Portable acoustic apparatus for in-situ monitoring of a weld in a workpiece

    公开(公告)号:US10557832B2

    公开(公告)日:2020-02-11

    申请号:US15499957

    申请日:2017-04-28

    Abstract: An apparatus for in-situ monitoring of a welded joint in a workpiece includes an ultrasonic sending transducer and a receiving transducer. The ultrasonic sending transducer includes a probe head disposed on a plurality of individually-activatable piezoelectric elements, and a plurality of waveguide probes projecting orthogonally from a planar surface. A wave attenuator is disposed between individual ones of the waveguide probes. A receiving transducer is disposed therein. The workpiece is insertable between the waveguide probes of the ultrasonic sending transducer and the receiving transducer. The ultrasonic sending transducer urges the probe head towards the receiving transducer such that the waveguide probes physically contact the welded joint in the workpiece. The piezoelectric elements individually excite the waveguide probe that is in physical contact with the welded joint in the workpiece. The acoustic receiving transducer is disposed to monitor the welded joint in the workpiece.

    SYSTEM AND METHOD FOR WELDING WORKPIECES OF A MOTOR VEHICLE

    公开(公告)号:US20210237212A1

    公开(公告)日:2021-08-05

    申请号:US16778861

    申请日:2020-01-31

    Abstract: A welding block for a welding system secures together first and second components of a workpiece for a motor vehicle to reduce distortion of the first and second components during a welding process. The welding block includes a jig mechanism that has a proximal surface for receiving a load from an arm of the welding system. The jig mechanism further includes a distal surface for engaging the first component and securing the first and second components to one another during the welding process. The jig mechanism defines a passage, such that heat flows from the distal surface to a coolant flowing through the passage. The welding block further includes a sensor coupled to the jig mechanism for detecting a measured variable associated with at least one of the first and second components.

    METHOD AND APPARATUS FOR EVALUATING A BATTERY CELL

    公开(公告)号:US20190064277A1

    公开(公告)日:2019-02-28

    申请号:US15692766

    申请日:2017-08-31

    Abstract: A method and an apparatus for evaluating a battery cell. The battery cell may include a hermetically sealed outer casing, a plurality of electrically conductive components enclosed within the outer casing, an electrically conductive terminal having a proximal end that extends within the outer casing and a distal end that extends in a longitudinal direction relative to the battery cell outside the outer casing, and a solid electrical and mechanical joint formed between one or more of the electrically conductive components and the proximal end of the electrically conductive terminal. Evaluation of the battery cell may include measuring the impedance of the battery cell while applying a longitudinal pulling force or a transverse bending force to the electrically conductive terminal and the solid electrical and mechanical joint.

    CORRUGATED FOIL TABS FOR BATTERY CELLS

    公开(公告)号:US20250007111A1

    公开(公告)日:2025-01-02

    申请号:US18342201

    申请日:2023-06-27

    Abstract: Some embodiments disclosed herein are directed to battery cells with corrugated foil tabs. Some embodiments may include a battery cell comprising a cathode, an anode and a corrugated foil tab coupled to the cathode or the anode, wherein the corrugated foil tab has a length in a first plane, includes alternating peaks and troughs in a second plane along the length of the corrugated foil tab, and has a width in a third plane, and wherein the first plane, second plane, and third plane are orthogonal to each other. Other embodiments may be disclosed or claimed.

    Method of fabricating an electrode for an electrochemical cell

    公开(公告)号:US11942619B2

    公开(公告)日:2024-03-26

    申请号:US17725117

    申请日:2022-04-20

    CPC classification number: H01M4/0404 H01M4/0409 H01M4/382 H01M2004/021

    Abstract: In various aspects, the present disclosure provides a method of manufacturing an electrode for an electrochemical cell. The method includes contacting a solid electrode material and a substrate at an interface. The method further includes preparing a liquid electrode material at the interface by heating at least a portion of the solid electrode material to a first temperature. The first temperature is greater than or equal to a melting point of the solid electrode material. The method further includes creating a layer of the liquid electrode material on the substrate by moving at least one of the solid electrode material and the substrate with respect to the other of the solid electrode material and the substrate. The method further includes forming the electrode by cooling the liquid electrode material to a second temperature. The second temperature is less than or equal to the melting point.

Patent Agency Ranking