公开(公告)号：US20230155187A1

公开(公告)日：2023-05-18

申请号：US17917127

申请日：2021-04-07

Applicant: SAFT

Inventor： Alexandre BEUGNON ,  Alexandre NARBONNE ,  Gérard RIGOBERT ,  Nicolas SCHIFFANO ,  Paulin TRUCHE ,  Christian VEZAT

IPC: H01M10/42 ,  H01M50/169 ,  H01M50/119 ,  H01M50/124 ,  H01M50/559

CPC classification number: H01M10/4285 ,  H01M50/169 ,  H01M50/119 ,  H01M50/1243 ,  H01M50/559 ,  H01M2004/026

Abstract: This electrochemical element for a battery, comprising a first electrode of a first polarity, a first terminal of the first polarity, a second electrode of a second polarity, a second terminal of the second polarity, and a casing comprising a first wall and a second wall. The first wall and the second wall each comprise a base body of metal and an electrically insulating layer. The electrically insulating layer comprises either a plastic coating or a layer resulting from a surface treatment. Each of the base bodies comprises a base body edge. The edges of the base bodies are joined by a weld bead to form the casing. At the location of the weld bead, the base bodies are free of the electrically insulating layer.

公开(公告)号：US20240072399A1

公开(公告)日：2024-02-29

申请号：US17767544

申请日：2020-10-15

Applicant: SAFT

Inventor： Thierry BERLUREAU ,  Gérard RIGOBERT ,  Richard ROY

IPC: H01M50/581 ,  H01M50/521

CPC classification number: H01M50/581 ,  H01M50/521 ,  H01M2200/103

Abstract: A disconnection device, in particular for disconnecting two electrically connected electrochemical elements. The present invention also relates to a device for short-circuiting two electrodes of opposite polarity in an electrochemical element. The subject matter of the invention includes an assembly comprising: ⋅ a) a connecting part (3) and ⋅ b) a disconnection device (4), the disconnection device being intended to disconnect two electrochemical elements (1, 2) connected by the connecting part (3), the disconnection device (4) comprising: ⋅ i) microparticles (5) capable of expanding when their temperature reaches a threshold value, the threshold value being below 150° C., ⋅ ii) a capsule (4a, 4b) enclosing all of the microparticles (5), the capsule (4a, 4b) being arranged such that when the temperature of the microparticles (5) reaches the threshold value, the expansion of the microparticles disconnects the connection between the two electrochemical elements (1, 2).

公开(公告)号：US20250055138A1

公开(公告)日：2025-02-13

申请号：US18722657

申请日：2022-12-20

Applicant: SAFT

Inventor： Gérard RIGOBERT ,  Alexandre NARBONNE

IPC: H01M50/474 ,  B23K31/02 ,  H01M10/0585 ,  H01M50/477 ,  H01M50/483 ,  H01M50/536 ,  H01M50/54

Abstract: The invention relates to an electrochemical bundle comprising a plurality of stacks each including a first polarity electrode, a second polarity electrode, a first separator and a second separator. Each first polarity electrode comprises an electrical connection tab.
The electrochemical bundle comprises a first metallic separator interposed between each pair of adjacent electrical connection tabs. The first separator is attached to at least one of said electrical connection tabs.
The first separator extends, between each pair of adjacent electrical connection tabs, between a lower edge and an upper edge.
The upper edges of the first separator are substantially flush with the upper edges of the electrical connection tabs.

公开(公告)号：US20240387957A1

公开(公告)日：2024-11-21

申请号：US18688483

申请日：2022-07-27

Applicant: SAFT

Inventor： Gérard RIGOBERT

IPC: H01M50/533 ,  H01M10/04 ,  H01M10/0525 ,  H01M50/103 ,  H01M50/15 ,  H01M50/536

Abstract: An electrochemical cell includes a container having a bottom and containing an assembly of parallelepipedal plates consisting of one or more positive plates including positive tabs and negative plates including negative tabs, separated by a separator; one or more covers closing an opening of the container; an electrical connection part of a given polarity connecting a tab of the same polarity to a current output terminal of the cell of the same polarity, fixed to a cover; an electrical connection part of opposite polarity connecting a tab of opposite polarity to a current output terminal of opposite polarity, which is fixed to, and electrically insulated from, the cover, the bottom of the container, or a second cover electrically insulated from the first cover; the connection parts each comprising a support plate having a projecting element for connecting a given polarity tab to the current output terminal of corresponding polarity.