Abstract: A negative electrode active material containing negative electrode active material particles including, silicon compound particles containing a silicon compound containing oxygen, and at least a part of a surface of the silicon compound particles is covered with a carbon layer, wherein the silicon compound particles contain Li6Si2O7 and Li2SiO3. As a result, the negative electrode active material is provided that can increase the battery capacity with the improvement of the initial efficiency, and a capable of realizing sufficient battery cycle characteristics.

Abstract: A setting management system comprising: a carriage loaded with a device to be set; a setting terminal performing a setting operation on the devices to be set with which the carriage is loaded; and a management device managing the setting operation by the setting terminal. The setting terminal includes a first memory; and a first processor coupled to the first memory. The processor configured to: acquire device identification information for identifying each device to be set from the devices. The management device includes a second memory; and a second processor coupled to the second memory and the processor configured to: provide the setting terminal with setting information unique to each of the devices to be set in association with the acquired device identification information, and create a device ledger in which the acquired device identification information and the provided unique setting information are associated with each other.

Abstract: A negative electrode active material includes: particles of negative electrode active material, the particles of negative electrode active material contain particles of silicon compound containing a silicon compound (SiOx:0.5?x?1.6); the particles of silicon compound contain at least one kind or more of Li2SiO3 and Li4SiO4; the particles of negative electrode active material contain Li2CO3 and LiOH on a surface thereof; and a content of the Li2CO3 is 0.01% by mass or more and 5.00% by mass or less relative to a mass of the particles of negative electrode active material and a content of the LiOH is 0.01% by mass or more and 5.00% by mass or less relative to the mass of the particles of negative electrode active material. Thus a negative electrode active material is capable of improving initial charge/discharge characteristics and the cycle characteristics when used as a negative electrode active material of the secondary battery.

Abstract: A negative electrode active material includes: particles of negative electrode active material, the particles of negative electrode active material contain particles of silicon compound containing a silicon compound (SiOx:0.5?x?1.6); the particles of silicon compound contain at least one kind or more of Li2SiO3 and Li4SiO4; the particles of negative electrode active material contain Li2CO3 and LiOH on a surface thereof; and a content of the Li2CO3 is 0.01% by mass or more and 5.00% by mass or less relative to a mass of the particles of negative electrode active material and a content of the LiOH is 0.01% by mass or more and 5.00% by mass or less relative to the mass of the particles of negative electrode active material. Thus a negative electrode active material is capable of improving initial charge/discharge characteristics and the cycle characteristics when used as a negative electrode active material of the secondary battery.

Abstract: The present disclosure relates to a negative electrode active material including: particles of negative electrode active material, wherein the particles of negative electrode active material contain particles of silicon compound containing a silicon compound (SiOx: 0.55?x?1.6), and the particles of silicon compound includes at least one or more kinds of Li2SiO3 and Li4SiO4; the particles of silicon compound contain nickel; and, a mass of the nickel to a mass of the particles of negative electrode active material is 2 mass ppm or more and 100 mass ppm or less. Thus, when used as the negative electrode active material of a secondary battery, a negative electrode active material capable of improving the initial charge/discharge characteristics and cycle characteristics is provided.

Abstract: A negative electrode active material contains particle of the negative electrode active material, wherein the particle of the negative electrode active material contains particle of a silicon compound which contains a silicon compound (SiOx: 0.5?x?1.6), the particle of the silicon compound contains lithium, and the particle of the negative electrode active material has a total content rate of a polyphenylene compound component and a polycyclic aromatic component measured by TPD-MS of 1 ppm by mass or more and 4,000 ppm by mass or less. As a result, a negative electrode active material is capable of improving cycle characteristics and initial charge/discharge characteristics when it is used as a negative electrode active material of a lithium ion secondary battery.

Abstract: A method for producing a negative electrode active material containing particles of negative electrode active material containing particles of silicon compound. The method includes preparing a container in which silicon has been contained; melting the silicon contained in the container to form a silicon melt; generating a mixed gas in which a silicon gas and a silicon oxide gas are mixed by introducing a raw material which generates a silicon oxide gas into the silicon melt; producing particles of silicon compound containing a silicon compound (SiOx: 0.5x<1.0) by solidifying and depositing the mixed gas on an adsorption plate, and inserting lithium into the particles of silicon compound.

Abstract: The present invention relates to a negative electrode material for nonaqueous electrolyte secondary batteries, which is composed of a silicon composite body that has a structure wherein microcrystals or fine particles of silicon are dispersed in a substance having a composition different from that of the microcrystals or fine particles, said silicon composite body having a crystallite size of the microcrystals or fine particles of 8.0 nm or less as calculated using Scherrer's equation on the basis of the half width of the diffraction peak belonging to Si(220) in an X-ray diffraction. The present invention is able to provide a negative electrode material for nonaqueous electrolyte secondary batteries, which has excellent coulombic efficiency, and a nonaqueous electrolyte secondary battery.

Abstract: The present invention provides a negative electrode material for a non-aqueous electrolyte secondary battery, comprising negative electrode active material particles containing a silicon compound expressed by SiOx at least partially coated with a carbon coating where 0.5?x?1.6. The negative electrode active material particles have a negative zeta potential and exhibiting fragments of CyHz compound in an outermost surface layer of the silicon compound when subjected to TOF-SIMS. This negative electrode material can increase the battery capacity and improve the cycle performance and battery initial efficiency. The invention also provides a negative electrode active material layer, a negative electrode, and a non-aqueous electrolyte secondary battery using this material, and a method of producing this material.

Abstract: A negative electrode active material for nonaqueous electrolyte secondary batteries including: a particle of negative electrode active material, wherein the particle of negative electrode active material contains a particle of silicon compound containing a silicon compound (SiOx:0.5?x?1.6), on at least a part of a surface of the silicon compound a carbon coating film being formed, and the negative electrode active material contains 2% by mass or less of particle of silicon dioxide and the negative electrode active material contains a silicon dioxide-carbon composite secondary particle containing a plurality of the particles of silicon dioxide and carbon. As a result, the negative electrode active material for nonaqueous electrolyte secondary batteries capable of increasing battery capacity and improving the cycle characteristics and battery initial efficiency is provided.

Abstract: A negative electrode active material, wherein the negative electrode active material is a negative electrode active material including negative electrode active material particles; the negative electrode active material particles include silicon compound particles including a silicon compound (SiOx: 0.5?x?1.6); the silicon compound particles include at least any one kind or more kinds of Li2SiO3 and Li4SiO4; the negative electrode active material particles have a loose bulk density BD of 0.5 g/cm3 or more and 0.9 g/cm3 or less, a tapped bulk density TD of 0.7 g/cm3 or more and 1.2 g/cm3 or less, and a compression degree of 25% or less, the compression degree being defined by (TD?BD)/TD. Therefore, the negative electrode active material which is capable of improving the initial charge and discharge characteristics as well as the cycle characteristics upon using it as the negative electrode active material of a secondary battery is provided.

Abstract: The present invention is a negative electrode material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles containing a silicon compound expressed by SiOx where 0.5?x?1.6, the silicon compound being coated with a carbon coating layer composed of a carbon component, wherein the negative electrode active material particles contain a SiO2 component having a tridymite structure and exhibit a diffraction peak around 21.825° with a half width (2?) of 0.15° or less in X-ray diffraction. This negative electrode material for a non-aqueous electrolyte secondary battery can increase the battery capacity and improve the cycle performance and the initial charge and discharge performance.

Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles containing a silicon compound (SiOx where 0.5?x?1.6), the negative electrode active material particles being coated with a carbon coating composed of a substance at least partially containing carbon, the carbon coating having a density ranging from 1.2 g/cm3 to 1.9 g/cm3, the negative electrode active material particles having a characteristic of type II or type III adsorption-desorption isotherm in the IUPAC classification, as obtained by adsorption-desorption isotherm measurement with nitrogen gas. This negative electrode active material can increase the battery capacity and improve the cycle performance and battery initial efficiency.

Abstract: The present invention is directed to a negative electrode material for a non-aqueous electrolyte secondary battery, including a conductive powder composed of silicon-based active material particles coated with a conductive carbon film, in which the conductive carbon film exhibits a d-band having a peak half width of 100 cm?1 or more as determined from a Raman spectrum of the conductive carbon film. The invention provides a negative electrode material for a non-aqueous electrolyte secondary battery that has excellent cycle performance and keeps high charge and discharge capacity due to use of a silicon-based active material, a method of producing the negative electrode material for a non-aqueous electrolyte secondary battery, and a non-aqueous electrolyte secondary battery.

Abstract: The objective of the present invention is to provide a negative electrode for a nonaqueous-electrolyte secondary cell, the negative electrode being predoped by immersion in a solution containing ions of an alkali metal and a catalyst, wherein the weight and volume of the negative electrode tend not to increase due to the predoping, and it is possible to further increase initial charge/discharge efficiency.

Abstract: A negative electrode active material, wherein the negative electrode active material is a negative electrode active material including negative electrode active material particles; the negative electrode active material particles include silicon compound particles including a silicon compound (SiOx: 0.5?x?1.6); the silicon compound particles include at least any one kind or more kinds of Li2SiO3 and Li4SiO4; the negative electrode active material particles have a loose bulk density BD of 0.5 g/cm3 or more and 0.9 g/cm3 or less, a tapped bulk density TD of 0.7 g/cm3 or more and 1.2 g/cm3 or less, and a compression degree of 25% or less, the compression degree being defined by (TD?BD)/TD. Therefore, the negative electrode active material which is capable of improving the initial charge and discharge characteristics as well as the cycle characteristics upon using it as the negative electrode active material of a secondary battery is provided.

Abstract: A negative electrode active material contains particle of the negative electrode active material, wherein the particle of the negative electrode active material contains particle of a silicon compound which contains a silicon compound (SiOx: 0.5?x?1.6), the particle of the silicon compound contains lithium, and the particle of the negative electrode active material has a total content rate of a polyphenylene compound component and a polycyclic aromatic component measured by TPD-MS of 1 ppm by mass or more and 4,000 ppm by mass or less. As a result, a negative electrode active material is capable of improving cycle characteristics and initial charge/discharge characteristics when it is used as a negative electrode active material of a lithium ion secondary battery.

Abstract: A negative electrode active material for nonaqueous electrolyte secondary batteries including: a particle of negative electrode active material, wherein the particle of negative electrode active material contains a particle of silicon compound containing a silicon compound (SiOx:0.5?x?1.6), on at least a part of a surface of the silicon compound a carbon coating film being formed, and the negative electrode active material contains 2% by mass or less of particle of silicon dioxide and the negative electrode active material contains a silicon dioxide-carbon composite secondary particle containing a plurality of the particles of silicon dioxide and carbon. As a result, the negative electrode active material for nonaqueous electrolyte secondary batteries capable of increasing battery capacity and improving the cycle characteristics and battery initial efficiency is provided.

Abstract: Negative electrode active material, wherein the negative electrode active material comprises a negative electrode active material particle; the negative electrode active material particle comprises silicon compound particle comprising a silicon compound (SiOx: 0.5?x?1.6); the silicon compound particle comprises at least any one or more of Li2SiO3 and Li4SiO4; the negative electrode active material comprises 2% by mass or less of silicon dioxide particle and comprises a silicon dioxide-carbon composite secondary particle comprising a plurality of the silicon dioxide particles and carbon; and the composite secondary particle includes a lithium compound in at least part of a portion other than a silicon dioxide or a silicon compound (SiOx: 0.5?x?1.6) in the composite secondary particle.

Abstract: A negative electrode active material contains particles of negative electrode active material, wherein, the particles of negative electrode active material contain particles of silicon compound which contain a silicon compound (SiOx: 0.5?x<1.0), the particles of silicon compound contain lithium, and when the negative electrode active material is used for a negative electrode of a secondary battery having metal lithium as a counter electrode, and 1.2 V constant current discharge is carried out after 0 V constant current and constant voltage charging of the secondary battery, an obtained discharge capacity is 1,550 mAh/g or more and 2,200 mAh/g or less. According to this constitution, a negative electrode active material capable of improving discharge capacity, cycle characteristics and initial charge and discharge characteristics can be provided when it is used for a negative electrode active material of the secondary battery.