Toyota Jidosha Kabushiki Kaisha

Yoichi Naruse

Tomotaka Hagino

Yuta Nemoto

Tomohiro Ono

Hiroyasu Kado

Kaito Matsubara

Naoto Kagami

Hiroki Nagai

Satoshi Suzuki

Takashi Harayama

Hiroyuki Nakayama

Toshinori Okura

Satoshi Yoshida

Masato Komatsuki

Toshiya Okada

Kaoru Yugahara

Hiroya Kondou

A welding step involves solid-state welding together an external terminal and a seat portion of an internal terminal by causing the external terminal or the internal terminal to vibrate while detaching an insulator from the external terminal in at least a region surrounding the seat portion and pressing the external terminal against the seat portion.

Battery and method of manufacturing battery

A battery manufacturing method includes assembling an internal terminal, a gasket, a battery case component, an insulator, and an external terminal into a state where a cylindrical part of the gasket is fitted in a mounting hole of the battery case component, a projecting part of the internal terminal is fitted in the cylindrical part of the gasket, the insulator is disposed on an outer surface of the battery case component with the projecting part fitted in a through-hole, and the external terminal is disposed on top of the insulator so as to lie on the projecting part. The external terminal is pressed against the projecting part of the internal terminal, and the external terminal or the internal terminal is vibrated to thereby weld together the projecting part and the external terminal in a solid state.

Battery and battery manufacturing method

A calibration area has a rectangular area and a peripheral area. The rectangular area includes a center area provided in the center portion and a first corner area, a second corner area, a third corner area, and a fourth corner area that are set at four corners sequentially in the circumferential direction. The center area has a line symmetry with respect to each of the two orthogonal axes passing through the center of the rectangular area. The heights of the areas are different.

Calibration jig and calibration method for horizontal articulated robot

A sealed-type battery includes an exterior body, a collector terminal, a hollow rivet defining a hollow section, and a reverse plate arranged between the collector terminal and the hollow rivet. The collector terminal includes: a projected section projected; a peripheral edge section provided; and a notch section provided in the peripheral edge section in a manner to surround the projected section and formed in a manner to reduce thickness of the collector terminal. In a projected direction of the projected section, the projected section is thicker than the peripheral edge section. A fitting section, to which the projected section is fitted, is provided in the reverse plate. The sealed-type battery includes a welded section that has a top surface opposing the hollow rivet and that joins the collector terminal and the reverse plate at a position between the projected section and the fitting section.

Sealed-type battery having a current interrupt device

A laser welding apparatus for joining a first member and a second member together by laser welding includes: a first laser beam applying device that applies a laser beam to a border area between the first member and the second member; and a second laser beam applying device that applies a laser beam to a laser beam application spot of each of the first member and the second member, the laser beam application spot being located ahead of a laser beam application spot to which the laser beam is applied by the first laser beam applying device, in a laser welding forward direction.

Laser welding apparatus and laser welding method

A battery houses an electrode body inside a battery case including a bottomed cylindrical case body having an opening part, and a plate-like lid member inserted in the opening part so as to seal the opening. The opening part and a lid peripheral edge part are welded hermetically by an energy beam irradiated from outside in the thickness direction of the lid member. In a specific section, the inner peripheral surface of the opening part and the peripheral edge surface of the lid peripheral edge part are welded in close contact with each other. A bead at the specific section takes a fan shape having a central angle of 160 to 200 degrees in a cross section, and the center of the fan shape is positioned on the inner peripheral surface and the peripheral edge surface.

Battery and method for producing same

A battery is equipped with a case () in which a fill opening (aperture) () is formed and a sealing cap (), which closes the fill opening () formed in the case (). The sealing cap () is formed of a thin plate that covers the fill opening () in the case (), the circumferential edge () of the sealing cap () is bonded to the case (), and the center () of the sealing cap () is bent from the circumferential edge () and bulges up toward the outside of the case (). In addition, a chamfer () is applied at the bent corner of the sealing cap ().

Battery

Provided is a technology for detecting abnormal temperature rise of a battery regardless of the number of batteries, and preventing a trouble caused by abnormal temperature rise. A battery production facility () for producing a secondary battery () comprises an abnormality detector () for detecting abnormal state (especially, abnormal temperature rise) of a plurality of secondary batteries (, . . . ), and a detector () for generating a control signal in order to take a predetermined step according to the detection result from the abnormality detector (). The abnormality detector () comprises a low temperature reactant () provided in contact with a part of the secondary battery () which becomes high temperature easily and reacts at a temperature lower than the temperature at which the secondary battery () becomes abnormal state, and a detection sensor () for detecting change of the low temperature reactant (), and detects abnormal state of the secondary battery () according to the detection result from the detection sensor ().

Growing community of inventors

Nagoya, Japan

Yoichi Naruse