Abstract: An inspection device includes: an inspection coil disposed between a first feeder line and a second feeder line; and a cover formed to cover a core. The cover includes: a coil cover portion covering the inspection coil; and a projection portion formed to project to both sides at least in a specific radial direction with respect to the coil cover portion. The dimension in the specific radial direction of the coil cover portion is smaller than the design interval between the first feeder line and the second feeder line, and the dimension in the specific radial direction of the projection portion is larger than the design interval.

Abstract: A light emitting element includes a substrate and a first light emitting part and a second light emitting part arranged thereon to emit different colored lights. The first light emitting part includes a first laminate structure where a n-type semiconductor film and a first semiconductor film are laminated, a first capping film and a p-type semiconductor film laminated on the first laminate structure. The second light emitting part includes a second laminate structure where the n-type semiconductor film, the first semiconductor film, a first intermediate film, and a second semiconductor film are laminated, a second capping film and the p-type semiconductor film laminated on the second laminate structure, the first capping film being the first intermediate film. A bandgap of the first intermediate film is higher than the first semiconductor film and the second semiconductor film. The bandgap of the second semiconductor film is lower than the first semiconductor film.

Abstract: A nonaqueous electrolyte secondary battery includes an exterior package, an electrode assembly, and an electrolyte solution. The exterior package stores the electrode assembly and the electrolyte solution. The electrode assembly is shaped to have a flat shape. The electrode assembly includes a layered body. The layered body includes a first separator, a positive electrode plate, a second separator, and a negative electrode plate. The first separator, the positive electrode plate, the second separator, and the negative electrode plate are layered in this order. The electrode assembly is formed by spirally winding the layered body. Each of the first separator and the second separator has a proportional limit of less than or equal to 10.2 MPa. The proportional limit is measured in a compression test in a thickness direction of each of the first separator and the second separator.

Abstract: A valuable metal recovery method includes: recovering a battery slag from lithium ion battery waste; adding an acid to the battery slag; adding a sulfur compound the leachate; filtering the first processed product to obtain a first processed filtrate; adding a sulfur compound to the first processed filtrate; filtering the second processed product to obtain a second processed filtrate; adding calcium hydroxide to the second processed filtrate; filtering the third processed product to obtain a third processed filtrate; adding sodium carbonate to the third processed filtrate; filtering the processed product; heating the fourth processed filtrate; blowing carbon dioxide or adding a carbonate; and filtering the processed product, wherein a pH of the second processed product is higher than a pH of the first processed product, and a pH of the third processed product is higher than the pH of the second processed product.

Abstract: A Li recovery method includes: an acid leaching step of adding an acid to a battery slag to produce a leachate; a first addition step of adding a Ca content to the leachate to produce a first processed product; a post-first-addition filtration step of filtering the first processed product to be separated into a first processing filtrate and a first processing residue; a second addition step of adding sodium carbonate to the first processing filtrate to produce a second processed product; a post-second-addition filtration step of filtering the second processed product to be separated into a second processing filtrate and a second processing residue; heating the second processing filtrate; blowing carbon dioxide into the heated second processing filtrate to produce a third processed product; and a post-carbonation filtration step of filtering the third processed product to be separated into a third processing filtrate and a third processing residue.

Abstract: A watch includes a crystal oscillator, a controller including an oscillation circuit configured to cause the crystal oscillator to oscillate, wiring that couples the crystal oscillator with the controller, and the crystal oscillator, a storage container that stores the crystal oscillator, the wiring, and the controller, and an outer case that stores the storage container, in which the crystal oscillator and the controller are placed side by side inside the storage container in plan view.

Abstract: A charger includes a power regulator that regulates power supplied from a power supply and outputs the power to a power storage device, a current detector that detects a battery current supplied to the power storage device, a voltage detector that detects a battery voltage, a controller that performs feedback control over the power regulator based on the battery current and the battery voltage, a feedback signal generator that generates, based on the battery current and the battery voltage, a power feedback signal usable for constant current control and constant voltage control, and a feedback calculator that generates, based on a difference between a command value and the power feedback signal, a control signal to control the power regulator.

Abstract: A power storage device includes a lid of a case housing an electrode body and a stopper welded to a liquid inlet circumferential portion of the lid by energy-beam welding to seal the liquid inlet. An annular solidified molten portion made of metal, which has been once molten and then solidified, is positioned on a lid thickwise inside than a lid outer plane of the lid over the entire circumference, and has a surface which continues to an outer annular step surface and a peripheral outward surface and fomes a convex shape toward a lid thickwise outside.

Abstract: A power storage device includes a lid of a case housing an electrode body and a stopper welded to a liquid inlet circumferential portion of the lid by energy-beam welding to seal the liquid inlet. An annular solidified molten portion made of metal, which has been once molten and then solidified, is positioned on a lid thickwise inside than a lid outer plane of the lid over the entire circumference, and has a surface continuing to an outer annular step surface and a peripheral outward surface and coming closer to the lid thickwise inside from a comparative outer surface on an outer side to a comparative inside surface on an inner side when seen from a lid thickwise direction of these two faces.

Abstract: What is provided is a method for separating cobalt and nickel including: a crushing and sorting step of crushing and classifying the lithium ion secondary battery to obtain an electrode material containing at least cobalt, nickel, copper, and lithium; a leaching step of immersing the electrode material in a processing liquid containing sulfuric acid and hydrogen peroxide to obtain a leachate; a copper separation step of adding a hydrogen sulfide compound to the leachate with stirring and subsequently carrying out solid-liquid separation to obtain an eluate containing cobalt and nickel and a residue containing copper sulfide; and a cobalt/nickel separation step of adding an alkali metal hydroxide to the eluate to adjust a pH and subsequently, adding a hydrogen sulfide compound with stirring and carrying out solid-liquid separation to obtain a precipitate containing cobalt sulfide and nickel sulfide and a residual liquid containing lithium.

Abstract: An inspection device includes: an inspection coil disposed between a first feeder line and a second feeder line; and a cover formed to cover a core. The cover includes: a coil cover portion covering the inspection coil; and a projection portion formed to project to both sides at least in a specific radial direction with respect to the coil cover portion. The dimension in the specific radial direction of the coil cover portion is smaller than the design interval between the first feeder line and the second feeder line, and the dimension in the specific radial direction of the projection portion is larger than the design interval.

Abstract: A method for manufacturing a worm wheel including an inner wheel element including a side plate portion and a tubular eave portion, and an outer wheel element including a wheel tooth portion on an outer circumferential surface thereof, and coupled and fixed to the inner wheel element in a manner of covering a radially outer portion of the side plate portion and the eave portion, the method includes: molding the outer wheel element by disposing a mold around a radially outer portion of the inner wheel element, and feeding the molten synthetic resin from an annular or arc-shaped injection gate toward a pocket portion that is continuous over an entire circumference of a cavity present between an inner surface of the mold and a surface of the inner wheel element and that is present on a radially inner side of the eave portion.

Abstract: In a method for producing a nonaqueous electrolyte secondary battery according to the present invention, a wound electrode body and a flat wound electrode body are formed by pressing. The flat wound electrode body and a cover member are connected to each other; a battery case and the cover member are integrated with each other; and a nonaqueous electrolyte solution is injected using a liquid injection port of the cover member, and the liquid injection port is sealed after the liquid injection, thereby forming a nonaqueous electrolyte secondary battery before inspection. Subsequently, the nonaqueous electrolyte secondary battery before inspection is pressed into a predetermined pressed state. A predetermined charge/discharge inspection is performed on the nonaqueous electrolyte secondary battery in the predetermined pressed state. If predetermined inspection specifications are satisfied in the predetermined charge/.

Abstract: A method for producing a secondary battery according to the present invention comprises a step wherein a negative electrode collector, which has a projection having a height of from 0.36 mm to 0.45 mm on at least one of a first member and a second member, said members constituting the negative electrode collector, is resistance-welded with a core multilayer part in such a manner that the core multilayer part is sandwiched between the first member and the second member, while having the projection in contact with the core multilayer part.

Abstract: The present invention relates to a surfactant composition capable of making a liquid oil highly remain on the solid surface, which is a surfactant composition containing an anionic surfactant (A), a cationic surfactant (B), a liquid oil (C), and water, wherein the water constitutes a continuous phase; the following molar ratio RA is 0.25 or more and 0.60 or less; and the following molar ratio Rb is 0.6 or more: RA: a molar ratio {(A)/[(A)+(B)]} of the amount of the anionic surfactant (A) to the total amount of the anionic surfactant (A) and the cationic surfactant (B) Rb: a molar ratio {[(a1)+(b1)]/[(A)+(B)]} of the total amount of a branched-type anionic surfactant (a1) and a branched-type cationic surfactant (b1) to the total amount of the anionic surfactant (A) and the cationic surfactant (B).

Abstract: A nonaqueous electrolyte secondary battery includes an exterior package, an electrode assembly, and an electrolyte solution. The exterior package stores the electrode assembly and the electrolyte solution. The electrode assembly is shaped to have a flat shape. The electrode assembly includes a layered body. The layered body includes a first separator, a positive electrode plate, a second separator, and a negative electrode plate. The first separator, the positive electrode plate, the second separator, and the negative electrode plate are layered in this order. The electrode assembly is formed by spirally winding the layered body. Each of the first separator and the second separator has a proportional limit of less than or equal to 10.2 MPa. The proportional limit is measured in a compression test in a thickness direction of each of the first separator and the second separator.

Abstract: The present invention relates to a surfactant composition capable of making a dimethylsiloxane highly remain the solid surface, which is a surfactant composition containing an anionic surfactant (A), a cationic surfactant (B), and a dimethylpolysiloxane (C), wherein the following molar ratio RA is 0.10 to 0.90; and the following molar ratio Rb is 0.4 or more: RA: a molar ratio {(A)/[(A)+(B)]} of the amount of the anionic surfactant (A) to the total amount of the anionic surfactant (A) and the cationic surfactant (B) Rb: a molar ratio {[(a1)+(b1)]/[(A)+(B)]} of the total amount of a branched-type anionic surfactant (a1) and a branched-type cationic surfactant (b1) to the total amount of the anionic surfactant (A) and the cationic surfactant (B).

Abstract: A light emitting element includes a substrate and a first light emitting part and a second light emitting part arranged thereon to emit different colored lights. The first light emitting part includes a first laminate structure where a n-type semiconductor film and a first semiconductor film are laminated, a first capping film and a p-type semiconductor film laminated on the first laminate structure. The second light emitting part includes a second laminate structure where the n-type semiconductor film, the first semiconductor film, a first intermediate film, and a second semiconductor film are laminated, a second capping film and the p-type semiconductor film laminated on the second laminate structure, the first capping film being the first intermediate film. A bandgap of the first intermediate film is higher than the first semiconductor film and the second semiconductor film. The bandgap of the second semiconductor film is lower than the first semiconductor film.

Abstract: A watch includes a crystal oscillator, a controller including an oscillation circuit configured to cause the crystal oscillator to oscillate, wiring that couples the crystal oscillator with the controller, and the crystal oscillator, a storage container that stores the crystal oscillator, the wiring, and the controller, and an outer case that stores the storage container, in which the crystal oscillator and the controller are placed side by side inside the storage container in plan view.

Abstract: There is disclosed a method of driving an electrophoresis display device including a display unit having a plurality of pixel electrodes, a common electrode opposite to the plurality of pixel electrodes, and a first and second electrophoresis particles that are disposed between the plurality of pixel electrodes and the common electrode, the method including applying a first or second potential to each of the pixel electrodes, and applying the first or second potential, which is periodically switched, to the common electrode, when an image displayed on the display unit is rewritten, wherein, when the first and second potentials are periodically applied to the common electrode, the application of the first potential for a first application time and the application of the second potential for a second application time different from the first application time are repeatedly performed.