Saft

Jérôme Calmejane

Alexandre Narbonne

Philippe Genin

Benoit Vasselin

Benoit Turbe

Marc Chesnais

Benoît Turbe

Benoît Vasselin

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 lithium electrochemical generator battery, including a box (), configured to house a plurality of lithium electrochemical generators; a cover () arranged gas-tightly on the opening () of the box; an opening () forming a vent situated in one of the walls of the box () or situated in the cover (); a conduit () having two openings () where one of the openings () is gas-tightly connected to the opening () forming a vent of the box; a covering part () positioned gas-tightly at an opening of a wall of the compartment and the second opening () of the conduit, and where said covering part comprises a portion () adapted to tear at a threshold pressure Ps; where the walls of the box, the cover, the conduit and the covering part are secured to each other so as to ensure sealing against the gases up to a pressure above the threshold pressure Ps.

Safety device for a lithium electrochemical generator battery

Growing community of inventors

Saint Germain du Puch, France

Jérôme Calmejane