Sony Corporation

Nittoku Engineering Co., Ltd.

Nittoku Co., Ltd.

Tatsuya Saito

Yosuke Hosoya

Hideki Nakai

Akinori Kita

Toshio Nishi

Asuki Yanagihara

Takashi Kanno

A coil winding device includes a wire rod delivering machine configured to deliver a wire rod through a nozzle, a wire storing jig configured to store the wire rod delivered from the nozzle, a wire-wound member around which the wire rod is wound, a wire-wound-member rotation mechanism configured to rotate the wire-wound member to wind the wire rod delivered from the nozzle around the wire-wound member, and a wire-storing-jig turning mechanism configured to turn the wire storing jig around a rotation axis of the wire-wound member to wind the wire rod delivered from the wire storing jig around the wire-wound member. The rotation axis of the wire-wound member and a wire-storing central axis of the wire storing jig are mutually orthogonal.

Coil winding device and method for manufacturing coil

A secondary battery includes: a cathode including an active material; an anode; and an electrolytic solution, and the active material includes a plurality of active material particles as primary particles and a carbon material. The active material particles contain a polyanion-based compound. The carbon material contains a first carbon material present on surfaces of the active material particles, and a second carbon material present between the active material particles provided with the first carbon material. A ratio B/A between a total carbon amount A and a surface carbon amount B of the active material satisfies 7&#x3c;B/A&#x3c;11.5. A ratio D/C between a specific surface area C of the active material, and an oil feed amount D of N-methyl-2-pyrrolidone satisfies 1.5&#x3c;D/C&#x2266;2.

Secondary battery-use active material, secondary battery-use electrode, secondary battery, battery pack, electric vehicle, electric power storage system, electric power tool, and electronic apparatus

A winding device includes a wire cutting mechanism for cutting the wire wound around the winding target member in the vicinity of the terminal, and a wire binding mechanism for winding, around the terminal, the end portion of the wire wound around the winding target member and cut by the wire cutting mechanism. The wire binding mechanism includes a cylindrical member through which the terminal is insertable, and a rotating mechanism for rotating the cylindrical member about the terminal. A protrusion is formed at a distal end of the cylindrical member so as to protrude in an axial direction of the cylindrical member.

Winding device and method for binding wire material to terminal

Growing community of inventors

Fukushima, Japan

Tatsuya Saito