Electrochemical cell for hybrid electric vehicle applications

Details Electrochemical cell for hybrid electric vehicle applications Electrochemical cell for hybrid electric vehicle applications

H - Electricity

01

M

H01M 2/00 (2006.01) H01M 2/02 (2006.01) H01M 2/26 (2006.01) H01M 10/02 (2006.01) H01M 10/04 (2006.01) B60L 11/18 (2006.01)

Patent

CA 2661100

Embodiments of the present invention are directed an electrochemical energy storage device, such as a cell or a battery, that includes segmented stackable bus bars for stacking electrodes, the bus bar segments extending a substantial length of an edge of the electrodes to provide proper inter-electrode spacing, substantially uniform electrochemical potential and current density between electrodes, efficient internal heat dissipation and desired electrode structural rigidity, and, optionally, a compression member, separate from the case, to compress the stacked electrodes.

Dans certains de ses modes de réalisation, la présente invention concerne un dispositif de stockage d'énergie électrochimique, pile ou batterie par exemple, qui inclut des barres omnibus empilables segmentées destinées à empiler des électrodes. Les segments desdites barres omnibus s'étendent sur une longueur importante d'un bord des électrodes, ce qui permet de: ménager un espace adéquat entre les électrodes ; obtenir un potentiel électrochimique et une densité de courant sensiblement uniformes entre les électrodes ; dissiper efficacement la chaleur interne et conférer la rigidité structurelle voulue aux électrodes. En outre, le dispositif de stockage décrit peut éventuellement comporter un élément de compression distinct du boîtier et destiné à comprimer les électrodes empilées.

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