Saft

Saft Groupe Sa

Alexandre Narbonne

Gerard Rigobert

Thierry Berlureau

Benoit Turbe

Jérôme Calmejane

Gérard Rigobert

Matthieu Leyko

Marc Chesnais

Christophe Dos Reis

Benoît Turbe

Julien Bobinet

Olivier Rabaud

The invention relates to an electrochemical element () comprising: a) a container () comprising an opening allowing the introduction of at least one electrochemical beam (); and b) a closing part () for closing said container, comprising: i) at least one flat inner surface () which is oriented towards the inside of the container and can be directly electrically connected to a current collector (), ii) at least one flat outer surface () 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 () 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&#xb0; 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.

Cover for an electrochemical cell with enhanced heat conduction

The invention relates to an assembly of a plurality of electrochemical elements (), in which the electrochemical elements comprise a container () having a side wall, said assembly being characterized in that at least one portion of the side wall of at least one of the containers is in contact with a partition obtained by means of an additive manufacturing method, and is produced by superposing at least two strips () of a structural material.

Assembly of electrochemical cells using an additive manufacturing method

The invention resolves the problem of swelling of sealing electrochemical cells of prismatic format when they are assembled side by side in a grouping box by proposing a battery comprising at least two electrochemical cells () of prismatic format, wherein the electrochemical cells are separated by a rigid wedge () having a hardness greater than or equal to 90 Shore A according to the standard ASTM D 2240 and by a flexible wedge () having a hardness of up to 60 Shore A according to the standard ASTM D 2240, the rigid wedge and the flexible wedge being electrically insulating.

Compensation system for swelling of electrochemical cells

A safety device () for a battery () being designed so that an electrical connector () can be connected to the positive () and negative () electrical terminals of the battery () in a first (A+, A&#x2212;) or a second (B+, B&#x2212;) connection position, the safety device () being adapted to be selectively positioned in a first or a second safety position so that only the desired connection positions are accessible to an electrical connector (). A battery including the safety device or a set of such batteries and a method for making such a set of batteries safe.

Device and method for making a battery safe

An electrochemical storage cell retention system is provided for storage cells () with a container comprising a bottom portion (), and a top portion () provided with electrical output terminals (). The system comprises a first tray member () provided with through openings () and a plurality of adapter cups (), each adapter cup () being designed to be placed on the top portion () of a storage cell () and to be received in one of the through openings () of the first tray member. The retention system is modular and mechanically strong.

Growing community of inventors

Blanquefort, France

Alexandre Narbonne