Abstract: Provided is a tool magazine capable of automatically exchanging a tool holder between the tool magazine and a spindle. A tool magazine includes: a magazine body; an operation lever disposed to the magazine body, the operation lever reciprocable in the axial direction of the spindle with the operation sleeve in a supportable manner, the operation lever including, an operation sleeve receiving hole configured to receive the operation lever, and a hook portion disposed in the operation sleeve receiving hole to be hooked in the receiving portion, an operation lever guide configured to guide the operation lever in the axial direction of the spindle; and an operation elastic body configured to urge the operation lever toward a basal end of the spindle against an elastic force of the holder elastic body.

Abstract: A body member (110) of a coolant medium spray device (100) is attachable to a main shaft (10) of a machine tool. A rotating part of a pump (300) is connected to the body member. The body member and the rotating part are rotatably supported within an interior space of a support part, which may be constituted by a cover (210), a case (220) and a ring member (225). When the body member is attached to the main shaft, the support part is also fixed to the machine tool so that the support part is non-rotatable relative to the machine tool. In this state, cooling medium that is being supplied via the main shaft is pressurized by the pump and then sprayed out of a spray port (242) of a nozzle (240) that is mounted in a nozzle mounting hole (231) of a cap (230) affixed to the support part.

Abstract: An object of the present invention is to provide a lithium ion secondary battery having a high energy density and improved cycle characteristics. The present invention is related to an electrode for a power storage device comprising a negative electrode mixture layer comprising: (a) a negative electrode active material (42-2) comprising 1% or more of a material comprising Si as a constituent element; (b) a first polymer (42-1) coating the negative electrode active material and comprising vinylidene fluoride as a monomer unit; and (c) a negative electrode binder (42-3) comprising a second polymer that has a molecular weight of 80,000 or more and comprises at least one monomer unit selected from the group consisting of acrylic acid, acrylate salt, methacrylic acid, and methacrylate salt.

Abstract: A purpose of one embodiment of the present invention is to provide a lithium ion secondary battery which has improved cycle characteristics and comprises a Si material in the negative electrode. The lithium ion secondary battery according to the present invention comprises a negative electrode comprising a negative electrode active material, a positive electrode comprising a positive electrode active material and an electrolyte solution, wherein the negative electrode active material comprises a Si material, and a ratio (Ia/Ib) of a peak intensity (Ia) at 290 eV to a peak intensity (Ib) at 285 eV is 0.7 or more in a C1s spectrum obtained by surface analysis of the negative electrode by X-ray photoelectron spectroscopy.

Abstract: A tool holder includes a tubular body having a shank on a first axial end portion, a tool gripping portion on a second axial end portion, and an elastic segment interposed between the shank and the tool gripping portion in the axial direction of the body. The elastic segment is more elastically deformable along the axial direction and around a circumferential direction of the tubular body than the shank and the tool gripping portion owing to a plurality of voids that extend through the elastic segment from an outer peripheral side of the tubular body to an inner peripheral side of the tubular body. Each of the voids includes segments that extend around the circumferential direction and along the axial direction of the tubular body.

Abstract: A purpose of one embodiment of the present invention is to provide a lithium ion secondary battery which has improved cycle characteristics and comprises a Si material in the negative electrode. The lithium ion secondary battery according to the present invention comprises a negative electrode comprising a negative electrode active material, a positive electrode comprising a positive electrode active material and an electrolyte solution, wherein the negative electrode active material comprises a Si material, and a ratio (Ia/Ib) of a peak intensity (Ia) at 290 eV to a peak intensity (Ib) at 285 eV is 0.7 or more in a C1s spectrum obtained by surface analysis of the negative electrode by X-ray photoelectron spectroscopy.

Abstract: The present invention relates to an electrolyte solution comprising a supporting salt, a nonaqueous solvent containing a compound having a viscosity of 1.0 mPa-s or less in an amount of more than 50% by volume in the nonaqueous solvent, and a halogenated cyclic acid anhydride. According to the present invention, an electrolyte solution capable of suppressing gas generation is provided.

Abstract: An object of the present invention is to provide a lithium ion secondary battery having a high energy density and improved cycle characteristics. The present invention is related to an electrode for a power storage device comprising a negative electrode mixture layer comprising: (a) a negative electrode active material (42-2) comprising 1% or more of a material comprising Si as a constituent element; (b) a first polymer (42-1) coating the negative electrode active material and comprising vinylidene fluoride as a monomer unit; and (c) a negative electrode binder (42-3) comprising a second polymer that has a molecular weight of 80,000 or more and comprises at least one monomer unit selected from the group consisting of acrylic acid, acrylate salt, methacrylic acid, and methacrylate salt.

Abstract: The present invention relates to a lithium secondary battery having a positive electrode comprising a positive electrode active material capable of absorbing and releasing lithium ions, a negative electrode comprising a negative electrode active material capable of absorbing and releasing lithium ions, and an electrolyte solution, wherein a positive electrode surface detection component comprises at least one negative secondary ion peak selected from CH3S2O6? and CHS2O4?, and further comprises a negative secondary ion peak of SO3—, wherein the positive electrode surface detection component is detected when a primary ion is irradiated on the surface of the positive electrode active material by a Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS) method. According to the present invention, it is possible to provide a lithium secondary battery having excellent cycle characteristics.

Abstract: Methods and apparatus provide for, at each of plural calculation timings, associating pieces of position information indicating the positions of objects in a virtual space at the calculation timing with leaves and creates a complete binary tree in which position information reflecting pieces of the position information of child nodes is associated with an internal node, and a node shuffling section that shuffles 2·2n (n?1) child nodes regarding each group of 2n nodes on the basis of the position information associated with each of the 2·2n child nodes belonging to the 2n nodes in each layer sequentially from the immediately-upper layer of the lowermost layer in the complete binary tree; and carrying out collision determination between objects by using the complete binary tree resulting from the shuffling by the node shuffling section.

Abstract: A tool holder includes a tubular body having a shank on a first axial end portion, a tool gripping portion on a second axial end portion, and an elastic segment interposed between the shank and the tool gripping portion in the axial direction of the body. The elastic segment is more elastically deformable along the axial direction and around a circumferential direction of the tubular body than the shank and the tool gripping portion owing to a plurality of voids that extend through the elastic segment from an outer peripheral side of the tubular body to an inner peripheral side of the tubular body. Each of the voids includes segments that extend around the circumferential direction and along the axial direction of the tubular body.

Abstract: When the particle size of a silicon material used for a negative electrode active material are small, a large surface area thereof easily causes a side reaction between the active material and an electrolyte solvent to occur, and the cycle characteristics of a lithium ion secondary battery decrease. In order to improve the cycle characteristics, a lithium ion secondary battery according to the present invention is characterized in comprising a negative electrode comprising a material comprising silicon as a constituent element and a polyacrylic acid, and an electrolyte solution comprising a fluoroethylene carbonate, wherein the 50% particle size of the material comprising silicon as a constituent element is 2 ?m or less.

Abstract: Provided are a main steam piping connecting a steam generator and a steam turbine, a bypass piping branched from the main steam piping and bypassing the steam turbine, a bypass valve provided in the bypass piping, a warming piping branched from the bypass valve, a warming valve provided in the warming piping, and a control system. The control system controls the warming valve in such a manner that bypass valve temperature t is brought to within a temperature range satisfying the three conditions: (1) being equal to or higher than the saturated temperature of steam flowing into the bypass valve; (2) having a temperature difference from the flowing-in steam of equal to or less than an allowable value; and (3) being equal to or lower than a temperature at which the formation rate of steam oxidation scale rises.

Abstract: The present invention relates to an electrolytic solution comprising a cyclic disulfonic acid ester represented by the specific formula and a cyclic dicarboxylic acid ester represented by the specific formula, and the secondary battery using the same. According to the present invention, the electrolytic solution which can improve a cycle characteristics in a secondary battery and a secondary battery using the same can be provided.

Abstract: The present invention relates to an electrolytic solution comprising a cyclic dicarboxylic acid ester represented by the specific formula, and the secondary battery comprising the same. According to the present invention, the electrolytic solution comprising an additive which can improve a characteristics in a secondary battery and a secondary battery comprising the same can be provided.

Abstract: A lithium ion secondary battery having high energy density and excellent cycle characteristics is provided. The present invention relates to a lithium ion secondary battery comprising a negative electrode comprising a negative electrode active material comprising more than 25% by weight of a silicon alloy and a non-aqueous electrolyte solution comprising more than 10% by weight of a compound represented by LiN(SO2CnF2n+1)2 (wherein n is an integer of 0 or more) and 10% by weight or more of fluoroethylene carbonate (FEC).

Abstract: It is an object of the present invention to provide an electrolytic solution capable of suppressing gas generation. The present exemplary embodiment is an electrolytic solution comprising a supporting salt, a nonaqueous solvent that dissolves the supporting salt, a cyclic sulfonic acid ester compound represented by predetermined formula (1), and an acid anhydride. According to the exemplary embodiment, an electrolytic solution capable of suppressing gas generation can be provided.

Abstract: The present invention relates to a negative electrode for a lithium ion secondary battery, the negative electrode containing a negative electrode active material containing a first carbon and a second carbon, in which the first carbon is spherical graphite, the second carbon is massive graphite, and the sulfur concentration in the first carbon (Sx) and the sulfur concentration in the second carbon (Sy) are each independently 0 ppm or more and 300 ppm or less.

Abstract: When the particle size of a silicon material used for a negative electrode active material are small, a large surface area thereof easily causes a side reaction between the active material and an electrolyte solvent to occur, and the cycle characteristics of a lithium ion secondary battery decrease. In order to improve the cycle characteristics, a lithium ion secondary battery according to the present invention is characterized in comprising a negative electrode comprising a material comprising silicon as a constituent element and a polyacrylic acid, and an electrolyte solution comprising a fluoroethylene carbonate, wherein the 50% particle size of the material comprising silicon as a constituent element is 2 ?m or less.

Abstract: A simulation apparatus which simulates a position of each of plural objects, which move in a virtual space together with time, at each of plural time points of calculation. The apparatus includes: an object pair information acquisition unit acquiring plural pieces of information of object pairs each including, as components thereof, two objects which contact with each other at each of the plural time points of calculation; an allocation unit allocating, at each of the plural time points of calculation, each of the plural object pairs to one of plural groups such that two or more object pairs which include a common object do not belong to the same group; and a calculation unit calculating, at each of the plural time points of calculation, an influence of contact of two objects included in each of the plural object pairs upon positions of the two objects.