Nissan Motor Company Limited

Nidec Corporation

Apb Corporation

Yuichiro Yokoyama

Hideaki Horie

Tomohiro Kaburagi

Yusuke Emori

Kazuyuki Yoda

Yuki Kusachi

Shinji Takemoto

Shoki Yamazaki

Kenichi Toyoshima

Junya Matsuyama

Eiji Minegishi

Tooru Kosemura

Shinichi Akaishi

Shinya Kaneoya

Yohji Kawasaki

Masanori Shimada

Hiroshi Kubota

Takuya Sakurai

Koh Hatanaka

A method of manufacturing a battery electrode includes a powder supply step, a vibration step, a sorting step, a moving step, and a deposition step, in the powder supply step, a powdercomposed of granulated particles is supplied, in the vibration step, vibration is applied to the powder, in the sorting step, the powder is caused to pass through at least one opening H, Hto adjust a particle diameter of the granulated particles to a particle diameter that allows passing through the opening, in the moving step, the powder that has passed through the opening is moved from an outlet position Pof the opening to a supply position Pwhere the powder is supplied to the surface of a current collector, and in the deposition step, the powder is deposited on the surface of the current collector. With the method of manufacturing a battery electrode, it is possible to provide a battery electrode that can improve battery performance by making a thickness and a density of the powder composed of granulated particles supplied onto the current collector uniform.

Method of manufacturing battery electrode

A battery manufacturing method includes forming a unit cell having a positive electrode that is obtained by a positive electrode active material layer containing an electrolytic solution being disposed on a positive electrode current collector, a negative electrode that is obtained by a negative electrode active material layer containing an electrolytic solution being disposed on a negative electrode current collector, and a separator interposed between the positive and negative electrodes. Heat sealing a seal part that is disposed at an outer peripheral portion of the unit cell. Cooling the outer peripheral portion of the unit cell by using a cooling medium after carrying out the heat sealing of the seal part. The method is performed such that the positive electrode and the negative electrode are formed without an application film being subjected to a drying process performed through heating.

Battery manufacturing method

Provided is a means capable of improving the flatness of a surface of an electrode active material layer in which an electrode active material slurry without assuming addition of a binder. Upon producing a battery electrode which has a current collector and an electrode active material layer disposed on a surface of the current collector and containing an electrode active material, in a coating step of coating an electrode active material slurry in which the electrode active material is dispersed in a solvent on the surface of the current collector to form the electrode active material layer, an electrode active material slurry which has flow characteristics that a region A in which a shear stress is not increased according to an increase in shear rate is present and a region B in which a shear stress is increased and an increase rate thereof is decreased according to an increase in shear rate is present in a region having a shear rate larger than that of the region A, in a shear rate (horizontal axis)-shear stress (vertical axis) curve of the electrode active material slurry, is used as the electrode active material slurry, and, coating of the electrode active material slurry is performed at a coating rate at which the shear rate at the time of coating is a value in which a shear stress equal to or more than a yield stress of the electrode active material slurry is applied in the coating step.

Method for producing battery electrode

The present invention relates to a method of producing a lithium-ion battery member including an electrode composition layer that includes electrode active material particles and an electrolyte solution on a current collector or a separator, the method including: forming the electrode composition layer on a surface of a support different from either the current collector or the separator; and relocating the electrode composition layer from the surface of the support to the current collector or the separator, wherein a weight percent of the electrolyte solution in the electrode composition layer is 10 wt % or less based on the weight of the electrode composition layer, in the forming the electrode composition layer on a surface of a support and in the relocating the electrode composition layer from the surface of the support to the current collector or the separator.

Production method for lithium-ion battery member

A method for estimating a service life of a motor that is driven by variable duty cycle control. The method includes calculating an elapsed service life ratio representing a ratio of an elapsed service life to all service life according to the following formula to estimate the service life of the motor: where Lrepresents the elapsed service life ratio, trepresents a driving time in a section i, Lrepresents a service life expectancy at a duty cycle Din the section i and at an environmental temperature of the motor being 40&#xb0; C., and Krepresents a temperature in the section i.

Method for estimating service life of motor, motor control system, blower system, and multicopter system

A fan includes sloping surfaces arranged at an inner peripheral surface of an air channel portion that are shaped such that an air passage is enlarged in a cross sectional area in a direction normal or substantially normal to a central axis. The inner peripheral surface of the air channel portion also includes a straight surface at which area the distance between the central axis and the inner peripheral surface of the air channel portion is substantially constant. Also, the straight surface of the air channel portion includes a plurality of slits each penetrating the air channel portion.

Axial fan and method of manufacturing the same

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Kyoto, Japan

Yuichiro Yokoyama