Cooling method for assembled batteries

Details Cooling method for assembled batteries Cooling method for assembled batteries

H - Electricity

01

M

H01M 2/02 (2006.01) H01M 2/10 (2006.01) H01M 10/50 (2006.01)

Patent

CA 2217107

The present invention concerns a method for cooling assembled batteries comprising rechargeable batteries and intends to avoid temperature dispersion among single cells and hence avoid dispersion of battery performance. A module battery 10 is so constructed that convex portions 8 provided on the battery container 2 of the single cells 7 come in contact with each other creating by recessed portion 9 a space 11 in the vertical direction between single cells 7. The module battery 10 is banded by means of aluminum plates 12 and iron bands 13 with the single cells 7 at both ends forced inwardly. The module batteries are placed sideways with the terminals facing the same direction and the cooling medium flows toward the surface where the electrode poles are provided.

Cette invention concerne une méthode de refroidissement de batteries rechargeables assemblées en module visant à éviter les inégalités de température entre les cellules et une baisse de rendement des batteries. Le module 10 est assemblé de manière que les nervures 8 des boîtiers 2 de cellule 7 soit alignées et définissent entre elles un espace vide 11 lorsqu'elles sont appuyées l'une sur l'autre. Le module 10 obtenu est enveloppé au moyen de plaques d'aluminium 12, et des feuillards en fer 13 serrent les cellules 7 de bout contre les cellules intermédiaires. Les cellules du module sont disposées côte à côte, bornes orientées dans la même direction, et l'agent de refroidissement coule vers l'extrémité où se trouvent les électrodes.

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