公开(公告)号：US20250070437A1

公开(公告)日：2025-02-27

申请号：US18946955

申请日：2024-11-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Congsheng CHEN ,  Wenfa LIN ,  Yu DING ,  Yaoling WEN

IPC: H01M50/636 ,  B23K26/20 ,  B23K101/36 ,  H01M50/15 ,  H01M50/186

Abstract: The present disclosure relates to the field of battery technologies, and more particularly, to a battery cell, a battery, an electric apparatus, a welding method, and a welding device. The battery cell includes: an end cover having an injection hole defined thereon; and a seal sealingly connected to the injection hole. A first weld segment and a second weld segment are formed between the seal and the end cover. An annular weld seam of the seal is formed by enclosing with at least a part of the first weld segment and at least a part of the second weld segment together. The first weld segment is formed by continuous laser light. The second weld segment is formed by pulsed laser light.

公开(公告)号：US20250067698A1

公开(公告)日：2025-02-27

申请号：US18949456

申请日：2024-11-15

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jung Hoon LEE ,  Su Taek JUNG ,  Seok Jin KIM ,  Ji Hoon LEE ,  Sang Hyun KOO

IPC: G01N27/20 ,  B23K31/12 ,  B23K101/36 ,  G01N27/04 ,  G01N33/207 ,  H01M10/052 ,  H01M10/42 ,  H01M10/48 ,  H01M50/536

Abstract: The present invention provides an apparatus for inspecting a welding state in a welded portion for an electronic or mechanical coupling in a lithium secondary battery, the apparatus including: a measuring unit configured to obtain data for deriving a resistance value of the welded portion by allowing a resistance measuring probe to contact the welded portion; and a controller configured to communicate with the measuring unit, determine the resistance value of the welded portion by receiving the data obtained from the measuring unit, and determine whether a weak welding was performed by comparing the determined resistance value with a threshold resistance value, in which the measuring unit is configured to allow the resistance measuring probe to contact one end and the other end of the welded portion.

公开(公告)号：US20250065430A1

公开(公告)日：2025-02-27

申请号：US18724846

申请日：2022-11-16

Applicant: BS TECHNICS Co., Ltd.

Inventor： Jun Sik KIM ,  Young Do KIM ,  Jung Sik CHOI ,  Tae Kyoung JUNG ,  Seung Ho KIM ,  In Ho PARK

IPC: B23K1/002 ,  B23K3/047 ,  B23K3/08 ,  B23K101/36

Abstract: The present invention relates to induction-heated soldering automation equipment and, particularly, to equipment comprising: a jig unit for fixing a substrate on which an electronic element is mounted; a first conveyor for transferring the jig unit; an induction heating unit which is provided above the jig unit so as to be movable in the X-axis, Y-axis, and Z-axis directions, and which includes a magnetic induction coil for soldering the electronic element by induction-heating the substrate fixed to the jig unit; and a controller for controlling the first conveyor and the induction heating unit, wherein continuously supplied molded interconnected devices (MIDs), PCBs, or FPCBs are locally heated through contactless induction heating so that electronic elements can be automatically soldered in a state in which thermal damage is minimized.

公开(公告)号：US12233491B2

公开(公告)日：2025-02-25

申请号：US17335395

申请日：2021-06-01

Applicant: TE Connectivity Germany GmbH

Inventor： Karlheinz Glaser ,  Walter Weinerth ,  Wenting Yan

IPC: B23K9/23 ,  B23K9/16 ,  B23K26/21 ,  B23K26/323 ,  B23K35/38 ,  B23K37/00 ,  B23K37/006 ,  B23K101/32 ,  B23K101/36

Abstract: A welding method includes providing a first connector having a first end, providing a second connector having a second end for being welded to the first end, overlapping the first end and the second end, applying a contactless heating to a central section of the first end and melting an end section of the first end facing the second connector, and cooling the first end and the second end to form a weld connecting the first connector and the second connector. The first connector and the second connector extend in opposite directions from the weld.

公开(公告)号：US20250041960A1

公开(公告)日：2025-02-06

申请号：US18713969

申请日：2022-11-29

Applicant: LG Energy Solution, Ltd.

Inventor： Ah Ram Park ,  Yong Tae Lee ,  Seung Byung Lee ,  Seok Je Kim

IPC: B23K11/06 ,  B23K11/00 ,  B23K101/36 ,  H01M50/536

Abstract: An apparatus and method for welding electrode tabs protruding from an electrode assembly to each other, which may include a guide part configured to gather the electrode tabs; and a welding part configured to weld the electrode tabs gathered by the guide part on a predetermined welding area. The guide part may be configured to press the electrode tabs toward the electrode assembly, while moving toward the electrode assembly, such that a length from the electrode assembly to the welding area increases in at least a portion of the electrode tabs before being welded by the welding part. Accordingly, some aspects of the present invention may prevent the electrode tabs from disconnecting.

公开(公告)号：US12218363B2

公开(公告)日：2025-02-04

申请号：US17261257

申请日：2019-03-08

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Junil Kang ,  Jinnam Kim ,  Yongseok Oh ,  Sunghyun Kim ,  Sunghoon Kim

IPC: H01M50/169 ,  H01M50/147 ,  H01M50/15 ,  B23K26/06 ,  B23K26/20 ,  B23K26/24 ,  B23K101/36 ,  H01M50/103 ,  H01M50/502 ,  H01M50/609

Abstract: A rechargeable battery includes a case having an opening and accommodating an electrode assembly therein; a cap plate closing and sealing the opening; and a welding bead part along a circumference of the cap plate and at a contact surface of the case and the cap plate, wherein the welding bead part includes first and second regions on a cross-section vertical to a welding progressing direction of the welding bead part, the first region has a first boundary line on the cross-section, a contact surface is between end parts of the first boundary line, the second region has a second boundary line on the cross-section, the first region is between end parts of the second boundary line to form first and second contact points in contact with the first boundary line, the first region is deeper than the second region, and the second region is wider than the first region.

公开(公告)号：US20250030057A1

公开(公告)日：2025-01-23

申请号：US18714694

申请日：2022-12-02

Applicant: Dyson Technology Limited

Inventor： Samuel James CHAPMAN

IPC: H01M10/0585 ,  B23K26/362 ,  B23K26/402 ,  B23K101/36 ,  B23K103/00 ,  H01M10/0562

Abstract: Methods of making components for solid-state electrochemical cells are disclosed. In examples, the component comprises an electrode layer and an electrolyte layer, and the method: providing a substrate; depositing an electrolyte material on a first surface of the substrate to form an electrolyte layer on the substrate, wherein a first surface of the electrolyte layer contacts the first surface of the substrate along an interface; depositing an electrode material on a second surface of the electrolyte layer to form an electrode layer on the electrolyte layer, the second surface of the electrolyte layer being opposed to the first surface of the electrolyte layer; and separating the electrolyte layer from the substrate along the interface. Also described herein are methods of methods of providing solid-state electrochemical cells, solid-state electrochemical cells, battery stacks, and electrically-powered devices.

公开(公告)号：US20250018496A1

公开(公告)日：2025-01-16

申请号：US18712984

申请日：2023-01-17

Applicant: LG Energy Solution, Ltd.

Inventor： Hoan Young Park

IPC: B23K11/36 ,  B23K11/10 ,  B23K101/36

Abstract: A tab guide according to an embodiment of the present invention may press a plurality of electrode tabs so that the plurality of electrode tabs are gathered together.
The tab guide may include a contact part, which is in contact with the electrode tabs, and a mounting part in which the contact part is detachably mounted and which has higher rigidity than that of the contact part.

公开(公告)号：US12195816B2

公开(公告)日：2025-01-14

申请号：US17630249

申请日：2020-07-03

Applicant: JFE Steel Corporation

Inventor： Takeshi Omura ,  Yoshihisa Ichihara ,  Shigehiro Takajo ,  Hirotaka Inoue

IPC: C21D8/12 ,  B23K26/06 ,  B23K26/073 ,  B23K26/08 ,  B23K26/364 ,  B23K26/40 ,  B23K101/16 ,  B23K101/34 ,  B23K101/36 ,  B23K103/04

Abstract: The linear groove formation method includes a resist forming process of forming a coated resist on a surface of a steel sheet, a laser irradiating process of irradiating laser beams onto the steel sheet while repeating a laser scanning in a direction intersecting a rolling direction of the steel sheet cyclically in the rolling direction of the steel sheet to remove the coated resist in portions irradiated with the laser beams, and an etching process of forming linear grooves by etching portions of the steel sheet from which the coated resist is removed. In the laser irradiating process, the coated resist is removed by using two or more laser irradiating devices, with a certain irradiation energy, a certain beam diameter in a direction perpendicular to a laser scanning direction, and a certain incidence angle with respect to the surface of the steel sheet.

公开(公告)号：US12191589B2

公开(公告)日：2025-01-07

申请号：US17243944

申请日：2021-04-29

Applicant: Aptiv Technologies AG

Inventor： William Falk

IPC: H01R4/06 ,  H01R12/69 ,  H01R43/048 ,  H01R43/16 ,  H01R43/20 ,  H01R43/24 ,  B23K35/26 ,  B23K101/36 ,  B23K103/12

Abstract: An electrical device includes a flat electrical conductor defining an aperture and an electrically conductive rivet with a body having a layer of a solder composition disposed on a first side and a tubular shaft extending from a second side of the body opposite the first side. A free end of the tubular shaft is flared such that the free end has a diameter larger than a diameter of the aperture.