for lithium ion secondary battery. The lithium silicate-based compound is represented by Li1.5FeSiO4.25. The lithium silicate-based compound is a compound including: lithium (Li); iron (Fe); silicon (Si); and oxygen (O), and expressed by a composition formula, Li1+2?FeSiO4+??c (?0.25???0.25, 0?c?0.5). The lithium silicate-based compound, of which iron (Fe) is trivalent, exerts a remarkable chemical stability as compared to Li2FeSiO4.

Abstract: Affords a method of growing, across the entirety of a major surface of a first III-nitride crystal, a second III-nitride crystal by HVPE, in an ambient temperature higher than 1100° C. The present III-nitride crystal growth method comprises: a step of preparing a first III-nitride crystal (10) having an alkali-metal atom concentration of less than 1.0×1018 cm?3; and a step of growing a second III-nitride crystal (20) onto a major surface (10m) of the first III-nitride crystal (10) by HVPE, in an ambient temperature higher than 1100° C.

Abstract: A lithium-ion secondary battery of the present invention comprises a positive electrode including a positive electrode active material composite formed by compositing a lithium silicate-based material and a carbon material, a negative electrode including a negative electrode active material containing a silicon, and an electrolyte. The lithium-ion secondary battery satisfies 0.8<B/A<1.2, where A is irreversible capacity of the positive electrode and B is irreversible capacity of the negative electrode.

Abstract: This binder for use in a positive electrode for a lithium ion secondary battery contains a copolymer of both vinyl alcohol and an alkali-metal-neutralized ethylenically unsaturated carboxylic acid.

Abstract: A compound having a high reduction resistance and being capable of sufficiently performing a function as an electronic conductive additive when added to a positive electrode active material as an electronic conductive additive is provided. In a method for producing a cobalt cerium compound including a step of depositing a hydroxide containing cobalt and cerium in an aqueous solution containing cobalt ions and cerium ions by changing the pH of the aqueous solution and thereafter performing a treatment of oxidizing the hydroxide, the ratio of the cerium ions contained in the aqueous solution containing the cobalt ions and the cerium ions is set to be more than 5% by atom and 70% by atom or less with respect to the sum of the cobalt ions and the cerium ions before the hydroxide is deposited.

Abstract: An alkaline secondary battery includes a positive electrode containing a positive electrode material having nickel hydroxide, a cobalt-cerium compound containing cobalt and cerium, and a compound with at least one element of calcium, yttrium, europium, holmium, erbium, thulium, ytterbium and lutetium. Further, the positive electrode material is prepared by powder mixing nicked hydroxide particles, a cobalt-cerium compound, and a compound with at least one element of calcium, yttrium, europium, holmium, erbium, thulium, ytterbium and lutetium.

Abstract: Provided is a novel lithium silicate-based material useful as a positive electrode material for lithium ion secondary battery. The lithium silicate-based compound is represented by Li1.5FeSiO4.25 The lithium silicate-based compound is a compound including: lithium (Li); iron (Fe); silicon (Si); and oxygen (O), and expressed by a composition formula, Li1+2?FeSiO4+??c(?0.25???0.25, 0?c?0.5). The lithium silicate-based compound, of which iron (Fe) is trivalent, exerts a remarkable chemical stability as compared to Li2FeSiO4.

Abstract: A negative-electrode active material for secondary battery includes a sulfur-modified polyacrylonitrile. The sulfur-modified polyacrylonitrile includes a polyacrylonitrile, and sulfur being introduced into the polyacrylonitrile.

Abstract: An alkaline secondary battery includes a positive electrode containing a positive electrode material having nickel hydroxide, a cobalt-cerium compound containing cobalt and cerium, and a compound with at least one element of calcium, yttrium, europium, holmium, erbium, thulium, ytterbium and lutetium. Further, the positive electrode material is prepared by powder mixing nicked hydroxide particles, a cobalt-cerium compound, and a compound with at least one element of calcium, yttrium, europium, holmium, erbium, thulium, ytterbium and lutetium.

Abstract: A method for producing a GaN crystal capable of achieving at least one of the prevention of nucleation and the growth of a high-quality non-polar surface is provided. The production method of the present invention is a method for producing a GaN crystal in a melt containing at least an alkali metal and gallium, including an adjustment step of adjusting the carbon content of the melt, and a reaction step of causing the gallium and nitrogen to react with each other. According to the production method of the present invention, nucleation can be prevented, and as shown in FIG. 4, a non-polar surface can be grown.

Abstract: A compound having a high reduction resistance and being capable of sufficiently performing a function as an electronic conductive additive when added to a positive electrode active material as an electronic conductive additive is provided. In a method for producing a cobalt cerium compound including a step of depositing a hydroxide containing cobalt and cerium in an aqueous solution containing cobalt ions and cerium ions by changing the pH of the aqueous solution and thereafter performing a treatment of oxidizing the hydroxide, the ratio of the cerium ions contained in the aqueous solution containing the cobalt ions and the cerium ions is set to be more than 5% by atom and 70% by atom or less with respect to the sum of the cobalt ions and the cerium ions before the hydroxide is deposited.