公开(公告)号：US20230198107A1

公开(公告)日：2023-06-22

申请号：US17926525

申请日：2021-05-20

Applicant: SAFT

Inventor： Christian VEZAT ,  Maxence BARDIAU

IPC: H01M50/533 ,  H01M50/536 ,  H01M50/103 ,  H01M50/15 ,  H01M50/55

CPC classification number: H01M50/533 ,  H01M50/536 ,  H01M50/103 ,  H01M50/15 ,  H01M50/55

Abstract: The present invention relates to an electrochemical assembly, of the type comprising



a first stack of electrochemical elements provided with a first electrical connection tab with a first polarity, the first stack of electrochemical elements extending along a stacking plane, a first common connection element adapted to electrically connect the first electrical connection tab to an electrical connection terminal with the first polarity,

公开(公告)号：US20250070417A1

公开(公告)日：2025-02-27

申请号：US18721994

申请日：2022-12-19

Applicant: SAFT

Inventor： Maxence BARDIAU ,  Valentin BLONZ

IPC: H01M50/538 ,  H01M50/103 ,  H01M50/15 ,  H01M50/169 ,  H01M50/186 ,  H01M50/528 ,  H01M50/591

Abstract: The invention relates to a battery cell comprising a bucket, a lid attached to the bucket, at least one first electrochemical bundle in the bucket, at least one first polarity collector.
The first polarity collector is integral with the lid and defines at least one first welding surface located away from the bucket, to which the electrical connection tabs of the first electrodes of the first electrochemical bundle are welded.
The cover comprises an upper part delimiting at least a first through opening located opposite the first welding surface in a direction of elevation.
The battery cell further comprises a sealing device attached to the cover and designed to seal the first through opening.

公开(公告)号：US20230282947A1

公开(公告)日：2023-09-07

申请号：US18008386

申请日：2021-06-04

Applicant: SAFT

Inventor： Valentin BLONZ ,  Maxence BARDIAU

IPC: H01M50/516 ,  H01M50/528 ,  H01M50/209 ,  H01M50/503

CPC classification number: H01M50/516 ,  H01M50/528 ,  H01M50/209 ,  H01M50/503

Abstract: A connection element for electrically, and mechanically connecting in a direction of connection, a first terminal of a first accumulator to a second terminal of a second accumulator, the first terminal and the second terminal protruding in a thickness direction, the connection element comprising a metal body having a first wing suitable for being welded onto the first terminal, a central part, and a second wing suitable for being welded onto the second terminal, the central part having a U-shape or a V-shape, the first wing and the second wing extending along the legs of the “U” or the “V”, respectively, the connection element being less prominent than, or at the same level in the thickness direction as at least one of the first terminal and of the second terminal.

公开(公告)号：US20230246307A1

公开(公告)日：2023-08-03

申请号：US17926512

申请日：2021-05-20

Applicant: SAFT

Inventor： Maxence BARDIAU

IPC: H01M50/536 ,  H01M50/533

CPC classification number: H01M50/536 ,  H01M50/533

Abstract: Such electrochemical unit comprises a first stack of electrochemical cells provided with a first electrical connection tab, a second stack of electrochemical cells provided with a second electrical connection tab, a common connection element, electrically connecting the first electrical connection tab and the second electrical connection tab and suitable for electrically connecting the first electrical connection tab and the second electrical connection tab to a connection terminal with a first polarity. The common connection element is connected by a material bond to the first electrical connection tab and to the second electrical connection tab.
Application to electrochemical batteries.