Abstract: The method for manufacturing a lithium ion secondary battery includes a binder coating step (18), a mixture supplying step (20), a magnetic field applying step (22), and a convection generating step (24). The binder coating step (18) is a step of coating a slurry-form binder (18a) on a metal foil (12a) (collector). The mixture supplying step (20) is a step of supplying a negative electrode mixture containing graphite so as to be superposed on the slurry-form binder (18a) coated on the metal foil (12a) in the binder coating step (18). The magnetic field applying step (22) is a step of applying a magnetic field having magnetic lines of force pointing in the direction orthogonal to the metal foil (12a), to the negative electrode mixture (20a) coated on the metal foil (12a) in the mixture supplying step (20).

Abstract: A coating device is arranged to a strip-shaped base sheet with coating material by holding the coating material on the surface of a coating rod and bringing the base sheet into contact with the coating material held on the coating rod, while conveying the base sheet in the longitudinal direction. The coating rod has a water-repellent section, in which the entire circumferential surface of a part of the rod in the axial direction is coated with a water-repellent material that repels the coating material, and a non-water-repellent section that is not coated with the water-repellent material and arranged adjacent to the water-repellent section. Consequently, even if the base sheet is brought into contact with the coating rod, the base sheet can be adequately provided with an uncoated portion in a part in the width direction since the coating material is repelled in the water-repellent section.

Abstract: The present invention provides a method for producing a battery electrode having a configuration in which a compound material layer containing an active material 22 and a binder 54 is retained on a current collector 10. This method includes a step of forming protrusions 64 composed of a polymer on a surface of the current collector 10, a step of forming a binder solution layer 56 by coating a binder solution 50 containing the binder 54 over the polymer protrusions 64 onto the current collector 10, a step of depositing the binder solution layer 56 and a compound material paste layer 46 on the current collector 10 by applying a compound material paste 40 containing the active material 22 over the binder solution layer 56, and a step of obtaining an electrode in which the compound material layer is formed on the current collector 10 by drying both the deposited binder solution layer 56 and compound material paste layer 46.

Abstract: The present invention provides a method for manufacturing a battery electrode. This method comprises the steps of applying a binder solution 50 that contains a binder 54 and is adjusted so that the contact angle of the binder solution 50 with the surface of a current collector 10 is 73° or less, to form a binder solution layer 56; applying a mixed material paste 40 containing an active material 22 on top of the binder solution layer 56, to deposit both the binder solution layer 56 and a mixed material paste layer 46 on the current collector 10; and obtaining an electrode 30 in which a mixed material layer 20 is formed on the current collector 10, by drying the deposited binder solution layer 56 and mixed material paste layer 46 together.

Abstract: According to the present invention, formation of a compound material layer is carried out by a method that includes a step of forming a binder solution layer 56 by applying a binder solution 50 containing a binder 54 to a current collector 10, a step of depositing the binder solution layer 56 and a compound material paste layer 46 on the current collector 10 by applying a compound material paste 40 over the binder solution layer 56, and a step of obtaining an electrode in which the compound material layer is formed on the current collector 10 by drying both the binder solution layer 56 and the compound material paste layer 46. Here, the binder solution 56 has a binder solution non-coated region 58 where a surface 12 of the current collector 10 is exposed, and the drying is carried out in a state in which a portion of the compound material paste layer 46 is deposited on the current collector 10 in the binder solution non-coated region 58.

Abstract: A manufacturing method of an application roller that applies a coating solution onto a surface of a substrate, wherein the application roller includes a roller body that includes a large diameter portion and small diameter portions coaxially extended from both ends of the large diameter portion, the manufacturing method includes: overlaying a resin layer on at least an outer periphery of each of the small diameter portions; forming a masking portion on the outer periphery of each of the small diameter portions by processing an outer periphery of the resin layer; and forming an application groove portion on an outer periphery of the large diameter portion.

Abstract: A drying device (10) includes: a drying furnace (12); a plurality of guide rollers (14) that are arranged in the drying furnace (12) and that transport a sheet-like current collector (210); and a vibration imparting device (16) that is provided for at least part (14a) of the plurality of guide rollers (14) arranged in the drying furnace (12) and that imparts vibrations to the at least part (14a) of the plurality of guide rollers (14).

Abstract: An opto-isolator including a Faraday rotator comprised of a crystal cylinder formed into a cylinder using a crystal that rotates polarized light; an enclosing tube surrounding the crystal cylinder; two cooling tubes each sized and positioned to allow both ends of the outer peripheral surface of the crystal cylinder to be inscribed within the cooling tubes and both end sections of an inner peripheral surface of the enclosing tube to be circumscribed around the cooling tubes; passages formed within the cooling tubes; a cooling medium circulating through a space formed among the crystal cylinder, the enclosing tube, and the two cooling tubes, and the passages; and a magnet disposed in an outer periphery of the enclosing tube. The opto-isolator further includes two polarizers respectively disposed on the optical path of light entering the Faraday rotator and an optical path of the light exiting the Faraday rotator.

Abstract: According to the present invention, formation of a compound material layer is carried out by a method that includes a step of forming a binder solution layer 56 by applying a binder solution 50 containing a binder 54 to a current collector 10, a step of depositing the binder solution layer 56 and a compound material paste layer 46 on the current collector 10 by applying a compound material paste 40 over the binder solution layer 56, and a step of obtaining an electrode in which the compound material layer is formed on the current collector 10 by drying both the binder solution layer 56 and the compound material paste layer 46. Here, the binder solution 56 has a binder solution non-coated region 58 where a surface 12 of the current collector 10 is exposed, and the drying is carried out in a state in which a portion of the compound material paste layer 46 is deposited on the current collector 10 in the binder solution non-coated region 58.

Abstract: A Faraday rotator of an opto-isolator in a laser processing apparatus includes a crystal cylinder that causes the Faraday effect, an enclosing tube, cooling tubes, and a magnet. The enclosing tube encases the crystal cylinder. The cooling tubes are sandwiched between the crystal cylinder and the enclosing tube at both ends of the crystal cylinder. The cooling tubes have passages through which a coolant flows. The coolant circulates through a space between the crystal cylinder and the enclosing tube, and the passages, thereby cooling the crystal cylinder.

Abstract: According to the present invention, provided is a method for producing a battery electrode employing a configuration in which a compound material layer containing an active material 22 and a binder 54 is retained on a current collector 10. The formation of the compound material layer is carried out by a method including: a step of forming a binder solution layer 56 by applying a binder solution 50 containing the first binder 54 to the current collector 10; a step of depositing the binder solution layer 56 and a compound material paste layer 46 on the current collector 10 by applying the compound material paste 40 over the binder solution layer 56; and a step of obtaining an electrode in which the compound material layer is formed on the current collector 10 by drying both the binder solution layer 56 and the compound material paste 40.

Abstract: A fiber laser processing apparatus controls a LD drive current ILD in a power feedback control mode (FIG. 3E) such that output of a fiber laser beam FB rises substantially from zero or a value around zero to a preceding level having no substantial effect on laser processing and arrives at a desired level (PA) for the laser processing from a preceding level PB after a first time period (preceding pulse width TB) has elapsed (time point t2 of FIGS. 3A to 3F) from the start of the rising to the preceding level (time point t1 of FIGS. 3A to 3F), and this may effectively prevent occurrence of a high-peak pulse HP at the rising edge of the fiber laser beam FB (FIG. 3F).

Abstract: A fiber laser processing apparatus controls a LD drive current ILD in a power feedback control mode (FIG. 3E) such that output of a fiber laser beam FB rises substantially from zero or a value around zero to a preceding level having no substantial effect on laser processing and arrives at a desired level (PA) for the laser processing from a preceding level PB after a first time period (preceding pulse width TB) has elapsed (time point t2 of FIGS. 3A to 3F) from the start of the rising to the preceding level (time point t1 of FIGS. 3A to 3F), and this may effectively prevent occurrence of a high-peak pulse HP at the rising edge of the fiber laser beam FB (FIG. 3F).

Abstract: A fiber laser processing apparatus controls a LD drive current ILD in a power feedback control mode (FIG. 3E) such that output of a fiber laser beam FB rises substantially from zero or a value around zero to a preceding level having no substantial effect on laser processing and arrives at a desired level (PA) for the laser processing from a preceding level PB after a first time period (preceding pulse width TB) has elapsed (time point t2 of FIGS. 3A to 3F) from the start of the rising to the preceding level (time point t1 of FIGS. 3A to 3F), and this may effectively prevent occurrence of a high-peak pulse HP at the rising edge of the fiber laser beam FB (FIG. 3F).

Abstract: In a delivery information setting processing, for each macro, deliverability of the macro and a kind of macro data for constituting the macro are set for each process technology. In a registration processing, the macro data is registered in correlation with a macro name and a process technology name. In a delivery control processing, permission to deliver the macro is given based on the combinational condition of a macro name, a process technology name, a kind of the macro data, a macro revision, and a macro demander. In a first delivery processing, the macro data of the macro permitted for delivery through the delivery control processing is delivered to the macro demander.

Abstract: A fiber laser processing apparatus controls a LD drive current LD in a power feedback control mode (FIG. 3E) such that output of a fiber laser beam FB rises substantially from zero or a value around zero to a preceding level having no substantial effect on laser processing and arrives at a desired level (PA) for the laser processing from a preceding level PB after a first time period (preceding pulse width TB) has elapsed (time point t2 of FIGS. 3A to 3F) from the start of the rising to the preceding level (time point t1 of FIGS. 3A to 3F), and this may effectively prevent occurrence of a high-peak pulse HP at the rising edge of the fiber laser beam FB (FIG. 3F).

Abstract: A Faraday rotator, an opto-isolator, and a laser processing apparatus are provided in which change in polarization rotation angle caused by a temperature increase in the Faraday rotator can be prevented, even when an increase in laser beam output or change in ambient temperature occurs. A Faraday rotator 3 of an opto-isolator 11 in a laser processing apparatus 1 includes a crystal cylinder 6 that causes the Faraday effect, an enclosing tube 7, cooling tubes 8, and a magnet 9. The enclosing tube 7 encases the crystal cylinder 6. The cooling tubes 8 are sandwiched between the crystal cylinder 6 and the enclosing tube 7 at both ends of the crystal cylinder 6. The cooling tubes 8 have passages 13 through which a coolant 15 flows. The coolant 15 circulates through a space LS between the crystal cylinder 6 and the enclosing tube 7, and the passages 13, thereby cooling the crystal cylinder 6.

Abstract: Lithium cobalt oxide, which can provide a nonaqueous electrolyte secondary battery having an excellent initial capacity and an excellent capacity retention, and a method for manufacturing the same are provided. The lithium cobalt oxide has a tap density of at least 1.7 g/cm3 and a pressed density of 3.5 to 4.0 g/cm3. A method for manufacturing the lithium cobalt oxide includes the step of selecting a lithium cobalt oxide (A) and a lithium cobalt oxide (B) so that a difference in the tap density between the lithium cobalt oxide (A) and the lithium cobalt oxide (B) is at least 0.2 g/cm3; and mixing the lithium cobalt oxide (A) and the lithium cobalt oxide (B).

Abstract: Lithium cobalt oxide, which can provide a nonaqueous electrolyte secondary battery having an excellent initial capacity and an excellent capacity retention, and a method for manufacturing the same are provided. The lithium cobalt oxide has a tap density of at least 1.7 g/cm3 and a pressed density of 3.5 to 4.0 g/cm3. A method for manufacturing the lithium cobalt oxide includes the step of selecting a lithium cobalt oxide (A) and a lithium cobalt oxide (B) so that a difference in the tap density between the lithium cobalt oxide (A) and the lithium cobalt oxide (B) is at least 0.2 g/cm3; and mixing the lithium cobalt oxide (A) and the lithium cobalt oxide (B).

Abstract: Lithium cobalt oxide, which can provide a nonaqueous electrolyte secondary battery having an excellent initial capacity and an excellent capacity retention, and a method for manufacturing the same are provided. The lithium cobalt oxide has a tap density of at least 1.7 g/cm3 and a pressed density of 3.5 to 4.0 g/cm3. A method for manufacturing the lithium cobalt oxide includes the step of selecting a lithium cobalt oxide (A) and a lithium cobalt oxide (B) so that a difference in the tap density between the lithium cobalt oxide (A) and the lithium cobalt oxide (B) is at least 0.2 g/cm3; and mixing the lithium cobalt oxide (A) and the lithium cobalt oxide (B).