Current interrupt device for batteries

Details Current interrupt device for batteries Current interrupt device for batteries

H - Electricity

01

M

H01M 2/34 (2006.01) H01M 2/12 (2006.01) H01M 6/50 (2006.01)

Patent

CA 2653074

The invention is a battery containing at least one electrochemical cell having a sealing plate with a pressure relief vent, the sealing plate being part of an electrical circuit between one of the electrodes and the corresponding terminal under normal conditions but capable of changing shape to break the circuit without the cell venting when the temperature of the sealing plate rises to a predetermined level and then returning to its original shape to reestablish the broken circuit when the sealing plate temperature returns to a normal level.

L'invention concerne une batterie contenant au moins un élément électrochimique possédant une plaque d'étanchéité avec un évent d'équilibrage de pression, la plaque d'étanchéité étant une partie d'un circuit électrique entre une des électrodes et la borne correspondante dans des conditions normales mais capable de changer de forme pour couper le circuit sans l'aération de l'élément lorsque la température de cette plaque d'étanchéité monte à un niveau prédéterminé, puis de retrouver sa forme originale pour rétablir le circuit coupé lorsque la température de la plaque d'étanchéité retourne à un niveau normal.

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