公开(公告)号：US20210218095A1

公开(公告)日：2021-07-15

申请号：US16771521

申请日：2018-12-21

Applicant: SAFT

Inventor： Alexandre NARBONNE ,  Gerard RIGOBERT ,  Thierry BERLUREAU ,  Matthieu LEYKO

IPC: H01M50/152 ,  H01M50/166 ,  H01M50/531 ,  H01M50/56 ,  H01M10/0525 ,  H01M10/613 ,  H01M10/6567 ,  H01M10/6553 ,  H01M10/6556 ,  H01M10/643 ,  H01M10/647

Abstract: The invention relates to an electrochemical element (1) comprising: a) a container (2) comprising an opening allowing the introduction of at least one electrochemical beam (7); and b) a closing part (3) for closing said container, comprising: i) at least one flat inner surface (4a, 4b, 4c) which is oriented towards the inside of the container and can be directly electrically connected to a current collector (6), ii) at least one flat outer surface (5a, 5b, 5c) which is oriented towards the outside of the container and can act as a terminal of the electrochemical element, and iii) at least one wall (8a, 8b, 8c) connecting said at least one flat inner surface to said at least one flat outer surface, said wall forming an angle of between 70 and 120° in relation to one of the two flat surfaces. The closing part of the container allows heat dissipation to be improved in the direction of the longitudinal axis of the element.

公开(公告)号：US20190237737A1

公开(公告)日：2019-08-01

申请号：US16339093

申请日：2017-10-04

Applicant: SAFT

Inventor： Thierry BERLUREAU ,  Gerard RIGOBERT

IPC: H01M2/26 ,  H01M4/485 ,  H01M4/66 ,  H01M2/02 ,  H01M2/30 ,  H01M10/0525 ,  H01M10/0587

CPC classification number: H01M2/263 ,  H01M2/022 ,  H01M2/024 ,  H01M2/0275 ,  H01M2/0277 ,  H01M2/028 ,  H01M2/0285 ,  H01M2/0287 ,  H01M2/0439 ,  H01M2/202 ,  H01M2/30 ,  H01M4/485 ,  H01M4/661 ,  H01M10/0525 ,  H01M10/0587

Abstract: The invention relates to a battery, in particular a lithium-ion type battery. The battery comprises a container (1) containing an electrochemical bundle with alternating positive and negative electrodes (2) framing electrolyte-impregnated separators, and at least one current output terminal (3, 4) forming a cover (3, 4) for closing the container (1). The edges (5, 6) of the electrodes (2) having one of the polarities are directly connected to the cover (3, 4) by welding.

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).