Toyota Jidosha Kabushiki Kaisha

Hideaki Miyake

Shingo Hashimoto

Hajime Hasegawa

Hideaki Kimura

Mitsuru Tateishi

Yusuke Okuhata

Hirokazu Kawaoka

Satoshi Koide

Keishi Matsumoto

Copper reacts with a sulfide solid electrolyte to generate copper sulfide when an anode current collector layer made from copper, and an anode mixture layer containing the sulfide solid electrolyte are used to compose an anode, and the resistance of the interface between the anode current collector layer and the anode mixture layer increases. To alloy an anode current collector layer to lower the reactivity to a sulfide solid electrolyte, specifically, an anode includes: an anode mixture layer; and an anode current collector layer that is in contact with the anode mixture layer, wherein the anode mixture layer contains an anode active material and a sulfide solid electrolyte, and at least a surface of the anode current collector layer is made from material that contains an alloy of copper and metal of a higher ionization tendency than copper, the surface being in contact with the anode mixture layer.

Anode, and sulfide solid-state battery

To provide a stacked-cell battery that does not require formation of collector tabs and that has high production efficiency. The stacked-cell battery comprises a plurality of stacked unit cellsand has a cell regionand a collection region, the ends of the negative electrode collector layersand positive electrode collector layerson the collection regionside having shapes that do not include recesses or raised sections as viewed in the stacking direction, the collection regioncomprising negative electrode collecting sectionsthat are connected to each of the extensions of the negative electrode collector layersof the plurality of unit cells, and electrically connect them, but are not connected to the extensions of the positive electrode collector layers, and positive electrode collecting sectionsthat are connected to each of the extensions of the positive electrode collector layersof the plurality of unit cells, and electrically connect them, but are not connected to the extensions of the negative electrode collector layers

Stacked-cell battery

Provided are: a solid battery which has been sealed in an exterior material under a reduced pressure, wherein gas in the exterior material can be fully removed when depressurizing the inside of the exterior material; and a method of manufacturing the solid battery, the solid battery having a single cell having: a laminated body having a cathode layer, an anode layer, and an electrolyte layer disposed between the cathode layer and the anode layer; an insulating part disposed on an outer perimeter of the laminated body in a cross-sectional view of the laminated body in a direction orthogonal to a lamination direction thereof, and a pair of current collectors sandwiching the laminated body and the insulating part, wherein the single cell has been sealed in an exterior material under a reduced pressure; and the insulating part has vent holes.

Solid battery and method for manufacturing solid battery

An electrode body includes a laminated body and an insulating fixing member. The laminated body includes a positive-electrode active material layer, a negative-electrode active material layer, a negative-electrode current collector layer, and a solid electrolyte layer. The negative-electrode current collector layer includes a current-collector extension portion that extends outward further than the negative-electrode active material layer. The solid electrolyte layer includes an electrolyte extension portion that integrally covers an end surface of the negative-electrode active material layer and a base end portion of the current-collector extension portion. The insulating fixing member covers at least front and back surfaces of a distal end portion exposed from the second electrolyte extension portion.

Electrode body

A stator coil heating apparatus and a stator coil heating method that are capable of effectively preventing a core from thermal deformation particularly caused due to a magnetic flux generated by a coil head, without the problem of heating temperature variation, and also shortening a time for the process of heating a stator coil, are provided. A stator coil heating apparatus A to heat a stator coil L wound around a circular core F, comprises: induction heating coil headsandthat heat the circular coil L by generating an inductive effect acting from outside in the thickness direction of the core F, against circular winding coil bases La and Lb that are sticking out of end faces Fa and Fb of the core F in the thickness direction thereof; and shieldsandthat block a magnetic flux generated by the coil headsand, out of the end faces Fa and Fb of the core F in the thickness direction thereof.

Stator coil heating apparatus and stator coil heating method

A wiring apparatus includes a spool; an annular reel surrounding the spool to be rotatable about an axis common with the spool, the reel being previously wound with a wire in layers to be wound on the spool; a winding arm for guiding the wire from the reel to the spool and placed outside the reel so as to be movable around the spool about the axis; a first motor and others for driving the winding arm and others to move around the spool to wind the wire on the spool; and a second motor and others for driving the reel to rotate on the axis to unreel the wire of a required length from the reel during driving of the first motor.

Growing community of inventors

Nisshin, Japan

Hideaki Miyake