Abstract: Disclosed is an all-solid-state lithium ion secondary battery excellent in cycle characteristics. The battery may be an all-solid-state lithium ion secondary battery, wherein an anode comprises anode active material particles, an electroconductive material and a solid electrolyte; wherein the anode active material particles comprise at least one active material selected from the group consisting of elemental silicon and SiO; and wherein a BET specific surface area of the anode active material particles is 1.9 m2/g or more and 14.2 m2/g or less.

Abstract: Disclosed is an all-solid-state lithium ion secondary battery excellent in cycle characteristics. The battery may be an all-solid-state lithium ion secondary battery, wherein an anode comprises anode active material particles, an electroconductive material and a solid electrolyte; wherein the anode active material particles comprise at least one active material selected from the group consisting of elemental silicon and SiO; and wherein, for the anode active material particles, a value A obtained by the following formula (1) is 6.1 or more and 54.8 or less: A=SBET×dmed×D??Formula (1) where SBET is a BET specific surface area (m2/g) of the anode active material particles; dmed is a median diameter D50 (?m) of the anode active material particles; and D is a density (g/cm3) of the anode active material particles.

Abstract: Disclosed is an all-solid-state lithium ion secondary battery excellent in cycle characteristics. The battery may be an all-solid-state lithium ion secondary battery, wherein an anode comprises anode active material particles, an electroconductive material and a solid electrolyte; wherein the anode active material particles comprise at least one active material selected from the group consisting of elemental silicon and SiO; and wherein a BET specific surface area of the anode active material particles is 1.9 m2/g or more and 14.2 m2/g or less.

Abstract: Disclosed is an all-solid-state lithium ion secondary battery excellent in cycle characteristics. The battery may be an all-solid-state lithium ion secondary battery, wherein an anode comprises anode active material particles, an electroconductive material and a solid electrolyte; wherein the anode active material particles comprise at least one active material selected from the group consisting of elemental silicon and SiO; and wherein, for the anode active material particles, a value A obtained by the following formula (1) is 6.1 or more and 54.8 or less: A=SBET×dmed×D??Formula (1) where SBET is a BET specific surface area (m2/g) of the anode active material particles; dmed is a median diameter D50 (?m) of the anode active material particles; and D is a density (g/cm3) of the anode active material particles.

Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery, wherein the negative electrode active material is represented by an elemental composition formula of Met1-Si—O—C—H (wherein Met1 represents one alkali metal element or a mixture of alkali metal elements), including: a silicate salt made of a silicon-based inorganic compound and the alkali metal, and fine particles composed of silicon, silicon alloy, or silicon oxide being dispersed in the silicate salt; and a negative electrode active material for a non-aqueous electrolyte secondary battery, wherein the negative electrode active material is represented by an elemental composition formula of Met2-Si—O—C—H (wherein Met2 represents one alkaline earth metal element or a mixture of alkaline earth metal elements), including: a silicate salt made of a silicon-based inorganic compound and the alkaline earth metal.

Abstract: The present invention is directed to a silicon-containing particle for use as a negative-electrode active material of a non-aqueous electrolyte secondary battery, wherein a crystal grain size is 300 nm or less, the crystal grain size being obtained by a Scherrer method from a full width at half maximum of a diffraction line attributable to Si (111) and near 2?=28.4° in an x-ray diffraction pattern analysis, and a true density is more than 2.320 g/cm3 and less than 3.500 g/cm3. The invention provides silicon-containing particles for use as a negative-electrode active material of a non-aqueous electrolyte secondary battery that enable manufacture of a non-aqueous electrolyte secondary battery having an excellent cycle characteristics and a higher capacity compared with graphite types.

Abstract: The present invention is directed to a silicon-containing particle for use as a negative-electrode active material of a non-aqueous electrolyte secondary battery, wherein a crystal grain size is 300 nm or less, the crystal grain size being obtained by a Scherrer method from a full width at half maximum of a diffraction line attributable to Si (111) and near 2?=28.4° in an x-ray diffraction pattern analysis, and a true density is more than 2.320 g/cm3 and less than 3.500 g/cm3. The invention provides silicon-containing particles for use as a negative-electrode active material of a non-aqueous electrolyte secondary battery that enable manufacture of a non-aqueous electrolyte secondary battery having an excellent cycle characteristics and a higher capacity compared with graphite types.

Abstract: A method for manufacturing a negative electrode active material for a secondary battery that uses a non-aqueous electrolyte, including the steps of: depositing silicon according to an electron beam vapor-deposition method with metallic silicon as a raw material on a substrate of which temperature is controlled from 800 to 1100° C. at a vapor deposition rate exceeding 1 kg/hr in the range of film thickness of 2 to 30 mm; and pulverizing and classifying the deposited silicon to obtain the negative electrode active material. As a result, there is provided a method for manufacturing a negative electrode active material of silicon particles as an active material useful for a negative electrode of a non-aqueous electrolyte secondary battery that is, while maintaining high initial efficiency and battery capacity of silicon, excellent in the cycle characteristics and has a reduced volume change during charge/discharge.

Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery, wherein the negative electrode active material is represented by an elemental composition formula of Met1-Si—O—C—H (wherein Met1 represents one alkali metal element or a mixture of alkali metal elements), including: a silicate salt made of a silicon-based inorganic compound and the alkali metal, and fine particles composed of silicon, silicon alloy, or silicon oxide being dispersed in the silicate salt; and a negative electrode active material for a non-aqueous electrolyte secondary battery, wherein the negative electrode active material is represented by an elemental composition formula of Met2-Si—O—C—H (wherein Met2 represents one alkaline earth metal element or a mixture of alkaline earth metal elements), including: a silicate salt made of a silicon-based inorganic compound and the alkaline earth metal.

Abstract: The present invention is a negative electrode material for non-aqueous electrolyte secondary batteries, comprising at least: particles wherein silicon nanoparticles are dispersed in silicon oxide (silicon oxide particles); and a metal oxide coating formed on a surface of the silicon oxide particles. As a result, there is provided a negative electrode material for non-aqueous electrolyte secondary batteries that enables the production of a negative electrode suitable for lithium-ion secondary batteries and the like that provides improved safety and cycle performance over conventional negative electrode materials.

Abstract: A silicon-containing particle is provided for use as a negative-electrode active material of a non-aqueous electrolyte secondary battery, wherein a crystal grain size is 300 nm or less, the crystal grain size being obtained by a Scherrer method from a full width at half maximum of a diffraction line attributable to Si and near 2?=28.4° in an x-ray diffraction pattern analysis, and a true density is more than 2.320 g/cm3 and less than 3.500 g/cm3. Silicon-containing particles are provided for use as a negative-electrode active material of a non-aqueous electrolyte secondary battery that enable manufacture of a non-aqueous electrolyte secondary battery having an excellent cycle characteristics and a higher capacity compared with graphite types.

Abstract: The present invention intends to provide silicon-containing particles that, when used as a negative electrode active material for a nonaqueous electrolyte secondary battery, can form a nonaqueous electrolyte secondary battery that is less in volume change during charge/discharge and has high initial efficiency and excellent cycle characteristics. The present invention provides silicon-containing particles that are used as a negative electrode active material for a nonaqueous electrolyte secondary battery and have a diffraction line with a peak at 2?=28.6° in X-ray diffractometry, a negative electrode material for a nonaqueous electrolyte secondary battery therewith, a nonaqueous electrolyte secondary battery, and a method of manufacturing the silicon-containing particles.

Abstract: The present invention manufactures silicon-containing particles for use in a negative electrode active material of a non-aqueous electrolyte secondary battery by obtaining the silicon-containing particles by a deposition method and performing a heat treatment on the silicon-containing particles under a reducing atmosphere at, for example, 400° C. to 1100° C. The silicon-containing particles manufactured by this method have an oxygen content ranging from 0.1 to 1.5 mass %. These silicon-containing particles enable manufacture of a non-aqueous electrolyte secondary battery that has a high initial efficiency and an excellent cycle performance and exhibits a small volume variation upon charging and discharging.

Abstract: The present invention provides a negative electrode material for a non-aqueous electrolyte secondary battery that includes particles of a silicon-based active material, the particles of a silicon-based active material being coated with a film of an organosilicon compound that contains a perfluoropolyether group, and a non-aqueous electrolyte secondary battery therewith. As a result, there is provided a negative electrode material for a non-aqueous electrolyte secondary battery that is high in capacity, excellent in initial charge/discharge efficiency and cycle characteristics and high in safety and reliability, and a non-aqueous electrolyte secondary battery that uses the negative electrode material.

Abstract: The present invention intends to provide silicon-containing particles that, when used as a negative electrode active material for a nonaqueous electrolyte secondary battery, can form a nonaqueous electrolyte secondary battery that is less in volume change during charge/discharge and has high initial efficiency and excellent cycle characteristics. The present invention provides silicon-containing particles that are used as a negative electrode active material for a nonaqueous electrolyte secondary battery and have a diffraction line with a peak at 2?=28.6° in X-ray diffractometry, a negative electrode material for a nonaqueous electrolyte secondary battery therewith, a nonaqueous electrolyte secondary battery, and a method of manufacturing the silicon-containing particles.

Abstract: The present invention provides a method for manufacturing a negative electrode material for a nonaqueous electrolyte secondary battery, which includes the steps of: preparing silicon nanoparticles; manufacturing the silicon-carbon composite material that contains the silicon nanoparticles and a carbonaceous material; and heat-compressing the silicon-carbon composite material. As a result, there is provided a negative electrode material for a nonaqueous electrolyte secondary battery, which has a high capacity and excellent initial charge/discharge efficiency and cycle characteristics and a method for manufacturing the same, and a nonaqueous electrolyte secondary battery that uses the negative electrode material for a nonaqueous electrolyte secondary battery.

Abstract: The present invention provides a negative electrode material for a non-aqueous electrolyte secondary battery that includes particles of a silicon-based active material, the particles of a silicon-based active material being coated with a film of an organosilicon compound that contains a perfluoropolyether group, and a non-aqueous electrolyte secondary battery therewith. As a result, there is provided a negative electrode material for a non-aqueous electrolyte secondary battery that is high in capacity, excellent in initial charge/discharge efficiency and cycle characteristics and high in safety and reliability, and a non-aqueous electrolyte secondary battery that uses the negative electrode material.

Abstract: The present invention is a non-aqueous electrolyte secondary battery including at least a positive electrode, a negative electrode and a non-aqueous electrolyte, the positive and negative electrodes being capable of occluding and emitting lithium ions, wherein the negative electrode is composed of particles each having a structure that silicon nanoparticles are dispersed to silicon oxide, each of the particles is coated with a carbon coating, and the non-aqueous electrolyte includes lithium oxalatoborate in the range of 5 to 10 mass %, as the electrolyte. As a result, there is provided a non-aqueous electrolyte secondary battery having high capacity, superior first charge and discharge efficiency, superior cycle performance, and high safety, while a manufacturing method and structure thereof are not complex.

Abstract: The present invention is a negative electrode material for non-aqueous electrolyte secondary batteries, comprising at least: particles wherein silicon nanoparticles are dispersed in silicon oxide (silicon oxide particles); and a metal oxide coating formed on a surface of the silicon oxide particles. As a result, there is provided a negative electrode material for non-aqueous electrolyte secondary batteries that enables the production of a negative electrode suitable for lithium-ion secondary batteries and the like that provides improved safety and cycle performance over conventional negative electrode materials.

Abstract: A slide device, comprising first class members having spaces opening to sides formed in the longitudinal directions thereof and second class rail members positioned in the spaces, wherein either of the first and second class rail members movable relative to each other are formed in movable rail members and the other are formed in fixed rail members, the movable rail members are installed at both side parts of slide plates, the slide plates are positioned on brackets parallel with each other, and the movable rail member installed on the slide plate is supported by the fixed rail member installed on the slide plate.